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
InfiLog - Daily Tracker
InfiLog is an outstanding tool that lets you track and log most of everyday subjects
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 ratings · Top 5%
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 InfiLog - Daily Tracker: 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
Incorporate more analytics and customizable tracking options.
Assumption to check: Limited features compared to more comprehensive tracking apps.
Validate with people who use this workflow before building.
Hypothesis 2
Add cloud sync and multi-device support.
Assumption to check: No cloud sync for users who change devices.
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social sharing features to engage users.
Assumption to check: Lack of user community or sharing options.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create custom categories and tags.
Assumption to check: Limited customization options for activities.
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
InfiLog is an outstanding tool that lets you track and log most of everyday subjects. It is excellent for keeping journals, diaries or just to log something on a regular basis e.g. economy, workout sessions, shopping, movie reviews, visited places and much more. InfiLog lets you create your own lists according to your preferences. You can choose between a variety of input elements such as location, text/numeric fields, images, stopwatch, date/time, checkboxes and much more. You can get started in just three simple steps. 1. Create your categories 2. Create or use an existing template for your categories. 3. You are now ready to start posting entries to your category on a regular basis. Furthermore, you may use the graph to track your numerical values over time. Highlights: ◆ Highly customizable ◆ Several input elements to choose from ◆ Graph with goal/target line ◆ Checklists ◆ Daily Reminders - Receive a notification that reminds you to add new entries ◆ Export your reports as Email, PDF or CSV ◆ Backup data Don’t hesitate to try it out now. More interesting content is planned for future releases.
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 Navigation
Zustand
chart.js
@expo/vector-icons
React Native Reanimated
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.
