App Overview

iApp - Global App Store Charts icon

iApp - Global App Store Charts

天从 何 · Reference

iApp is a third-party App Store browser for developers, PMs, and app fans

$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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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included15 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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for iApp - Global App Store Charts: map the core Reference 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 more interactive charts and graphs.

Assumption to check: Limited data visualization options for app trends

Validate with people who use this workflow before building.

Hypothesis 2

Add user reviews and ratings for apps.

Assumption to check: User engagement may be low due to lack of community features

Validate with people who use this workflow before building.

Hypothesis 3

Introduce personalized recommendations based on user preferences.

Assumption to check: Difficulty in discovering new 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

iApp is a third-party App Store browser for developers, PMs, and app fans. No sign-in or Apple ID switching—browse 170+ storefront charts, search details, and track version, availability, and price drops. Data from Apple’s public iTunes APIs. Not affiliated with Apple Inc. WHY CHOOSE iAPP 1. Cross-region without switching accounts Browse 170+ markets. Keyword region search. Customizable Quick Region chips (shared or separate, unlimited). Switch region on the detail header; All Regions stays available. System region helper reads the storefront and lets you confirm or copy the official jump link. 2. Rich charts, flexible persistent filters 12 live charts: Free, Paid, Grossing, and New for iPhone, iPad, and Mac. 26 categories plus 18 game subgenres. Filters save and scroll to top. Mac/iPad Paid & Grossing use progressive web charts; platform badges. Optional rank history & presets with interactive charts and silent foreground refresh. Share long ranking snapshots. 3. Search & detail in one place Keyword search with region and iPhone/iPad/Mac filters; paste App Store links or App IDs. Search history; dismiss search while keeping results (iOS 15+). Catalog-first screenshots and App Preview video (HLS, copy/save). Reviews with sort, star filter, expand text, load more, developer replies; fallback APIs. Same-developer preview; full developer list with sorts, by-rank, text/CSV/image export. All Regions: availability, price, version, by-rank, content compare. Favorite, share QR cards, or subscribe to version / new listing / delisting / price drop. 4. Subscription monitoring Auto-poll with global/per-item intervals (h/m/s, min 10s). Keyword/platform search for version/delisting; App ID or link for new listings. Track updates, new listings, delistings, and price drops; pause/resume. Optional per-item Live Activity (Lock Screen / Dynamic Island). Optional Preferences iCloud. Subscription Tab can hide. 5. Favorites that stick Star or swipe to favorite by region. Optional Favorites Tab; shortcuts & Deep Links. Pin, groups, notes; multi-select; filter by group, region, category, or ranking. 9 sorts; export text, CSV, or long images. Developer Favorites (optional Tab + independent iCloud). Browse history up to 100 apps. 6. Home & Lock Screen widgets iOS 17+: Ranking widgets (type, category, region, game subgenre) Small–Extra Large + Lock Screen; Favorites sync pin-first. Deep Links; theme-following backgrounds; 18 UI languages. iOS 16.2+: Live Activities for Top 6 rankings and subscription monitors (separate LA toggle). 7. Lists & browsing extras List/grid on rankings (iPhone 2–4 cols, iPad 3–6); Search & Favorites layouts separate. Multi-field rows: summary, rating, size, min OS, dates, version, content rating, languages. Long-press: All Regions, Store page, same developer, homepage, subscribe, favorite developer. APPEARANCE & SETTINGS System / Light / Dark; 18 languages; 9 alternate icons. App Settings: cellular alerts; Subscription / Favorites / Developer Favorites tabs. Preferences iCloud for subscriptions, filter presets, search & quick regions. Up to 4 shortcuts from 15 destinations; Siri & App Intents. HIGHLIGHTS Native SwiftUI; public APIs only; optional iCloud; widgets (iOS 17+); shortcuts & Siri; 12 charts, 18 game subgenres, 170+ regions, reviews with developer replies, Live Activity, multi-field lists, version history, same-developer preview. IMPORTANT Third-party tool—not the official App Store. Data depends on Apple public APIs. Subscription monitoring works in the foreground—not system push. Widgets need iOS 17+; main app needs iOS 15+. Shortcuts: system max 4 among 15 destinations. Live Activity needs iOS 16.2+; no refresh when fully quit. Prefer Wi-Fi for heavy All Regions queries; saving video needs Photos permission.

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.

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BUILD KIT DIFFICULTY
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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.