head to head · open source
Prometheus vs GRDB.swift
Prometheus has 66,109 GitHub stars, 10,839 forks, 890 open issues and last shipped 2 days ago. GRDB.swift has 8,650 stars, 1,046 forks, 15 open issues and last shipped 4 days ago. Prometheus leads on adoption by 664% (66,109 vs 8,650 stars). Prometheus is written in Go under Apache-2.0; GRDB.swift is written in Swift under MIT. Prometheus has attracted 16% as many forks as stars, GRDB.swift 12%. Prometheus 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
| Prometheus | GRDB.swift | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 8.7K |
| License | Apache-2.0 | MIT |
| Written in | Go | Swift |
| Last push | 2026-09-17 | 2026-09-15 |
| Forks | ⑂ 11K | ⑂ 1.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prometheus if
- You weight community size — 66K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick GRDB.swift if
- You want the GRDB.swift feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Swift
- You evaluated both and GRDB.swift fits your workflow better
About Prometheus
Prometheus is an open source monitoring system and time series database, part of the Cloud Native Computing Foundation ecosystem. It collects metrics from configured targets at defined intervals, evaluates alerting rules, and visualizes results. Designed for reliability in dynamic environments, it operates without reliance on distributed storage, ensuring each server node functions independently.
read the full Prometheus overview →
About GRDB.swift
GRDB.swift is an MIT licensed Swift toolkit for SQLite databases, focused on application development, for Swift developers who need to store an app's permanent data on iOS, macOS, tvOS, or watchOS without hand writing SQL and raw row handling.
read the full GRDB.swift overview →
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Frequently asked questions
Is Prometheus or GRDB.swift more popular?
Prometheus has 66,109 GitHub stars and GRDB.swift has 8,650. Prometheus has the larger community by that measure.
Are Prometheus and GRDB.swift free?
Both are open source. Prometheus is licensed under Apache-2.0 and GRDB.swift under MIT. Neither carries a licence fee.
What is the difference between Prometheus and GRDB.swift?
Prometheus is written in Go and GRDB.swift in Swift. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Prometheus or GRDB.swift?
Choose Prometheus if you want the larger community (66,109 stars) or its Apache-2.0 licence terms. Choose GRDB.swift if its feature set, stack or MIT licence fits better. Both are self-hostable.