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
Fitcontext - Training Export
FitContext turns the data your Apple Watch, sports watch and health apps already collect into clear training insights - on your device, under your control.
$0.99
PRICE
$0.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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/
Preview a sample Build Kit No email needed
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.
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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.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
FitContext turns the data your Apple Watch, sports watch and health apps already collect into clear training insights - on your device, under your control. TRAINING ANALYSIS - Heart-rate zones: a personal 5-zone model with per-workout time in zone, computed from your heart rate data - Training load: acute:chronic workload ratio (ACWR), CTL/ATL/TSB fitness-fatigue balance, monotony and strain, computed from your exercise sessions, distance, speed, power and calories - Recovery: a daily overview of resting heart rate, heart-rate variability (HRV), sleep and VO2 max trends to judge training readiness ALL YOUR SOURCES, ONE PICTURE FitContext reads your data from Apple Health, so it works with Apple Watch, Garmin, Oura, Polar, Whoop, Fitbit and any other device or app that syncs to Apple Health. You can also connect intervals.icu with your own API key to pull in workouts and wellness data from Garmin, Polar, Suunto, COROS, Wahoo and more. When several sources write the same data, you choose which one wins per category. YOUR DATA, YOUR COACH Generate a structured training report and share it with whoever you trust - your coach, or the AI assistant of your choice (ChatGPT, Claude, Gemini). FitContext has no built-in AI service, no account and no developer server: your health data stays on your device and leaves it only when you explicitly share a report. FOOD DIARY WITH AI ESTIMATES Log meals the way that suits you: snap a photo, add a note, search the built-in food database, scan a product barcode or photograph a nutrition label (read on your device). Want calories and macros estimated by AI? Share meals to the AI chat you already use and paste its reply back, or plug in your own OpenRouter API key for direct analysis - or skip AI entirely and log manually. You review every estimate before it lands in your diary. ALSO INCLUDED - Training goals with countdown - Blood-pressure logging - Built-in demo data, so you can explore every feature before connecting Apple Health - Full English and Polish localization FitContext is not a medical device and does not diagnose, treat, cure or prevent any medical condition. For medical advice, consult a healthcare professional.
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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
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.
