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
Diabetes App •
Diabetes Assistant supports you in your daily life with diabetes and enables you to manage your blood sugar measurements and meals in an easy and straightforward way
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
156 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 Diabetes App •: map the core Medical 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 more user-friendly meal logging process with suggestions and autofill.
Assumption to check: Users struggle with meal logging accuracy and complexity.
Validate with people who use this workflow before building.
Hypothesis 2
Add gamification elements to encourage regular usage.
Assumption to check: Lack of motivational features like reminders or rewards.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify stats display and improve chart readability.
Assumption to check: Data visualization can be overwhelming or unclear.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate community forums or sharing features for user interaction.
Assumption to check: Limited community support or social 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
Diabetes Assistant supports you in your daily life with diabetes and enables you to manage your blood sugar measurements and meals in an easy and straightforward way. Your Blood Sugar Diary Diabetes Assistant is a unique app to manage all your blood sugar measurements. With the help of charts it becomes easy to monitor the development of you blood glucose levels and to reach an ideal balance between nutrition and blood glucose level. By exporting all your blood sugar data, even your doctor can be kept up to date with the latest developments. Your Meals Diary For most diabetics it is important to keep track of their nutrition. That is why Diabetes Assistant supports you in logging all your daily meals. The straightforward presentation of meals enables you to obtain a quick overview of your consumed carbohydrates throughout the day and to optimally align your nutrition with your needs. Reminders No matter if it’s a doctor’s appointment or the intake of your medication – Diabetes Assistant puts an end to forgetting important appointments. The possibility to create reminders makes Diabetes Assistant to your perfect and reliable companion which accompanies you through all circumstances. Modern and Intuitive The user interface of Diabetes Assistant was specifically crafted for Apple’s all new iOS 7 and optimized with much love down to the last detail. Thus we created an easy-to-use app which will give you pleasure during your daily usage through its intuitive operability and its tasteful design. By downloading this app you agree to our Terms of Service and Privacy Policy: www.caloon.co/legal
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
Axios
React Navigation
react-native-chart-kit
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.
