yashsingh1/xdaforums huggingface dataset:
[Xiaomi Poco F5 / Redmi Note 12 Turbo (China)] D7ooM:
Not a problem on my F5 running HyperOS.
[Xiaomi Poco F5 / Redmi Note 12 Turbo (China)] Blank504050:
Tried this on my F5. Can't notice any difference, it feels the same as everywhere.

Running AlphaDroid v2.0.

Could this problem be limited to certain regions?
[Tilt, TyTN II, MDA Vario III General] fgarcia90:
I have a new htc but cames from my motherinlaw with many contacts... how do I delete them to sinc with my ones?
[Tilt, TyTN II, MDA Vario III General] denco7:
When syncing with your PC, set your PC to overwrite info on your phone. Just make sure you back things your want to keep, to reload later.
[Xiaomi Redmi Note 7 Questions & Answers] Tawsif999:
Sooo large list of custom roms. I am new in this device's community. I want the most smooth rom till now. Android version can be any (10-13).

Any suggestions?
[Samsung Galaxy J7 Themes, Apps, and Mods] KillerXdPlayz:
THIS Aod Always on display Will work on any samsung running on marshmallow
[Samsung Galaxy S23] techguyone:
I'm trying to find out if this will work with a native headunit (Skoda Karoq) so the car supports wireless AA , but I'm unclear if the phone will, I've heard the S22 had issues for some time until Samsung fixed it, anyone running wireless AA natively know?
[Samsung Galaxy S23] Doda94:
It works as expected.
[Samsung Galaxy S23] techguyone:
Awesome, thanks, I didn't really want to have to go to wired or a dongle.
[Samsung Galaxy S23] Me Gusta:
Same, I'm running it on a 2022 VW Polo. Also has native wireless AA, and it's great.

Had some issues with randomly disconnecting when I just got the car, but after a few months that has been fixed and it's never happened to me throughout the last 8 months or so.

Your phone does get tremendously hot when wirelessly charging though, so I recommend still charging with a cable to save the battery somewhat.
[Realme C3 Questions & Answers] JoseDLHB75:
El problema comenzó cuando usó la aplicación de conmutador 4G que tenía el botón para permitir el dsds y lo desactivó.

¿Qué puedo hacer? No consigo el botón para activar mi segunda SIM

mi celular es un realme c33

Mod Edit: English Translation Below

The problem started when using the 4G switcher app that had the button to enable dsds and disabled it.

What can I do? I can't get the button to activate my second SIM

my cell phone is a realme c33
[Realme C3 Questions & Answers] xXx yYy:
OP translated to ENGLISH

The problem started when using the 4G switcher app that had the button to enable dsds and disabled it.

What can I do? I can't get the button to activate my second SIM

my cell phone is a realme c33
[Realme C3 Questions & Answers] shadowstep:
@JoseDLHB75

Spoiler content hidden.

Spoiler content hidden.
[Android Q&A, Help & Troubleshooting] citroenc53!:
Hello to all,

I am looking for a theme and trying to find it, I am posting a preview image, does anyone know it's name and how to find it?

Many thanksView attachment 5930079
[8525, TyTN, MDA Vario II, JasJam General] fgarcia90:
I have a new htc but cames from my motherinlaw with many contacts... how do I delete them to sinc with my ones?
[8525, TyTN, MDA Vario II, JasJam General] ultramag69:
Try the Kaiser forum, that Tytn II forum.
[OnePlus 9 Pro] Ostrich Man:
I'm using an app to see what I can run in the the terminal for pretty much no permissions to do so but I found out PS works and I get this.....

USER PID PPID VSZ RSS WCHAN ADDR S NAME

u0_a231 12132 9838 2154756 3628 __do_sys_rt_sigsuspend 0 S sh

u0_a231 12134 12132 2226960 4976 0 0 R ps

Is the first one about malware or could it be used to remote control the phone?

Ty
[Redmi Note 11 Pro+ 5G (peux)/POCO X4 Pro 5G (veux)] serpico_as:
Hello every one,

I can't connect my phone with USB to share files anymore.

Not sure when/what happened.

I've installed a custom rom on my note 11 pro 5g (veux) and deleted some bloatwares and natives apps i though useless. I think it still worked after that.

Recently, i had to format and reinstall windows 11.

And now i can't connect. I can't guess if it's a driver problem or if i've deleted an essential app.

When i connect with ADB AppControl, the phone is recognized, but i don't have the list of removed app.

Without ADB, the phone is also recognized by windows, but the "redmi" folder doesn't show up on my pc...

Any tips what i could try ?

Besides reinstalling the ROM ?

(sorry for my english)

Thanks

And, of course, the debugging mode is activated

i don't think it's a driver probleme, because i've never needed a driver to connect the phone, although i've intalled "xiaomi driver" even if i don't really know why or what is it for
[Redmi Note 11 Pro+ 5G (peux)/POCO X4 Pro 5G (veux)] Bustero84:
Just install Media Feature Pack for windows, from microsoft site or add this package in windows/settings
[Redmi Note 11 Pro+ 5G (peux)/POCO X4 Pro 5G (veux)] serpico_as:
Hello Bustero84,

Thanks for the tips. But it didn't work.

I couldn't find it in the settings, so i downloaded it. No effect

I've been able to connect a friends phone. I guess i've messes up with the bloatware removal...

Looks like i'll have to start all over again.

Does someone knows how i can save the settings and the files in order to reload them directly after reset ?
[Introductions] serpico_as:
Hello every one,

Glad to introduce myself.

36 yo living in south of france.

Learning and playing with my phone, trying to get the best out of it without giving too much data to the big companies...
[Google Pixel 4 XL Questions & Answers] killahax:
Trying to play Pokemon go on my pixel 4xl. It crashes to much ram is the issue. What is the best debloat rom/kernal to use so I have 4gb ram free of 6gb. the IOS is taking up way to much ram and bloated software as well.

I have twrp installed, magisk 25.2,
[General Topics] Skyica:
Introduction to my app reviews on the XDA forum

This is the first of a series of such comprehensive app review threads that I have planned (the others will probably be shorter however).

While I will publish the reviews later in other places also (like my website and medium.com), I have decided to publish them here first in the hope of getting suggestions for improvement from many interested people, and maybe from the developers of the apps also.

Introduction to this review of calculator apps

In this article, I will attempt to find, evaluate, and compare the best advanced calculator apps for Android, as comprehensively and objectively as possible.

I also include high-quality “basic” scientific calculator apps with features like scientific constants, units, and base-n calculation. Further, I include advanced "learning calculators" like Photomath, but I evaluate only their ability to solve mathematical problems, not their pedagogical value.

I hope the article will be helpful to anyone who wants to do more complicated calculations on Android devices, and also to the developers of the calculator apps, and to programmers considering the development of another calculator app.

I decided to write it because there are now many good and useful advanced calculator apps for Android, but not one thorough review (at least I couldn’t find one). While there are many “reviews” of the best such apps on the web, those lack

systematic search for available apps,

thorough tests of the apps,

comparison of features,

comparison of data from Google Play,

examination of other reviews.

Accordingly, they do not provide an objective overview of the best apps. Also, they seem to be written mostly by people with no special love for math and programming.

While I am myself not a mathematician, I have studied mathematical physics and computer science (PhD), and have developed complex Android apps (an advanced 3D modeling app, and

App Finder

, a sophisticated search engine for apps on Google Play, which I have used for this review).

Please note that this is a VERY long and detailed review. If you just want to know what the best calculator apps are, you may directly read

my recommendations here

.

If you are mainly interested in this as an example for the usage of App Finder, you may just read the

section about the searches

.

A shortened version of the review is

available at Medium

.

If you are new to this forum, please note that you can change the style from dark to light via the "XDA-Dark" button at the very bottom of the page. Also, you can hide the left pane using the three-line button top left.

If you like this article, please read the post at the bottom of this page.
[General Topics] Skyica:
Casio fx-CG500 / ClassPad Emulator​

View attachment 5931449

This emulator of Casio’s flagship CAS calculator is clearly one of the most comprehensive and powerful calculator apps.

However, it greatly suffer from emulation related problems, e.g.

Graphs cannot be navigated with multitouch and are low-resolution.

Input of expressions is very inconvenient since the physical keyboard is not emulated, and one has to switch between different virtual keyboards often, which requires much tapping, and the keys are very small on phones.

HP Prime Emulator​

View attachment 5931437

View attachment 5931439

This emulator of HP’s flagship CAS calculator is not quite as comprehensive and powerful as Casio’s.

It shares with it most of the emulation-related problems like low resolution. While it supports multi-touch and the hardware keyboard is emulated, the display area is much smaller than Casio’s.
[General Topics] Skyica:
Desmos Graphing Calculator​

View attachment 5930539

This app stands out with very good 2D graphing and “flexible” regression.

However, it has no 3D graphing and no advanced calculation functionality (Desmos Scientific Calculator also has no advanced calculation functionality).

Good Navigation is intuitive and very smooth.

Feature Animation of parameter variables with sliders.

Feature Regression is not limited to fixed functions as in most other calculators. E.g., for a logarithmic model, not only the function y = a+b*ln(x) can be used, but additional parameters can be used, e.g., y = a+b*ln(x-c).

Feature Also available for iOS and as web interface. Documents from one device can be saved to the cloud and opened on another.

It is very easy to use and has a good user guide.

View attachment 5930691

Grapher – Equation Plotter​

View attachment 5931707

View attachment 5931709

This is a good 2D and 3D graphing app, however it has important disadvantages against, for example, GeoGebra and the app by Philip Stephens, e.g.

No “textbook notation”, and no keys for functions like sin(), they must be typed letter by letter

No implicit surfaces

When navigating in 3D, the graphs are updated only after the fingers are lifted

Feature It can draw complex functions using domain-coloring. Also, it can draw both real and complex parts for functions of a real variable.

Visual Math 4D​

View attachment 5931713

View attachment 5931455

This app can produce beautiful 3D graphs, however it has important disadvantages against GeoGebra and the app by Philip Stephens, e.g.

Variable ranges cannot be changed by touch-navigation

Implicit surfaces are not reliably drawn, the algorithm seems not to adapt to the selected variable ranges

Feature It can draw 3D vector fields.

Graphing Calculator 3D​

View attachment 5931459

View attachment 5931461

This is a 3D graphing app under development. It cannot currently be recommended because e.g.

Variable ranges cannot be changed by touch-navigation

Only one graph can be drawn at a time

Problems with Implicit surfaces

For complex plots, only one component is drawn at a time

No “textbook notation”, and no keys for functions like sin(), they must be typed letter by letter
[General Topics] Skyica:
CAS Answer Engines

WolframAlpha​

View attachment 5930541

This app stands out with exceptional calculation capabilities and the possibility to show in-depth information on mathematical (and other) definitions, concepts, and data.

Intermediate calculation steps can often be shown.

Graphing is very limited but still useful.

The user interface is unique in that natural language can often be used to input problems.

View attachment 5930695 View attachment 5930697 View attachment 5930699

Numeric and symbolic calculation​

Symbolic computation essentials

Feature Factorization and expansion

Feature Assumptions

Equation solving:

Feature Equation systems

Feature Specification of variable ranges

Feature Inequalities

Differentiation and integration

Good Very difficult integrals can be calculated. If the result involves special functions, these can be defined

Other calculus and analysis:

BUG Finding minima and maxima: For some (even easy) problems, it returns not all solutions, e.g., for minimize sin(1/x), it returns x = -2/(277pi)

Feature Taylor expansion

Feature Differential equations solving

Matrices and vectors:

Feature Vector calculus

Statistics and probability:

Feature Histograms and box plots

Feature Confidence intervals calculations

Feature Many statistical tests

Feature Many probability distribution calculations

2D and 3D graphing​

Graph types:

Implicit plots, but more complicated implicit surfaces like 4*(x^2+y^2+z^2)+16*x*y*z = 1 (Cayley's cubic surface) cannot be drawn

Feature Complex plots, but not with domain-coloring

Display

Bad Plots are quite small and cannot be enlarged

Missing Navigation

Missing Analysis

Environment and user interface​

Bad Internet connection always required

Good Nevertheless, results appear very fast

Missing Values cannot be saved to variables

Feature Intermediate calculation steps

Input and output:

Missing No input in textbook notation (however the web interface at wolframalpha.com has this possibility).

Missing No undo/redo

Feature Quick info

Adaption and customization:

Missing No dark theme

Documentation and source​

User guide seems not necessary

Feature Very many useful examples
[General Topics] Skyica:
Advanced Learning Calculators

Please note that as I said in the introduction, I evaluate also these apps only for their ability to efficiently solve mathematical problems, not for their pedagogical values.

Symbolab​

View attachment 5930543

This app stands out with powerful symbolic computation and an easy-to-use and quite efficient interface.

Equation solving seems to work well, and many difficult integral can be calculated.

Intermediate calculation steps can often be shown.

3D graphing is missing and 2D graphing very limited and buggy.

View attachment 5930701 View attachment 5930703

Numeric and symbolic calculation​

Missing Polar coordinates for complex numbers seem not to be supported

Symbolic computation essentials:

Feature Factorization and expansion

Equation solving:

Bad Some simple equations cannot be solved, e.g. sin(x) = x/2.

Good Apart from some cases (see above), equation solving seems to work very well, also for periodic functions

Feature Equation systems

Feature Inequalities

Differentiation and integration:

Good Symbolic integration seems to be powerful, quite complicated elementary and nonelementary Integrals can be solved.

(the complicated integral of x/(1+sin(x)) is not well simplified)

Other calculus and analysis:

Bad Minima and maxima often cannot be calculated, e.g. for sin(1/x)

Missing For infinite sums, it only returns if it converges, not the value, e.g. for 1/n².

Feature Taylor expansion

Feature Differential equation solving

Missing No random numbers and prime factorization

Statistics and probability:

Missing Only one-variable statistics, no data editor

Missing Regression

Missing No Scientific constants and unit conversion

2D and 3D graphing​

Missing No 3D graphing.

Missing Most important 2D graphing features are missing. Graphs are not always correctly drawn (try sin(1/x)). Navigation is juddery and inconvenient. Input of functions in the list does not work well.

There is also a separate app called Symbolab Graphing Calculator, but it does not work better.

Environment and user interface​

Bad Internet connection always required

Good Nevertheless, results appear very fast

Missing Values cannot be saved to variables

Feature Intermediate calculation steps

Input and output:

The keyboard is quite well designed for phones and leaves a large area for the display. The fly-out keys work well.

Missing No copy and paste

Missing No undo/redo

Feature There is also an iOS app and a web interface. Problems can be synced across devices.

Adaption and customization:

Missing Display text size not adjustable

Documentation and source​

Missing No complete user guide

Feature Very many useful examples
[General Topics] Skyica:
Maple Calculator​

View attachment 5930547

This app stands out with powerful symbolic computation and an easy-to-use and quite efficient interface.

Complicated integrals can be calculated, but there are sometimes problems with simplification. There are significant bugs and problems with equation solving. No calculation of minima and maxima.

Intermediate calculation steps can often be shown.

Graphing is very limited but still useful.

View attachment 5930769

Numeric and symbolic calculation​

Symbolic computation essentials

Bad Expressions are not always displayed in the simplest form, e.g., for 2x^2=pi, it shows the positive solution as √(2)√(pi)/2 instead of √(pi/2) (although in the solution steps, it shows ±√(pi/2) as “intermediate step”)

Equation solving:

BUG Equations involving periodic functions are not correctly solved, e.g., for sin(x)=1/2, only one solutions is shown (i.e., not even all solutions between 0 and pi are shown), for sin(1/x)=0, it shows the empty set as solution

Feature Equation systems

Feature Inequalities

Differentiation and integration:

Good Powerful symbolic integration, nonelementary integrals can be solved with special functions, but no further information is given and no graph is shown. There are sometimes problems with simplification, e.g. for x/(1+sin(x)).

Other calculus and analysis:

Missing No minima and maxima finding

Feature Differential equation solving

Missing No base-n calculation

Missing No random numbers and prime factorization

Statistics and probability:

Missing No data editor

Missing No regression

Missing No scientific constants and unit conversion

2D and 3D Graphing​

Missing Only one 3D graph can be drawn at a time (in 2D, multiple functions must be entered in a vector)

Graph types:

Missing No polar plots, not parametric plots

Display

Missing No custom colors

Navigation

Missing Ratio of axes scale is set by the app and cannot be changed

Missing 3D: No complete navigation, graphs are drawn in a fixed variable range that cannot be adjusted

Missing No analysis features

Environment and user interface​

Bad Internet connection required for most calculations. Even for the simplest problems, it takes about 1 second until the results are shown, sometimes a bit longer.

Missing Values cannot be saved to variables

Feature Intermediate calculation steps

Input and output:

Good The keyboard is well designed for phones. It is quite efficient to use while leaving a large area for the display.

Missing No copy and paste (although there is a special mechanism to select parts of expressions)

Feature Automatic calculation without enter, even graphs are shown and updated automatically.

Feature Quick Info

Missing No history

Bad When the app is closed, previous calculation is not restored

Feature Calculations can be copied to desktop Maple (did not test this)

Adaption and customization:

Missing Text size cannot be adjusted

Missing No dark mode

Bad Sometimes the app enters fullscreen mode for no reason

Documentation and source​

Missing No user guide, just a FAQ that cannot be searched
[General Topics] Skyica:
Photomath, ​

View attachment 5931471

Mathway, ​

View attachment 5931473

Microsoft Math Solver​

View attachment 5931475

These apps are similar to Symbolab and Maple Calculator (they also recognize problems from photos and show step-by-step solutions), however their calculation capabilities seem to be more limited, as the following comparison shows.

Symbolab	Maple	Photomath	Mathway	Microsoft
solve sin(1/x) = 0	correct not simplified	wrong (empty set)	x	x	correct
solve ln(x) = -x	correct	correct	x	correct	x
solve sin(x) = x/2	x	only 1 solution	x	correct	x
solve ln(x*y) = y*ln( y) for x	correct	correct not simplified	x	correct not simplified	correct
integrate (e^x+1)/(e^x-1)	correct	correct not simplified	correct	x	x
integrate x/ln(x)	correct	correct	x	x	x
integrate 1/(1+sin(x))	correct	correct	correct	x	correct
integrate x/(1+sin(x))	correct not simplified	correct not simplified	x	x	x

HiEdu Scientific Calculator,​

View attachment 5931481View attachment 5931483

Scientific Calculator He-580​

View attachment 5931485

View attachment 5931487

These apps may be good for learning math, however their capabilities are very limited, e.g.:

No symbolic computation

The equation solver can only give one solution

Graphing is limited to simple polynomials

Also, they hide status bar and action bar, and there seems no way to show them permanently.
[General Topics] Skyica:
reserved
[General Topics] Skyica:
If this review was helpful to you, I would appreciate it if you checked out

App Finder

.

The review was in this form only possible with it, and it will enable the creation of comprehensive reviews of other kinds of apps, by me or by other people.

Further, App Finder can help anyone to find Android apps with specific features easy, fast, and reliably, as is

shown here

. This will also help the developers of innovative high-quality apps that are not yet very popular.

Thank you!
[General Topics] mastar blastar:
excellent work! you have summed up in this thread what i've been able to uncover over many years of searching and there are some calculators in this guide that i have not come across in my searches.

there is no need to hope for this to be the ultimate guide to android calculator apps dare i say it, this is THE ultimate guide to calculator apps! please keep up the great work on this guide.
[General Topics] Skyica:
I have now made further important additions and improvements.

I think I’m finished with it for now.

However, I will be very grateful for any suggestions for corrections, improvements, and additions!
[General Topics] Skyica:
Some further changes and additions have been necessary.
[General Topics] Skyica:
After a discussion with the developer, I have now written a new review for TechCalc and included it in the recommendations.
[General Topics] Skyica:
I have now corrected mistakes in the review of Graphing Calculator + Math.
[General Topics] leonelhs:
Amazing job.

This is the best comparative review that's I ever have seen.

As an Xcas Pad developer I will take this research as reference for new releases and enhancements, it clarifies very well where Apps are in their related universe.

Amend:

Xcas Pad is an open source project hosted at GitHub Xcas Pad, you can help the development just given it a ⭐
[General Topics] Skyica:
@leonelhs I have now added a screenshot for Xcas Pad and also improved the review a bit.
[General Topics] Skyica:
A shortened version of the review is now

available at Medium

.
[General Topics] QerterYY:
Great news! As a student writing a term paper, your tool is handy. With such a calculator, it would be easy to do the maths, but I'm worried about writing my part of my paper. Friends advised me to contact https://edubirdie.com/do-my-math-homework to make the work perfect, and I think I will do that. This is a critical moment for me, so I hope the result will be worthy. Thanks again for your work.
[General Topics] Silly22:
Wow! What a terrific comprehensive comparison and review of calculator apps. If only every type of comparative review went into this level of detail.

I've used AppBrain in the past and it's really not great anymore so I will try out your App Finder software from Play Store
[General Topics] Skyica:
Thanks for your comment. I hope that some people will use App Finder for comprehensive reviews of other apps.
[General Topics] Skyica:
CalcTastic was just updated with important improvement. I've changed the review accordingly. It may now be a real alternative to ChampCalc.