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
Type & Speak - Text to Speech
Looking for an app to read things out loud? Search no more! Type & Speak allows you to convert any text into audio, no matter the length
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
858 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 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 Type & Speak - Text to Speech: map the core Utilities workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Offer more diverse voice options and accents.
Assumption to check: Limited voice options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline text-to-speech processing.
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize playback speed.
Assumption to check: Lack of customization for playback speed
Validate with people who use this workflow before building.
Hypothesis 4
Enhance history with search and edit functionality.
Assumption to check: Basic history feature
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Looking for an app to read things out loud? Search no more! Type & Speak allows you to convert any text into audio, no matter the length. Just pick a language and a voice–and you’re all set. Type & Speak is a powerful text to speech app designed to read aloud any text with natural sounding voices. Type & Speak is the perfect app for you if: - you’re looking forward to reading faster and saving time; - you’d like to improve your productivity and comprehension; - you aim at doing more at once: take your reading wherever you go – to the gym, the park, or the couch; - you suffer from vocal problems such as dyslexia or you sometimes struggle to express yourself (don’t worry, we’ve got you covered!); - you need to create voice overs for any videos, customer support, podcasts etc. - you’d like to trick your friends–everyone loves a good prank ;) Here’s all the magic you can do with Type & Speak: - Speak and say anything. - Convert any text into speech by inputting or pasting your own text. - Choose between male or female natural sounding voices in over 20 different languages and accents. - Adjust the voice speed and the font size. - Enable the dyslexia font. - Save your phrases as favorites. - Download your speech as an audio file and share it with your friends via iMessage, WhatsApp, Facebook Messenger, TikTok, Instagram, Snapchat, e-mail etc. What are you waiting for? Join thousands of people who use Type & Speak every day to read, speak and improve their comprehension! The complete list of all the supported voices you can find on Type & Speak: Arabic; Chinese (China, Hong Kong, Taiwan); Czech; Danish; Dutch (Belgium, Netherlands); English (Australia, Ireland, South Africa, United Kingdom, United States); Finnish; French (Canada, France); German; Greek; Hindi; Hungarian; Indonesian; Italian; Japanese; Korean; Norwegian; Polish; Portuguese (Brazil, Portugal); Romanian; Russian; Slovak; Spanish (Mexico, Spain); Swedish; Thai; Turkish. Don’t forget to check out our updates. New content is added regularly. New features coming soon: convert PDFs, epubs, books, messages, notes and many other documents into speech. If you’re enjoying Type & Speak, then please leave a review! You’ll make us happy and help others discover your favorite text to speech app. Please have a look at our Terms of Service and Privacy Policy at the following link: https://docs.google.com/document/d/1_Pxk526hbwdfCsi-LKQZ2G1kfih0w38XPPFjMwkR1m4/edit Have a feature request you would like to see in a future version of the app? Do not hesitate to contact us at [email protected]
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Screenshots
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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
Expo
React Navigation
Zustand
expo-av
expo-speech
React Native
BUILD KIT DIFFICULTY
Starter
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.
