Engineer prompts like software.
A native iOS studio for building, testing, and shipping AI prompts. Versioning, evaluations, multi-provider — all on your device, all yours.
The problem
Your best prompts live in a Notes app, a Slack thread, and a forgotten ChatGPT conversation. When you tweak one, the old version is gone. When you switch models, you start from scratch. When someone asks "did that change make it better?" — you eyeball it.
Prompts are infrastructure now. They deserve the tools that infrastructure gets.
The solution
PromptOps treats prompts like code. Every edit creates a new version. Every version can be tested against a dataset. Every supported model is one tap away.
It runs natively on iOS 26, stores everything on your device, and uses your own API keys — so the people who built it (us) literally cannot see what you're working on.
What you get
Everything a serious prompt workflow needs, packed into a phone-shaped IDE.
Multi-provider, one workflow
OpenAI, Anthropic, Google Gemini, xAI, Ollama, and any OpenAI-compatible endpoint. Compare outputs side by side without rewriting your prompt.
Version every change
Draft, publish, deprecate, roll back. A full version history per prompt. Never overwrite a prompt that was working.
Test before you ship
Datasets, rule-based and model-graded evaluators, suite runs with pass rates and scores. Know if a change moved the needle, with numbers.
Variables with guardrails
{{variable}} placeholders with required fields, min/max length, regex patterns, and enum validation. Catch bugs before they hit production.
17 production templates
Vision, tool-use, code generation, structured extraction, summarization, classification, agent loops. Start from patterns that already work.
Sync your way
Push to a GitHub repo for code-style review workflows, or sync to iCloud Drive for a personal backup. Your repo, your iCloud, your control.
Privacy by design
No backend. No analytics. No telemetry. Prompts go directly from your device to the provider you chose. We have no way to see them.
Built for iOS 26
Liquid Glass chrome, SwiftUI throughout, instant cold start, full Dynamic Type and VoiceOver support. Native, not a wrapper.
How it works
Four steps from blank prompt to production-ready output.
Design
Start from a template or a blank prompt. Add variables. Pick a model.
Test
Run it. Tweak it. Save versions as you go. Compare outputs across providers in seconds.
Evaluate
Build a test dataset. Attach evaluators. Run the suite. See pass rates per version.
Ship
Publish the version that works. Sync to GitHub. Use it in your app.
Built for
- Developers integrating LLMs into production apps
- Prompt engineers iterating on prompts that need to actually work
- Product teams experimenting with AI features before committing
- Researchers benchmarking models on their own data
- Anyone tired of pasting prompts between tabs
Why people pick PromptOps
- Bring your own key. No markup, no subscription on top of your provider bill. Pay OpenAI or Anthropic directly, at their rates.
- No lock-in. Export the full database to JSON anytime. Sync to a GitHub repo you own. Take everything with you.
- No backend means no breach. There is nothing to compromise on a server because there is no server.
- Native, not a wrapper. Built specifically for iOS, not a port of a web app.
Privacy that's not a marketing line
PromptOps has no backend. No account system. No analytics SDK. When you execute a prompt, your iPhone makes the API call directly to the provider. We didn't just promise we wouldn't see your data — we built it impossible to see.
Ready to engineer your prompts?
Coming soon to the App Store. Questions or beta interest:
abriggs@riteupai.com