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.
App Overview
InstantTranslator:AI Translate
Translate text, speech, pictures, documents, and subtitles anytime, anywhere.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
4,871 ratings · Top 30%
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.
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for InstantTranslator:AI Translate: map the core Reference workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Translate text, speech, pictures, documents, and subtitles anytime, anywhere. InstantTranslator is an AI-powered translation app for travel, study, work, and multilingual communication. Cloud translation supports more than 100 languages. Offline language availability may vary. [Key Features] • Text Translator Translate messages, emails, documents, chats, and webpages. • Voice & Speech Translator Recognize and translate spoken words for conversations, meetings, travel, and language learning. • Camera & Photo Translator Capture text from signs, menus, documents, or photos and translate it instantly. • Picture-in-Picture Subtitles Watch foreign-language videos with real-time translated subtitles in a floating window. • Live Conversation Translate both sides of a bilingual conversation in real time. • Document & PDF Translator Translate PDFs, papers, and other supported documents. • Offline Translation Translate without an internet connection using downloaded on-device language models. Offline translation is powered by Google Translate (https://translate.google.com) using on-device ML Kit models, including the text translation step used in text, voice, camera, photo, and screen translation modes. Speech recognition, text recognition, and text-to-speech may use separate technologies. Offline language availability differs from cloud translation. • 100+ Languages Cloud translation supports more than 100 languages, including Spanish, Japanese, Korean, Chinese, Tagalog, Vietnamese, Arabic, French, Russian, Portuguese, German, Italian, Polish, Thai, and more. [Perfect For] • Translating menus, signs, and travel information • Communicating with international customers and friends • Reading foreign-language study materials • Translating multilingual messages and conversations • Watching videos with translated subtitles Download InstantTranslator and communicate across languages wherever you go. [Subscriptions] InstantTranslator offers auto-renewable weekly and annual subscription plans. The applicable price will be displayed before purchase. Payment will be charged to your Apple ID account upon confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Privacy Policy: https://instanttranslator-6e103.web.app/privacy_policy.txt Terms of Use: https://instanttranslator-6e103.web.app/term_of_use.txt
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Implement user feedback for improving translations.
Assumption to check: Translation accuracy can vary significantly.
Validate with people who use this workflow before building.
Hypothesis 2
Expand language options and improve coverage.
Assumption to check: Limited support for rare languages.
Validate with people who use this workflow before building.
Hypothesis 3
Design a more user-friendly upgrade experience.
Assumption to check: In-app purchase prompts can be intrusive.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize API calls to improve speed.
Assumption to check: Slow response times for large text translations.
Validate with people who use this workflow before building.
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
React Navigation
Zustand
react-native-paper
BUILD KIT DIFFICULTY
Advanced
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.
