# HappyKey vs Math Symbol Helper

The clearest difference is in-app purchases: HappyKey at none against Math Symbol Helper's 1. HappyKey also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Math Symbol Helper sells 1 one-off in-app purchase. HappyKey asks for nothing beyond the download.

HappyKey ships an update every 8 months, Math Symbol Helper every 6 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | HappyKey | Math Symbol Helper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (9 ratings)](https://appshunter.io/ios/app/happykey/id965705471/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 26 MB | 10 MB |
| Requires iOS | **17.6** | 18.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Baratti](https://appshunter.io/developer/1264988386) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### HappyKey

[App page](https://appshunter.io/ios/app/happykey/id965705471)

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.

**Highlights:** Specialized math symbol keyboard, Includes numbers and operators, Supports pi and infinity symbols, Simplifies math notation input, Customizable keyboard layout

**In-app purchases:** none


### Math Symbol Helper

[App page](https://appshunter.io/ios/app/math-symbol-helper/id6752316588)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $1.99 | one-time |


## Frequently asked questions

### Is HappyKey free?

HappyKey is free to download, with no in-app purchases.

### Is Math Symbol Helper free?

Math Symbol Helper is free to download, with in-app purchases available.

### Do HappyKey or Math Symbol Helper have ads?

Math Symbol Helper shows ads; HappyKey does not.

### Which is updated more often, HappyKey or Math Symbol Helper?

HappyKey ships an update every 8 months, and Math Symbol Helper every 6 months. Most recently, HappyKey was updated on September 24, 2026 and Math Symbol Helper on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*