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
ElevenLabsTTS-iOS
Experience natural-sounding AI voices on your iPhone or iPad with the ElevenLabs TTS app
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
2 ratings · Below Average
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 included15 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 ElevenLabsTTS-iOS: 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
Thorough testing and stability improvements before launch.
Assumption to check: Poor user reviews due to bugs and crashes
Validate with people who use this workflow before building.
Hypothesis 2
Add diverse voice selections with different accents.
Assumption to check: Limited voice options
Validate with people who use this workflow before building.
Hypothesis 3
Implement adjustable playback speed for user preference.
Assumption to check: No playback speed control
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the settings interface for better usability.
Assumption to check: Confusing settings layout
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
Experience natural-sounding AI voices on your iPhone or iPad with the ElevenLabs TTS app. Designed with a modern SwiftUI interface, this text-to-speech app makes it easy to convert text into high-quality speech using ElevenLabs’ advanced AI. Key Features: • Text-to-Speech Conversion: Instantly generate speech from any text. • Voice Selection: Choose from a wide range of AI voices. • Audio Controls: Play, stop, save, and share audio effortlessly. • Custom Voice Settings: Fine-tune style, stability, similarity, and more. • Background Audio: Keep audio playing even while multitasking. • Persistent Settings: Your voice preferences are always saved. Whether you’re using it for accessibility, narration, learning, or just for fun—this app brings cutting-edge voice synthesis to your fingertips. Requires an ElevenLabs API key. iOS 17+ only.
Written user reviews are not shown here. Check current App Store reviews >
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
React Native
Expo
@react-native-async-storage/async-storage
expo-speech
react-navigation
BUILD KIT DIFFICULTY
Intermediate
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.
