# Kalc vs WonderCalc

The clearest difference is iOS requirement: Kalc at 13.4 against WonderCalc's 16.0. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Kalc against 4.7 for WonderCalc. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews are what separate them: 96% of Kalc's written reviews are positive against 100% of WonderCalc's.

Kalc ships an update every 9 days, WonderCalc every 5 days. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Kalc | WonderCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/kalc/id610991936/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/wondercalc/id6444459924/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | 96.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free | Free |
| Size | 24 MB | 5 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUTA OKAJIMA](https://appshunter.io/developer/610991939) | [SharkMonkey Apps](https://appshunter.io/developer/1654824300) |

## What reviewers say

### Kalc

[App page](https://appshunter.io/ios/app/kalc/id610991936)

This utility app offers a unit converter, calculator, and world clock. Its user-friendly interface is designed for quick access to everyday calculations and conversions.

**Highlights:** Unit converter, Calculator, World clock, Simple UI, Quick results

**Features:** macOS Compatibility

**In-app purchases:** none


### WonderCalc

[App page](https://appshunter.io/ios/app/wondercalc/id6444459924)

This utility app handles all your basic calculation needs, including unit conversions for length, weight, and temperature. It also offers advanced financial calculations for loans, such as monthly payments, total cost, and interest paid.

**Highlights:** Basic calculations, Cut, copy, and paste functionality, Unit conversions (length, weight, temperature), Loan payment calculations, Total loan cost and interest calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is Kalc free?

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

### Is WonderCalc free?

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

### Which has better reviews, Kalc or WonderCalc?

WonderCalc is rated higher. Kalc averages 4.7 out of 5 from 3 ratings, while WonderCalc averages 4.7 from 3 ratings.

### Do Kalc or WonderCalc have ads?

Neither Kalc nor WonderCalc shows ads.

### Which is updated more often, Kalc or WonderCalc?

Kalc ships an update every 9 days, and WonderCalc every 5 days. Most recently, Kalc was updated on October 23, 2026 and WonderCalc on October 12, 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.*