Flex vs SparkyFitness
Comparing two open source alternatives to Hevy. Use the comparison below to decide which one fits your needs.
Flex
MITOffline-first workout tracker for strength training and cardio with progress graphs, background rest timers and a local database.
SparkyFitness
Source-AvailableSelf-hosted fitness and health tracker for meals, workouts, water, sleep and body metrics, with family sharing and optional AI coaching.
Side-by-side comparison
| Flex | SparkyFitness | |
|---|---|---|
| License | MIT | Source-Available |
| Self-hostable | No | Yes |
| GitHub Stars | 453 | 6,619 |
| Forks | 50 | 451 |
| Open Issues | 4 | 206 |
| Last Commit | Nov 1, 2026 | Oct 31, 2026 |
| First Released | Feb 26, 2024 | Jun 21, 2025 |
| Categories | ||
| Tags |
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