# WillOS vs CalcKey

The clearest difference is review sentiment: WillOS at 100% against CalcKey's 0%. CalcKey's advantage is price (Free vs $3.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

CalcKey is free to download; WillOS costs $3.99 up front. WillOS sells 5 one-off in-app purchases and CalcKey sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

WillOS ships an update every 2 weeks, CalcKey every 3 weeks. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | WillOS | CalcKey |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[3.8 (8 ratings)](https://appshunter.io/ios/app/calckey-calculator-keyboard/id6748647909/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 14 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [艺景 张](https://appshunter.io/developer/1818288159) | [Right Tracks IT Limited](https://appshunter.io/developer/1803615116) |

## What reviewers say

### WillOS

[App page](https://appshunter.io/ios/app/willos/id6748278061)

This productivity tool helps users organize their time and prioritize tasks. It offers features to stay aware of time, focus on high-value activities, and manage tasks across multiple devices.

**Highlights:** Time awareness, Task prioritization, Cross-device task management, Organized time management

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wishing Well (人・ω・。) | $0.99 | one-time |
| Fuel me (//ω//) | $2.99 | one-time |
| Feed me (//ω//) | $4.99 | one-time |
| PRO | $6.99 | one-time |
| Feed me (//ω//) | $6.99 | one-time |


### CalcKey

[App page](https://appshunter.io/ios/app/calckey-calculator-keyboard/id6748647909)

Perform calculations directly within any app using a smart keyboard extension. Get instant results for basic and scientific equations, with a history of your calculations. Enjoy a seamless typing experience and smart formatting.

**Highlights:** Keyboard calculator extension, Real-time results, Basic & scientific calculators, Calculation history, Smart formatting, Standalone app option

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcKey Pro Monthly | $3.99 | per month |
| One time purchase | $19.99 | one-time |


## Frequently asked questions

### Is WillOS free?

WillOS costs $3.99, and also offers in-app purchases.

### Is CalcKey free?

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

### Do WillOS or CalcKey have ads?

Neither WillOS nor CalcKey shows ads.

### Which is updated more often, WillOS or CalcKey?

WillOS ships an update every 2 weeks, and CalcKey every 3 weeks. Most recently, WillOS was updated on October 9, 2026 and CalcKey on October 13, 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.*