Comparison
Looking for a Promptist alternative that's actually private? Sapa runs 100% on your Mac — no cloud account, no subscription, no prompts sent anywhere.
Download Sapa — FreemacOS 26.1 Tahoe · Apple Silicon · ~6.3 MB · No account required
| Feature |
|
Promptist |
|---|---|---|
| Price | Free — forever | Free tier limited; paid plans |
| Processing | 100% on-device (MLX) | Cloud-based |
| Prompts sent to server | Never | Yes — required |
| Account required | No | Yes |
| Works offline | Yes | No |
| Token reduction | ~38% average | Varies |
| Security scan | Yes — API keys, PII, injection | No |
| System-wide overlay | Yes — any macOS app | Browser extension only |
| Platform | macOS (Apple Silicon) | Web / browser |
| Local analytics | Yes — SQLite on device | Dashboard in cloud |
Yes. Sapa is completely free and runs 100% locally on macOS Apple Silicon. No subscription, no account, no data sent to any server.
Promptist is a web-based tool that sends your prompts to a cloud server. Sapa runs a fine-tuned model entirely on your Mac using Apple's MLX framework — your prompts never leave your device.
Yes. After the initial model download (~6 GB, one time), Sapa works with no internet connection — on flights, in secure environments, and fully air-gapped setups.
Yes. Sapa achieves an average 38% token reduction using a fine-tuned MLX model. Unlike cloud tools, optimisation happens on-device — no network latency, no privacy risk.
macOS 26.1 · Apple Silicon · ~6.3 MB · No account