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
Room Temperature + Thermometer
Temperature Checker – Thermometer for Room & Weather
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
37 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/
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.
// RORK SYSTEM PROMPT
Rork plan preview for Room Temperature + Thermometer: map the core Weather 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
Add advanced weather metrics like humidity and air quality.
Assumption to check: Limited features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement calibration and comparison against standard thermometers.
Assumption to check: Inconsistent measurement accuracy
Validate with people who use this workflow before building.
Hypothesis 3
Revamp the UI with modern design principles and animations.
Assumption to check: User interface feels outdated
Validate with people who use this workflow before building.
Hypothesis 4
Introduce social sharing of temperature readings and historical data.
Assumption to check: Lack of user engagement features
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
Temperature Checker – Thermometer for Room & Weather Turn your device into a powerful temperature checker and thermometer for room to monitor your surroundings anytime. This digital thermometer helps you track accurate room temperature, indoor temperature, and ambient temperature with ease. Whether you need a reliable temperature sensor or want to check temperature now, this app gives you fast and useful insights. Stay updated with current temperature now and today's temperature in different locations including london temperature, temperature in toronto, and temperature in vancouver. You can easily monitor toronto temperature and compare global weather conditions instantly. Use this advanced temperature checker as your daily thermometer for room to measure low temperature, highest temperature, and outdoor temperature. The app supports both celsius thermometer and fahrenheit thermometer for accurate temp measurement based on your preference. With features like raumtemperatur messen and thermometre interieur gratuit, you can check room temperature and indoor temperature in a simple and user-friendly way. This digital thermometer also works as a smart temperature sensor to help you understand your environment better. Track ambient temperature, outdoor temperature, and temperature now anytime. Whether you are checking temperature in toronto, temperature in vancouver, or london temperature, this app gives you reliable results quickly. Privacy Policy https://mtasolutionsapps.blogspot.com/2025/06/room-temperature-privacy-policy.html Terms & Conditions https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Zustand
react-navigation
expo-location
react-native-reanimated
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.
