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
CountWhen Help Remembering
Does your reminder app struggle when time between matters more than a date?
$2.99 · In-app purchases
PRICE
$2.99
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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A product spec, screen plans, and build steps for your coding agent.
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What's included16 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for CountWhen Help Remembering: map the core Productivity 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
Implement a calendar view to highlight upcoming reminders.
Assumption to check: Users often forget to set reminders due to lack of visibility.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set custom notification times per reminder.
Assumption to check: Difficulty customizing reminder notifications.
Validate with people who use this workflow before building.
Hypothesis 3
Provide more flexibility in setting up recurring tasks.
Assumption to check: Limited options for recurring reminders.
Validate with people who use this workflow before building.
Hypothesis 4
Add calendar sync features to enhance usability.
Assumption to check: Lack of integration with other calendar apps.
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
Does your reminder app struggle when time between matters more than a date? CountWhen handles the mental load: track how long it's been and when it's time again. One tap to log. Instant clarity on elapsed time, due dates, or wait remaining. Three easy ways to track - Just tracking - Log events and see patterns over time (no reminders) - Due every - Set recurring intervals and get gentle notifications when it's time again - Wait at least - Enforce a minimum wait time before you can log again (with override option) How it works Set up a timer interval for minutes, hours, days, weeks, or months—or just track without alerts. Tap LOG when something happens. CountWhen instantly shows: - How long ago it last happened - How long until next due (or how long you've still got to wait) - Clear progress bars and overdue or ready alerts Why CountWhen instead of your calendar? Calendars struggle when time elapsed matters more than the exact date—like spacing coffee every 2 hours, cleaning the bathroom after 7 days, or adjusting for delayed events. CountWhen resets from when you last did it - even if that wasn’t when you planned Perfect for pet care & life responsibilities - Heartworm meds for dogs (monthly 30-day reminder) - Pet feeding & walks spacing - Cancel subscriptions before free trial ends - Call mom or dad every few days - Work and home deadlines Perfect for parents - Baby feeding, bottles & pumping sessions - Diaper changes - Nap scheduling & sleep training - Supplement timing - Instrument practice (piano, guitar, violin) - Reading time & homework sessions - Screen time gaps - Sunscreen reapplication - Kids' chores & responsibilities Perfect for self care - Hydration & supplement timing - Fasting windows - Caffeine breaks & coffee limits (no caffeine for 2 hours) - Prayer times & habit resets - Symptom logging Perfect for household & cooking - Sourdough starter timer (feed every 7 days) - Water plants & household chores (e.g., clean bathroom every 7+ days) - Cooking intervals (e.g., soup off stove in 8 hours) - Food prep intervals (e.g., bake muffins every 4 days) - Throw out milk before it expires in 7 days 100% on your device No cloud. No accounts. No subscriptions. No data sharing. Your logs, history, and settings stay completely private — stored only on your phone. Export or delete anytime. You own your data forever. Simple. Calm. Always there. Beautiful dark mode, customizable colors, rearrangeable tiles, and gentle reminders — designed to keep you focused without the stress. Download now and start tracking what matters — your way. Questions? [email protected]
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
Supabase
@react-navigation/native
Zustand
react-native-async-storage
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.
