App Store Data — search, lookup and top charts

App Store metadata and charts, from Apple's own published APIs. No key, no scraping, no browser.

Input:   { "mode": "search", "terms": ["notion", "obsidian"] }
Output:  one row per app — ratings, price, version, release notes, category, size

Three modes

Search — find apps by keyword, the way the store's own search works.

{ "mode": "search", "terms": ["password manager", "habit tracker"], "country": "us", "limit": 50 }

Lookup — fetch specific apps by their numeric App Store ID. IDs are batched 100 at a time, so a long watchlist is a handful of requests rather than one per app.

{ "mode": "lookup", "terms": ["1232780281", "1274495053"] }

Charts — the top free, paid or grossing apps for a country.

{ "mode": "chart", "chart": "top-grossing", "country": "jp", "limit": 100 }

Where the data comes from

Mode	Endpoint	What it is
Search, Lookup	itunes.apple.com/search, /lookup	The iTunes Search API, documented by Apple and served without a key
Charts	rss.applemarketingtools.com	Apple's own Marketing Tools RSS feed

Both are Apple's, both are public, and neither needs an account. Nothing is scraped from a store page.

No reviews, and therefore no personal data. This returns app metadata — how many ratings an app has and their average, but not the ratings themselves or who wrote them.

Input

Field	Type	Default	What it does
mode	string	search	search, lookup or chart
terms	array of strings	["notion"]	Keywords in search mode, numeric app IDs in lookup mode
country	string	us	Two-letter store code — us, gb, jp, de. Prices, availability and charts all differ by country
chart	string	top-free	top-free, top-paid or top-grossing. Chart mode only
limit	integer	50	Results per term. Apple caps this at 200

Output

Field	Type	Description
appId	string	Numeric App Store ID — pass it back in lookup mode
bundleId	string	Reverse-DNS bundle identifier
name / developer	string	App and publisher
url	string	Store page
category / categories	string / array	Primary category and the full list
price / currency / isFree	number / string / boolean	In the requested country's currency
rating / ratingCount	number	Average and how many ratings it is based on
ratingCurrentVersion	number	Average for the current version only
version	string	Current version
releasedAt / updatedAt	string	First release, and the current version's release
releaseNotes	string	What changed in this version
description	string	Full store description
sizeBytes / minimumOsVersion	number / string	Download size and OS requirement
languages	array	ISO codes the app is localised into
contentRating	string	Age rating
icon	string	Artwork URL
rank	number	Position, in chart mode

Pricing

	Price
Starting a run	$0.00001 — one US cent per 1,000 runs
Each app returned	$0.0003 — 30 US cents per 1,000 apps

A term that matches nothing produces no rows, and errors go to the log and SUMMARY rather than the dataset — so an empty search costs nothing.

Typical uses

• Competitive tracking. Watch a set of apps and see when the version, price or rating moves.
• Market research. Pull a chart across several countries and compare.
• ASO. See which apps a keyword actually returns, and how they are categorised.
• Release monitoring. updatedAt and releaseNotes tell you what shipped and when.

Limitations — stated up front

• iOS only. Google Play publishes no comparable open API, so it is not covered rather than scraped.
• No reviews. Deliberately — review text carries author names, and this stays clear of personal data.
• Chart rows carry less detail than search rows; take the appId and run lookup mode for the rest.
• Apple caps results at 200 per request.
• Rankings and prices are per country. Ask for the country you care about.

Not affiliated

This is an independent tool. It is not affiliated with, endorsed by, or sponsored by Apple Inc. App Store is a trademark of Apple Inc. Data comes from Apple's own publicly documented endpoints.