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
Aqualert : Stay Hydrated
Do you drink enough water?
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
4 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 Aqualert : Stay Hydrated: map the core Health & Fitness 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 customizable reminders and notifications.
Assumption to check: Users struggle to remember to log their water intake regularly.
Validate with people who use this workflow before building.
Hypothesis 2
Add more detailed graphs and insights into hydration patterns.
Assumption to check: Limited data visualization options for hydration history.
Validate with people who use this workflow before building.
Hypothesis 3
Make goal-setting more intuitive with sliders and presets.
Assumption to check: Difficulty in setting and modifying daily goals.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce social sharing and challenges with friends.
Assumption to check: Lack of social features to encourage accountability.
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
Do you drink enough water? Do you always forget to drink water regularly? Are you in good shape? You need Water Drink Reminder - a water tracker app to help you develop good habits of water drinking! This water tracker app reminds you to drink water every day to keep you hydrated. The benefits of Aqualert: * Stay in shape and keep fit; water is calorie free * Clears up your skin * Keeps your skin and nails healthy * Helps prevent kidney stones * Keeps you hydrated Key Feature of Drink Water Reminder – Water Diet Tracker & Alarm : - Drink Water Reminder and Tracker will help you by calculating how much water you need, tracking what you drink, and gently reminding you when to drink. - My Water Balance: Daily Drink Tracker & Reminder - Drink Water Reminder – Water Diet Tracker & Alarm is improve your health with personal drink notifications. - Daily intake calculator, tracker and reminder based on your sex, weight and activity level. - Notification, Alert and reminder to remember you to drink water as you prefer - Drink Water Reminder and Tracker is helps you to have a good water balance on your body using notification drink reminde - water intake will help you stay fit and enduring. It’s a simple water diet on its own. - Use Drink Water Reminder to keep yourself hydrated all the time! - Keep perfect track of your water balance. - Easy to add or remove a serving from the water tracker. - Drink Water Reminder is easy to use yet more than effective! - Supports imperial (fl. oz.) and Metric (ml) unit Fine lines and wrinkles are deeper when you're dehydrated. drinking hydrates skin cells and plumps them up, making your face look younger. Advantages of have a good water balance : - Stay slimmer Revs up metabolism and helps you feel full. - Boosts your energy If you're feeling drained and depleted, drink more. - Lower stress 85% of your brain tissue is water. - Build muscle tone Water benefit is to prevent muscle cramping and lubricates joints in the body. - Nourish your skin Better Health Improve your health plans and move a head with finest water delivery. Set the water reminder automatically based on your sleep time, wake up time and reminder interval based on this water drink reminder will determine how much water your body needs on a daily basis. Make Water as your best friend, By drinking water on time one will get the innumerable benefits of drinking water: Relief from fatigue, Weight loss, glowing skin, Heartburn etc... this Water Drinking Reminder with Alarm helps you to achieve this benefits. At present day work-life drinking enough water on time will be very challenging, this Water drinking app makes easier to stay hydrated Water drinking tracker is a very secure app Have fun, sharing the water intake with your friends using this Aqualert.
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
Victory Native
React Native Paper
Firebase
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.
