HappyKey vs Commtech USA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HappyKey
This app offers a specialized keyboard for easily inputting a wide range of mathematical symbols. It includes numbers, operators, pi, infinity, and more, simplifying the process of writing math notation on your device.
- Specialized math symbol keyboard
- Includes numbers and operators
- Supports pi and infinity symbols
- Simplifies math notation input
- Customizable keyboard layout
Read full descriptionHide full description
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).
Commtech USA
Access tech news, reviews, tips, and tutorials on the go. Features audio/video training, a podcast, and direct contact with support staff. Receive instant alerts for new content and announcements.
- Latest tech news and reviews
- How-to guides and tutorials
- Audio and video training samples
- Access to Support Staff Podcast
- Direct contact with support staff
- Instant alerts for new content
Read full descriptionHide full description
Commtech USA is everything we offer online via our website in the palm of your hands! The latest news, reviews, tech tips and tutorials. Audio and Video training samples, access to the Support Staff Podcast, and quick access to our staff via phone, iMessage, email and more! When we release a podcast, training video or audio or announce something big, you’ll be the first to know via alerts straight to your device. (Requires enabling of Notifications).
Screenshots
Verdict
The clearest difference is review sentiment: Commtech USA at 100% against HappyKey's 50%. Commtech USA also leads on rating (5.0 vs 3.7) and device support (5 vs 2). HappyKey's advantage is update cadence (every 8 months vs every 21 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Commtech USA holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 50% of HappyKey's written reviews are positive against 100% of Commtech USA's.
HappyKey ships an update every 8 months, Commtech USA every 21 months. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.
| Parameter | HappyKey | Commtech USA |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (9 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 8 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac, Apple Watch — better |
| Requires iOS | 17.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Baratti | Commtech USA LLC |
Customer experience
HappyKey
Commtech USA
In-app purchases
HappyKey
No in-app purchases
Commtech USA
No in-app purchases
