The UI thread seems to freeze randomly on Samsung phones. There is no particular identified sequence of events that cause the bug. It happens within 1-3 minutes of using the App.

How to reproduce

1. Pair the Sifir mobile app and cyphernode app and generate your keys
2. Navigate back and forth between screens, send and receive some Bitcoin
3. If the app does not freeze within 1-3 minutes, it won't .

Interesting observations

• The bug never hits while attached to a debugger. The moment debugging is enabled you can spend hours using the app and it will not freeze. I know, maximum troll level. Probably due to the fact that ReactNative runs Debuging sessions within chrome's V8: https://reactnative.dev/docs/javascript-environment.html#javascript-runtime

• If the UI freezes on a view with a Scroll or Text input component, the Scroll remains responsive to gestures and clicks, so does the Input, however everything else is frozen.

I've tried to debug this for weeks now, will wait for further feedback and move on to other issues.

Intuition

• After monitoring App logs and behavior, it seems to be triggered by Androids garbage collector. Why or how .. is a mystery.

F-Droid is application & app store for android apps (alternative to Google Play) that accepts only FLOSS (free/libre and open-source) apps and doesn't require any account creation/login in order to download apps.

The requirements for being included into f-droid are here: https://f-droid.org/en/docs/Inclusion_Policy/

The process for getting an app published to f-droid is outlined here: https://f-droid.org/en/docs/Inclusion_How-To/ https://gitlab.com/fdroid/rfp#submission-queue https://gitlab.com/fdroid/fdroiddata/blob/master/CONTRIBUTING.md

You can open a RFP (Request For Packaging) ticket here: https://gitlab.com/fdroid/rfp or an user can do so, provided you agree to include this app in F-droid (a comment to this issue is enough for it)

Some users don't have play-store on their devices as they are degoogled devices or don't create/use google account (using aurora store app https://auroraoss.com/ in anonymous mode (which is available on f-droid) is solution to still get apps from google-play) or using OS/custom ROMs that don't have it included, such as: (Some bundle f-droid by default)

https://grapheneos.org/ GrapheneOS
https://calyxos.org/ CalyxOS
https://lineageos.org/ LineageOS
https://lineage.microg.org/ LineageOS for microG
https://e.foundation/ /e/
https://www.replicant.us/ Replicant

Downloading APKs from official places like github releases https://github.com/Sifir-io/sifir-mobile-wallet/releases or website, or from unofficial sources like APK downloading sites https://apk.support or https://apkpure.com/ etc... will avoid the play-store/google dependency but it's lack automatic update mechanism unless it's built in into the application, F-Droid solve this.

Once the app is published into f-droid add the below image code into
README.md to show that the app available on f-droid:

[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="80">](https://f-droid.org/en/packages/org.fdroid.fdroid/)

F-Droid URL: https://f-droid.org/
F-Droid Wikipedia: https://www.wikipedia.org/wiki/F-Droid

Contribution/Submit Applications: https://f-droid.org/en/contribute/#submit-applications
Inclusion Policy: https://f-droid.org/en/docs/Inclusion_Policy
Request For Packaging Tickets: https://gitlab.com/fdroid/rfp/issues

Add .ipa file (iOS app) to the github releases as asset, which currently have only .apk file for android
https://github.com/Sifir-io/sifir-mobile-wallet/releases

For why publishing .ipa is needed see comment: https://gitlab.com/walletscrutiny/walletScrutinyCom/-/issues/149#note_575925220