[Android Apps and Games] GalaxyA325G:
Agree with your approach as we've seen this happen to PulseSMS, Nova, and others where I keep a set of "last known good version" on my PC to slide over to Android whenever I set up a new device.

What I did immediately upon hearing the news was compile this listing of the last 18 known good versions of SimpleMobileTools' tools which others can make use of.

I tried to find ALL the SimpleMobileTools tools

Please let me know if I missed any

The order below is the order presented in GitHub

Which was where the original named list came from

Simple-App-Launcher com.simplemobiletools.applauncher_53.apk

A simple holder for favourite apps for quick & easy app launcher icon management

https://f-droid.org/en/packages/com.simplemobiletools.applauncher/

Version 5.11.4 (53) Added on 2023-09-12

https://f-droid.org/repo/com.simplemobiletools.applauncher_53.apk

SHA256 hash of com.simplemobiletools.applauncher_53.apk:

6a470ed5e39fb20add8a9c6d03f5a792a89e3c28b2bf05dc85a88ea4e5053c46

Simple-Launcher com.simplemobiletools.launcher_10.apk

A practical and customizable launcher for launching your favorite apps easily.

https://f-droid.org/en/packages/com.simplemobiletools.launcher/

Version 5.1.1 (10) Added on 2023-09-30

https://f-droid.org/repo/com.simplemobiletools.launcher_10.apk

SHA256 hash of com.simplemobiletools.launcher_10.apk:

0c25285a24a4449b63bd190d66522709461334160870c7e7951bf9438d9d898c

Simple-Calendar com.simplemobiletools.calendar.pro_240.apk

A simple calendar with events, tasks, customizable colors, widgets and no ads.

https://f-droid.org/packages/com.simplemobiletools.calendar.pro/

Version 6.23.1 (240) Added on 2023-10-08

https://f-droid.org/repo/com.simplemobiletools.calendar.pro_240.apk

SHA256 hash of com.simplemobiletools.calendar.pro_240.apk:

4827a707d8d0e5b4594d322c55221f7c5587555857dc79bc9b7596dc9a717604

Simple-Dialer com.simplemobiletools.dialer_57.apk

A handy phone call manager with phonebook, number blocking and multi-SIM support

https://f-droid.org/packages/com.simplemobiletools.dialer/

Version 5.18.1 (57) Added on 2023-09-30

https://f-droid.org/repo/com.simplemobiletools.dialer_57.apk

SHA256 hash of com.simplemobiletools.dialer_57.apk:

31a47e479b90e2ca18a761e3d871c0d525cc4a1dc391707f2c83aaab3e0ffbde

Simple-Gallery com.simplemobiletools.gallery.pro_396.apk

A premium app for managing and editing your photos, videos, GIFs without ads

https://f-droid.org/packages/com.simplemobiletools.gallery.pro/

Version 6.28.1 (396) Added on 2023-10-12

https://f-droid.org/repo/com.simplemobiletools.gallery.pro_396.apk

SHA256 hash of com.simplemobiletools.gallery.pro_396.apk:

175f10c9ce4c6d5294ed20d61216d850df2c2b1928a846489a4cb372153d1607

Simple-Calculator com.simplemobiletools.calculator_61.apk

A calculator for quick simple calculations with a nice user interface and no ads

https://f-droid.org/packages/com.simplemobiletools.calculator/

Version 5.12.0 (61) Added on 2023-10-27

https://f-droid.org/repo/com.simplemobiletools.calculator_61.apk

SHA256 hash of com.simplemobiletools.calculator_61.apk:

13788d61eb7e6651e2eb87b655eea9019c723da2e0c8af6e6e17945b75a51800

Simple-Music-Player com.simplemobiletools.musicplayer_119.apk

A clean music player with a customizable widget, stylish interface and no ads.

https://f-droid.org/en/packages/com.simplemobiletools.musicplayer/

Version 5.18.3 (119) Added on 2023-10-20

https://f-droid.org/repo/com.simplemobiletools.musicplayer_119.apk

SHA256 hash of com.simplemobiletools.musicplayer_119.apk:

85fa19468ed7b92e4e806646735e86cba537f49ea3efdf19aec58718341717e9

Simple-Flashlight com.simplemobiletools.flashlight_66.apk

A simple modern flashlight with SOS, stroboscope & bright display, has no ads.

https://f-droid.org/packages/com.simplemobiletools.flashlight

Version 5.10.1 (66) Added on 2023-10-27

https://f-droid.org/repo/com.simplemobiletools.flashlight_66.apk

SHA256 hash of com.simplemobiletools.flashlight_66.apk:

b4cd07c40a3d5711461670a2f460a1447acf3836c0e90471b7ba5c8b4c2f9bb3

Simple-SMS-Messenger com.simplemobiletools.smsmessenger_85.apk

An easy and quick way of managing SMS and MMS messages without ads.

https://f-droid.org/packages/com.simplemobiletools.smsmessenger/

Version 5.19.3 (85) Added on 2023-10-10

https://f-droid.org/repo/com.simplemobiletools.smsmessenger_85.apk

SHA256 hash of com.simplemobiletools.smsmessenger_85.apk:

e134a0e330514de3716dbacfa08d39707ebbb2c9ebde8d08854e159b2cd7c2f4

Simple-Voice-Recorder com.simplemobiletools.voicerecorder_41.apk

An easy way of recording any discussion or sounds without ads or internet access

https://f-droid.org/en/packages/com.simplemobiletools.voicerecorder/

Version 5.12.3 (41) Added on 2023-10-27

https://f-droid.org/repo/com.simplemobiletools.voicerecorder_41.apk

SHA256 hash of com.simplemobiletools.voicerecorder_41.apk:

fdee1b38bb17eee38f37113be5ca269527ba5b4b65d1f4dbb7f0185e56bc96af

Simple-Camera com.simplemobiletools.camera_89.apk

Quick photo and video camera with a flash, customizable aspect ratio.

https://f-droid.org/packages/com.simplemobiletools.camera/

Version 6.16.1 (136) Added on 2023-09-30

https://f-droid.org/repo/com.simplemobiletools.camera_89.apk

SHA256 hash of com.simplemobiletools.camera_89.apk:

4693a4d524e70136ee6da3a92aaa3c7d2f9f46cd98d5693614b318804f4bc826

Simple-File-Manager com.simplemobiletools.filemanager.pro_136.apk

Easy app for managing your files without ads, respecting your privacy & security

https://f-droid.org/packages/com.simplemobiletools.filemanager.pro/

Version 5.7.2 (89) Added on 2023-09-25

https://f-droid.org/repo/com.simplemobiletools.filemanager.pro_136.apk

SHA256 hash of com.simplemobiletools.filemanager.pro_136.apk:

d071a2c3f263a2db106953d7d7b659401899f97fbf3ee404ebddac4ed6da75e3

Simple-Notes com.simplemobiletools.notes.pro_114.apk

A simple textfield for adding quick notes without ads.

https://f-droid.org/packages/com.simplemobiletools.notes.pro/

Version 6.17.0 (114) Added on 2023-09-25

https://f-droid.org/repo/com.simplemobiletools.notes.pro_114.apk

SHA256 hash of com.simplemobiletools.notes.pro_114.apk:

4d4b805f370c68a3bbd4dfebc808f65ecb9e07f01f3720abf7b39833f647cbaf

Simple-Keyboard com.simplemobiletools.keyboard_24.apk

Easy keyboard for inserting all kinds of texts, special characters and numbers.

https://f-droid.org/packages/com.simplemobiletools.keyboard/

Version 5.4.9 (24) Added on 2023-10-16

https://f-droid.org/repo/com.simplemobiletools.keyboard_24.apk

SHA256 hash of com.simplemobiletools.keyboard_24.apk:

4f97d3180725663cd8b875e6b878c06c13670595d8aea3dd08d86bfc2fc4ac1e

Simple-Contacts com.simplemobiletools.contacts.pro_107.apk

Easy and quick contact management with no ads, handles groups and favorites too.

https://f-droid.org/packages/com.simplemobiletools.contacts.pro/

Version 6.22.7 (107) Added on 2023-09-25

https://f-droid.org/repo/com.simplemobiletools.contacts.pro_107.apk

SHA256 hash of com.simplemobiletools.contacts.pro_107.apk:

e91b55a73bcb10b0c47e0a50d6b81816c151d2a0766b5202347d5c3b01c42738

Simple Contacts Pro SE de.ritscher.simplemobiletools.contacts.pro_108.apk

Extended version of Simple Contacts Pro that supports separate address fields

https://f-droid.org/packages/de.ritscher.simplemobiletools.contacts.pro/

Version 6.22.4.2 (108) Added on 2023-08-17

https://f-droid.org/repo/de.ritscher.simplemobiletools.contacts.pro_108.apk

SHA256 hash of de.ritscher.simplemobiletools.contacts.pro_108.apk:

a9528eb4601422c9ad298d0710d19b1ed8c320121b5a0e02db71193d77aa59f7

Simple-Clock com.simplemobiletools.clock_42.apk

Combination of a beautiful clock with widget, alarm, stopwatch & timer, no ads

https://f-droid.org/en/packages/com.simplemobiletools.clock/

Version 5.11.2 (42) Added on 2023-09-30

https://f-droid.org/repo/com.simplemobiletools.clock_42.apk

SHA256 hash of com.simplemobiletools.clock_42.apk:

fae515b24165cc9569b443792014ddf8065faab0c7ebdaddae821b62b7093591

Simple-Draw com.simplemobiletools.draw.pro_82.apk

A canvas you can draw on with different colors.

https://f-droid.org/en/packages/com.simplemobiletools.draw.pro/

Version 6.9.6 (82) Added on 2023-09-25

https://f-droid.org/repo/com.simplemobiletools.draw.pro_82.apk

SHA256 hash of com.simplemobiletools.draw.pro_82.apk:

d4d414bd9dc793fa24329019cf40782a2aa43bc4837585c223675c6fc654fa85

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Note that I compiled this listing from separate sources, starting with GitHub but then going to F-Droid to get the descriptions and the links and then I ran a hash on the downloaded results. Any errors in this listing are mine.