head to head · open source
espectre vs android
espectre has 9,388 GitHub stars, 709 forks, 13 open issues and last shipped yesterday. android has 3,912 stars, 1,068 forks, 458 open issues and last shipped yesterday. espectre leads on adoption by 140% (9,388 vs 3,912 stars). espectre is written in Python under GPL-3.0; android is written in Kotlin under Apache-2.0. espectre has attracted 8% as many forks as stars, android 27%. android was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (home-assistant), so they are genuine substitutes rather than adjacent tools.
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
| espectre | android | |
|---|---|---|
| GitHub stars | ★ 9.4K | ★ 3.9K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Python | Kotlin |
| Last push | 2026-09-21 | 2026-09-21 |
| Forks | ⑂ 709 | ⑂ 1.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick espectre if
- You weight community size — 9.4K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick android if
- You want the android feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Kotlin
- You evaluated both and android fits your workflow better
About espectre
ESPectre is an open source Wi Fi CSI motion sensing platform that turns a supported ESP32 board into a private, local motion sensor reporting movement in real time, and it is built for embedded developers, Home Assistant users, and DIY builders who want room level sensing without cameras, microphones, wearables, or dedicated radar hardware.
read the full espectre overview →
About android
The Home Assistant Companion for Android is the official Android application for Home Assistant, an open source home automation platform. It is written in Kotlin, released under the Apache 2.0 license, and distributed as an open source app for Android devices. The project sits inside the Home Assistant ecosystem and connects a mobile client to a user's Home Assistant instance.
read the full android overview →
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Frequently asked questions
Is espectre or android more popular?
espectre has 9,388 GitHub stars and android has 3,912. espectre has the larger community by that measure.
Are espectre and android free?
Both are open source. espectre is licensed under GPL-3.0 and android under Apache-2.0. Neither carries a licence fee.
What is the difference between espectre and android?
espectre is written in Python and android 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, espectre or android?
Choose espectre if you want the larger community (9,388 stars) or its GPL-3.0 licence terms. Choose android if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.