head to head · open source
room-assistant vs waterius
room-assistant has 1,350 GitHub stars, 125 forks, 76 open issues and last shipped yesterday. waterius has 679 stars, 118 forks, 51 open issues and last shipped yesterday. room-assistant leads on adoption by 99% (1,350 vs 679 stars). room-assistant is written in TypeScript under MIT; waterius is written in C++ under LGPL-3.0. room-assistant has attracted 9% as many forks as stars, waterius 17%. waterius was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (smart-home), 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
| room-assistant | waterius | |
|---|---|---|
| GitHub stars | ★ 1.4K | ★ 679 |
| License | MIT | LGPL-3.0 |
| Written in | TypeScript | C++ |
| Last push | 2026-09-30 | 2026-09-30 |
| Forks | ⑂ 125 | ⑂ 118 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick room-assistant if
- You weight community size — 1.4K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick waterius if
- You want the waterius feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches C++
- You evaluated both and waterius fits your workflow better
About room-assistant
room assistant is an MIT licensed, TypeScript based tool that brings presence detection and room level occupancy tracking to home automation, aimed at self hosters and smart home tinkerers who want automations keyed to which room a person is actually in.
read the full room-assistant overview →
About waterius
Waterius (Ватериус) is an open source Wi Fi transmitter that reads the pulse output of water, gas, heat and electricity meters and forwards the readings over HTTP or MQTT to smart home platforms, MQTT brokers or the waterius.ru service — it is aimed at homeowners and DIY makers who want automatic meter reading without replacing the meters they already have.
read the full waterius overview →
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Frequently asked questions
Is room-assistant or waterius more popular?
room-assistant has 1,350 GitHub stars and waterius has 679. room-assistant has the larger community by that measure.
Are room-assistant and waterius free?
Both are open source. room-assistant is licensed under MIT and waterius under LGPL-3.0. Neither carries a licence fee.
What is the difference between room-assistant and waterius?
room-assistant is written in TypeScript and waterius in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, room-assistant or waterius?
Choose room-assistant if you want the larger community (1,350 stars) or its MIT licence terms. Choose waterius if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.