Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Offline Email AI brings private, on-device intelligence to your inbox
$2.99
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Offline Email AI: map the core Business workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Offline Email AI brings private, on-device intelligence to your inbox. A compact language model runs entirely on your iPhone, so your messages never leave the device to be summarized, triaged, or drafted. Connect any IMAP / SMTP account — Gmail, iCloud, Outlook, Yahoo, Fastmail, or your own mail server — and get: • One-tap inbox summaries • Urgency scoring (High / Medium / Low) • AI-assisted replies and drafts • Voice-to-text composition • PDF and image analysis in context • Fully offline operation after the first launch • Optional cloud models (OpenAI, Anthropic, Gemini, and custom endpoints) for users who prefer them — disabled by default Why Offline Email AI? Your email is personal. Most AI assistants ship every message you receive to a third-party cloud so a remote model can read it. Offline Email AI does not. The model lives on your phone. Credentials live in the iOS Keychain. There is no developer backend, no analytics SDK, no tracker, and no account to create. Privacy by design • No data leaves your device to the developer — ever. • IMAP and SMTP traffic goes directly to your mail provider over TLS. • Credentials and optional API keys are stored only in the iOS Keychain. • You control every byte — uninstall the app to delete everything. Built for Apple silicon Offline Email AI is built on the open-source llama.cpp runtime and Llama 3.2, tuned for iOS. It detects your device's memory tier and loads the model with the right context size, batch size, and execution backend — so older iPhones stay responsive while newer A17 / A18 devices get full Metal acceleration. Works with the mail you already have No new inbox. No forwarding. No import. Add your existing address and the app connects to your provider through the standard IMAP and SMTP ports. You keep your mail where it is. What's inside • On-device language model (≈0.8 GB, bundled with the app) • Native IMAP and SMTP client with TLS • Encrypted local cache of message bodies • Compose, reply, forward, save-draft, delete • Inbox triage with per-email urgency tags • Markdown rendering of AI output • Dark and light themes No subscriptions. No ads. No tracking. Get to inbox zero without giving your email to a stranger. Disclaimer: 1. Third-party / trademark disclaimer — not affiliated with Google, Apple, Microsoft, Yahoo, Fastmail, etc. (addresses Guideline 5.2 — Intellectual Property). 2. AI-output accuracy disclaimer — output "may be inaccurate, incomplete, biased, or out of date"; user is responsible for what they send. (Addresses Apple's generative-AI guidance and general fitness-for-purpose.) 3. Third-party ToS pass-through — your mail provider's and any optional cloud LLM provider's terms apply; the developer has no visibility into those relationships. 4. Service dependency — app requires an existing IMAP/SMTP account and doesn't provide hosting.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.