Collect 21

⚠ This app was removed from the US App Store and is no longer live.

Collect 21 Summary

Collect 21 is a free, ad-supported iOS app in Games by Phoca. Released in Aug 2022 (3 years ago). Store last updated Aug 2, 2022

Collect 21 SDKs Summary

App not yet scanned for SDKs.

App Details

Store ID: 1636317536

First Released: 2022-08-02

Store Last Updated: 2022-08-02

App Store Category: Games

In-App Purchases: No

Ads: Yes

Price: Paid

Website: starfish-app-5zvpt.ondigitalocean.app

App Store

Crawl Status: Success

AppGoblin First Crawled: 2026-01-14

AppGoblin Last Crawled: 2026-07-22

Ads & App-Ads.txt

Ads.txt Last Crawled: 2026-03-03

Ads.txt Crawl Status: Failed

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Screenshots

App Description

Playing Collect 21 for 10 minutes a day sharpens your mind and prepares you for your daily life and challenges!

Collect numbers - Challenge your brain through thousands of mahjong puzzles. Puzzles start with low difficulty and become challenging fast!
Create a Calm Experience - Solve addictive yet always evolving numbers by collecting mahjong puzzles in a unique and calm experience.