HappyKey

Alexander Baratti Education iPhoneiPadiPod touch

HappyKey is a free Education app for iPhone and iPad by Alexander Baratti. Rated 3.7/5 from 9 ratings. Requires iOS 17.6. Updated September 12, 2026.

Rating: 3.7; 9 ratings
Price: Free; on the App Store
Size: 26 MB; Age 4+
Updated: Sep 12; 2026 · v5.2

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Screenshots

About HappyKey

HappyKey provides you with a simple keyboard with many useful math symbols. It will fulfill all of your math notation needs with numbers, superscripts, pi, math operators and relations, infinity, and beyond. Install the app first, then to setup the keyboard go to Settings > General > Keyboard > Keyboards > Add New Keyboard > HappyKey Note: This is not a calculator. This is an additional keyboard that makes it easier to type math notation. Credit for the keyboard functionality and design goes to the open source Tasty Imitation Keyboard by Alexei Baboulevitch (GitHub user archagon).

Ratings & reviews

3.7

9 ratings

5 ★ 44% 4 ★ 22% 3 ★ 11% 2 ★ 0% 1 ★ 22%

What’s new

Version 5.2 · Updated September 12, 2026

App Icons Change the app icon from a selection of alternate app icons. Minor Improvements Bug fixes and changes have been made to improve the app's experience. This update improves support for iOS 27.

App privacy

The developer, Alexander Baratti, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

HappyKey is a free Education app for iPhone, iPad and iPod touch, developed by Alexander Baratti. It is rated 3.7 out of 5 from 9 ratings on the App Store, requires iOS 17.6 or later and is 26 MB to download. It was first released on March 1, 2015 and last updated on September 12, 2026.

Category: Education
Rating: 3.7 / 5 (9 ratings)
Price: Free
Version: 5.2
Size: 26 MB
Requires: iOS 17.6 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 4+
Released: March 1, 2015
Last updated: September 12, 2026
Developer: Alexander Baratti

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Alternatives to HappyKey

Looking for apps like HappyKey? Here are 6 similar apps on the App Store. The highest rated is Commtech USA (5.0/5), and 4 of the 6 are free to download.

HappyKey vs. alternatives
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HappyKey	3.7 / 5 (9 ratings)	Free	September 12, 2026
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