head to head · open source
koreader vs gradle-play-publisher
koreader has 29,761 GitHub stars, 1,908 forks, 1,345 open issues and last shipped yesterday. gradle-play-publisher has 4,317 stars, 349 forks, 22 open issues and last shipped 23 days ago. koreader leads on adoption by 589% (29,761 vs 4,317 stars). koreader is written in Lua under AGPL-3.0; gradle-play-publisher is written in Kotlin under MIT. koreader has attracted 6% as many forks as stars, gradle-play-publisher 8%. koreader was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| koreader | gradle-play-publisher | |
|---|---|---|
| GitHub stars | ★ 30K | ★ 4.3K |
| License | AGPL-3.0 | MIT |
| Written in | Lua | Kotlin |
| Last push | 2026-09-17 | 2026-08-26 |
| Forks | ⑂ 1.9K | ⑂ 349 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick koreader if
- You weight community size — 30K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Lua
- You value the larger contributor base for long-term maintenance
pick gradle-play-publisher if
- You want the gradle-play-publisher feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Kotlin
- You evaluated both and gradle-play-publisher fits your workflow better
About koreader
KOReader is a free, AGPL 3.0 licensed document viewer written in Lua that runs on e ink readers from Cervantes, Kindle, Kobo and PocketBook, on reMarkable, and on Android and desktop Linux, aimed at readers who want broader format support, finer typesetting control and better performance than the reading software shipped with their device.
read the full koreader overview →
About gradle-play-publisher
Gradle Play Publisher is an unofficial release automation Gradle plugin for Android applications. It connects Gradle tasks to the Google Play Developer API through a service account. The plugin is written in Kotlin and distributed under the MIT license.
read the full gradle-play-publisher overview →
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Frequently asked questions
Is koreader or gradle-play-publisher more popular?
koreader has 29,761 GitHub stars and gradle-play-publisher has 4,317. koreader has the larger community by that measure.
Are koreader and gradle-play-publisher free?
Both are open source. koreader is licensed under AGPL-3.0 and gradle-play-publisher under MIT. Neither carries a licence fee.
What is the difference between koreader and gradle-play-publisher?
koreader is written in Lua and gradle-play-publisher in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, koreader or gradle-play-publisher?
Choose koreader if you want the larger community (29,761 stars) or its AGPL-3.0 licence terms. Choose gradle-play-publisher if its feature set, stack or MIT licence fits better. Both are self-hostable.