
F-Droid
Aurora Store
Obtainium
Aptoide
APKMirror
OpenAPK
APK Pure
This is a repository of apps to be used with F-Droid.

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, IzzyOnDroid seems to be more popular. It has been mentioned 13 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | apt.izzysoft.de | diffyn.com |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of IzzyOnDroid yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing IzzyOnDroid and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Share your experience with using IzzyOnDroid and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Yes, essentially. I do have the Guardian Project repository and I get a handful of applications from the Play Store (via Aurora Store), but everything else comes from F-Droid. If you want even more, you can add the IzzyOnDroid... - Source: Hacker News / 10 days ago
As also pointed out in a sibling thread, there's https://apt.izzysoft.de/fdroid/ though, which is somebody's curated collection of apps with Github releases in the form of an F-Droid repository. - Source: Hacker News / over 1 year ago
Some FLOSS apps not available in the official F-Droid repo are hosted in IzzyOnDroid repo, compatible with all F-Droid clients. Source: over 3 years ago
Tracking Diffyn since Jun 2025.
When comparing IzzyOnDroid and Diffyn, you can also consider the following products.

F-Droid is an interesting alternative for Android users who want to try something different and not have to use the Goole Play store all the time.
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Aurora is a FOSS Play Store client that does not require a Google Account to download directly from Play Store. However you can login with your Google Account to download your already paid apps!
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Get Android App Updates Directly From the Source.
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Aptoide is a third party replacement for the traditional Google Play Store.
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Download free open-source apps in APK format for Android that are safe and respects privacy. Sourced from GitHub, GitLab and beyond.
Compare OpenAPK to IzzyOnDroid or Diffyn: