Which AI models can I paste the output into?

Any. Plain text Prompt Packs work in ChatGPT, Claude, Gemini, Copilot, Midjourney, Grok, and any model accepting structured prompts.

What's in a Prompt Pack?

System prompt, developer instructions, operating rules, 3-5 few-shot examples, output schema, evaluation criteria, and a token budget recommendation.

What does the Pro tier add?

Unlimited daily runs, all 20 specialist agents, JSON/Markdown export, Vault access, and priority processing. Choose Monthly £4.99, Yearly £28.99, or one-time Lifetime £49.99. Add the SEO Blog Generator Pack for £24.99.

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Newv2.4.3 · twenty agents · fully on-device

Built with Apple Intelligence

Turn one sentence into a production prompt.

Twenty specialised agents analyse, engineer, assemble, and validate the pack for you — entirely on-device, in under two minutes.

Download on the App Store See the pipeline

100% on-device·5 phases·iOS 26+

MetaPromptLab running the twenty-agent pipeline on iPhone

Output

System prompt, developer rules, examples, schema, and scoring — ready to paste.

20 specialistsAbout 100 secondsNo cloud calls

Export to

ChatGPT·Claude·Gemini·Copilot·Midjourney·Grok·ChatGPT·Claude·Gemini·Copilot·Midjourney·Grok·ChatGPT·Claude·Gemini·Copilot·Midjourney·Grok·

How it works

Three steps. No prompt-sprawl.

Keep the idea brief. MetaPromptLab handles role design, context packing, structure, examples, and evaluation rules behind the scenes.

Pipeline summary

The app assembles a reusable pack, not a one-off paragraph. That means stronger output, easier iteration, and cleaner handoff between models.

~10s

Goal parsed

Describe the job.

Write one sentence: code review, growth teardown, landing-page rewrite, or a new system prompt.

~90s

20 agents complete

Let the agents work.

Twenty specialists break the prompt into analysis, engineering, structure, examples, and evaluation rules.

Instant

Prompt Pack ready

Ship the pack.

Copy a production-ready Prompt Pack with system prompt, developer rules, examples, output schema, and scorecard.

Pipeline

A pipeline of twenty specialists.

Every agent owns a small job. The handoff stays deterministic, local, and transparent enough to inspect.

Runtime

$ mpl run "code reviewer for python"
20 agents complete · quality score 92 · 13 validation gates passed
system + developer + examples + schema + evaluation criteria

Analyze

4 tasks

Intent, entities, tone, and structure are pulled apart before any wording gets locked in.

Intent analysisEntity extractionTone alignmentStructure optimisation

Engineer

3 tasks

The app defines role, context, few-shot angle, and model-facing instructions.

Persona designContext layeringFew-shot planning

Build

3 tasks

Constraints, format, token budget, and output schema become concrete deliverables.

Constraint builderOutput schemaIteration logic

Agents

Phases

Runtime

~100s

Cloud

0 calls

Quality

Every draft is tightened for redundancy, edge cases, and consistency.

Deliver

The final pack ships with validation rules you can reuse anywhere.

Screenshots

Designed around the iPhone flow.

Each screen is built to move you from raw request to reusable prompt, without detouring through settings, chat logs, or account scaffolding.

INPUT

One sentence becomes a full brief.

The Create tab pulls apart intent before it writes a single instruction.

01·of 05

RUNTIME

Five phases, about one hundred seconds.

Analyze, Engineer, Build, Quality, Deliver — sequenced locally on iPhone 15 Pro and newer.

02·of 05

PORTABLE

Export to any model.

Prompt Packs stay plain text, so they drop into ChatGPT, Claude, Gemini, Copilot, Grok, or Midjourney without cleanup.

03·of 05

PRIVATE

No accounts, no telemetry.

The privacy promise is architectural: Apple Intelligence handles the work on-device, with no server layer in the middle.

04·of 05

PRICING

Free to start, simple to upgrade.

Free covers 5 runs daily with 8 agents. Pro unlocks the full 20-agent pipeline, exports, and Vault access.

05·of 05

iPad

Designed for iPhone. Polished for iPad.

The same prompt-engineering flow expands into a calmer, desk-friendly workspace with more room for Vault, history, and multi-column review.

Multi-column vault

Shortcut-driven history

Optimised for iOS 26

Same private runtime

Privacy

Private by design.

The privacy promise is not a policy layer added after the fact. It is how the product is wired: local runtime, no accounts, no telemetry, no cloud relay.

Read the privacy commitment

Accounts

None

API keys

None

Telemetry

Zero

Cloud

Never

Pricing

Pick the plan that fits your prompt volume.

Start free with 8 of 20 specialists and 5 runs daily. Upgrade when you want the full pipeline, exports, and Vault.

FREE

£0

5 runs daily · 8 specialists

5 prompts a day
Copy as Prompt Pack
On-device privacy
No account setup

Download

No card required

MONTHLY

£4.99/ mo

Unlimited runs · billed monthly

All 20 specialists
JSON and Markdown export
Vault access
Priority pipeline

Start monthly

Cancel anytime

YEARLY

£28.99/ yr

About £2.41 per month

Questions, answered.

Everything most people want to check before they install, upgrade, or move their prompt workflow onto the phone.

01 · COMPATIBILITY

Does MetaPromptLab work offline?

Yes. The full pipeline runs through Apple Intelligence on-device after installation.

02 · DEVICES

Which iPhones are supported?

iPhone 15 Pro and newer, running iOS 26 with Apple Intelligence enabled.

03 · INTEROP

Which AI tools can I paste Prompt Packs into?

Any tool that accepts structured prompts: ChatGPT, Claude, Gemini, Copilot, Midjourney, Grok, and more.

04 · PRIVACY

Do you collect prompts or telemetry?

No. There is no account system, analytics pipeline, or cloud prompt relay.

05 · OUTPUT

What is inside a Prompt Pack?

A system prompt, developer instructions, examples, output schema, validation criteria, and a token-budget recommendation.

06 · PRICING

What changes when I upgrade?

Pro unlocks all 20 specialists, unlimited runs, JSON or Markdown export, Vault, and priority processing.

Still curious? Contact support

Ready

Build smarter prompts today.

MetaPromptLab turns a vague sentence into a portable prompt system you can keep reusing across tools.

Download on the App Store Get support

Presets · Compare · Privacy · Terms

Trust markers

Made for Apple Intelligence

Works on-device

No account needed

Built in the UK