# Electronic Formulator vs WristBoard

The clearest difference is iOS requirement: WristBoard at 17.0 against Electronic Formulator's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Electronic Formulator sells 1 one-off in-app purchase and WristBoard sells 8 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Electronic Formulator ships an update every 9 days, WristBoard every 8 days. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Electronic Formulator | WristBoard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.2 (357 ratings)](https://appshunter.io/ios/app/wristboard-watch-keyboard/id1452694750/reviews)** |
| Number of ratings | — | **357** |
| Positive reviews | — | 18.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 43 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Adam Foot](https://appshunter.io/developer/1071261283) |

## What reviewers say

### Electronic Formulator

[App page](https://appshunter.io/ios/app/electronic-formulator/id675036997)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electronic Pro | $2.99 | one-time |


### WristBoard

[App page](https://appshunter.io/ios/app/wristboard-watch-keyboard/id1452694750)

Enhance your Apple Watch typing experience with a full QWERTY keyboard. Offers swipe typing, autocorrect, and suggestions for faster, more private messaging. Supports iMessage and Mail apps, with customizable themes and emoji integration.

**Highlights:** Full QWERTY, AZERTY, QWERTZ keyboard, Swipe typing functionality, Autocorrect and smart suggestions, Unlimited emoji support, Customizable themes, Message preview, Haptic feedback

**Features:** Family Sharing, Apple Watch app, iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WristBoard+ (Weekly) | $0.99 | per 7 days |
| WristBoard+ (Monthly) | $1.99 | per month |
| WristBoard+ (Yearly) | $6.99 | per year |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |
| WristBoard+ (Lifetime) | $19.99 | one-time |
| Huge Tip | $19.99 | one-time |

**What reviewers like**

- 🚀 Useful keyboard for Apple Watch
- 👍 Responsive customer support
- 💡 Innovative concept

**What reviewers complain about**

- 🐛 Keyboard not fully integrated with Messages app
- 👎 Difficult to use, requires constant scrolling
- 👎 Slow typing experience

**Reported bugs**

- Keyboard not appearing in Messages app
- Difficulty installing app on Apple Watch
- Keyboard not working consistently

**Requested features**

- Integrate keyboard directly with Messages app
- Add support for more messaging apps beyond just Messages
- Improve keyboard layout and responsiveness


## Frequently asked questions

### Is Electronic Formulator free?

Electronic Formulator is free to download, with in-app purchases available.

### Is WristBoard free?

WristBoard is free to download, with in-app purchases available.

### Do Electronic Formulator or WristBoard have ads?

Neither Electronic Formulator nor WristBoard shows ads.

### Which is updated more often, Electronic Formulator or WristBoard?

Electronic Formulator ships an update every 9 days, and WristBoard every 8 days. Most recently, Electronic Formulator was updated on November 1, 2026 and WristBoard on November 11, 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.*