# CalcKit vs ChatCharm Keyboard

The clearest difference is review sentiment: CalcKit at 100% against ChatCharm Keyboard's 0%. CalcKit also leads on rating (4.6 vs 2.3) and ads (none vs shown). ChatCharm Keyboard's advantage is update cadence (weekly vs every 3 weeks). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. CalcKit sells 3 in-app purchases, starting at $19.99 per 7 days and ChatCharm Keyboard sells 2 in-app purchases, starting at $19.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CalcKit holds the better App Store score, 4.6 against 2.3. Both are backed by a comparable volume of ratings — 101 and 46 respectively. Written reviews point the same way: 100% of CalcKit's written reviews are positive against 0% of ChatCharm Keyboard's.

CalcKit ships an update every 3 weeks, ChatCharm Keyboard weekly. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CalcKit | ChatCharm Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (101 ratings)](https://appshunter.io/ios/app/calckit-tip-convert-and-utils/id6760994727/reviews)** | [2.3 (46 ratings)](https://appshunter.io/ios/app/chatcharm-keyboard/id6769270795/reviews) |
| Number of ratings | **101** | 46 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 124 MB | 99 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [麟浩 冯](https://appshunter.io/developer/1872258571) | [亚雯 雷](https://appshunter.io/developer/6788065392) |

## What reviewers say

### CalcKit

[App page](https://appshunter.io/ios/app/calckit-tip-convert-and-utils/id6760994727)

This app offers over 50 practical tools to solve everyday problems, from measuring distances with AR to scanning documents and performing complex calculations. It includes features for navigation, unit conversion, and even a scrolling text display.

**Highlights:** AR Distance Meter, Document Scanning & OCR, All-Purpose Calculator, Unit Converter, Floating Scrolling Text, Decision Maker

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WeekMember For Three Days Free | $19.99 | per 7 days |
| WeekMember | $19.99 | per 7 days |
| MonthMember | $39.99 | per month |


### ChatCharm Keyboard

[App page](https://appshunter.io/ios/app/chatcharm-keyboard/id6769270795)

Enhance your writing with an AI-powered keyboard that assists with replies, rewrites, and proofreading. Communicate effortlessly across languages and manage text snippets efficiently for faster typing.

**Highlights:** AI-generated replies, Tone and style improvement, Real-time grammar and spelling check, Seamless translation, Clipboard management, Quick phrase shortcuts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $19.99 | per 7 days |
| Yearly | $89.99 | per year |


## Frequently asked questions

### Is CalcKit free?

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

### Is ChatCharm Keyboard free?

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

### Which has better reviews, CalcKit or ChatCharm Keyboard?

CalcKit is rated higher. CalcKit averages 4.6 out of 5 from 101 ratings, while ChatCharm Keyboard averages 2.3 from 46 ratings.

### Do CalcKit or ChatCharm Keyboard have ads?

ChatCharm Keyboard shows ads; CalcKit does not.

### Which is updated more often, CalcKit or ChatCharm Keyboard?

CalcKit ships an update every 3 weeks, and ChatCharm Keyboard weekly. Most recently, CalcKit was updated on October 19, 2026 and ChatCharm Keyboard on October 9, 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.*