# KetaKeta vs Max Calc

The clearest difference is in-app purchases: KetaKeta at none against Max Calc's 2. KetaKeta also leads on iOS requirement (15.6 vs 17.0). Max Calc's advantage is update cadence (every 9 days vs every 34 months). On price, ads and device support there is nothing between them.

Both are free to download. Max Calc sells 2 one-off in-app purchases. KetaKeta asks for nothing beyond the download.

KetaKeta ships an update every 34 months, Max Calc every 9 days. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | KetaKeta | Max Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/max-calc/id6463495098/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 1 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Masanori Mikawa](https://appshunter.io/developer/423958400) | [Anatolii Mazkun](https://appshunter.io/developer/1697280298) |

## What reviewers say

### KetaKeta

[App page](https://appshunter.io/ios/app/ketaketa/id665097411)

**In-app purchases:** none


### Max Calc

[App page](https://appshunter.io/ios/app/max-calc/id6463495098)

This app offers a versatile calculation suite, combining standard, scientific, developer, and accounting functions. It also includes a unit converter and tools for health and date calculations, all within a user-friendly interface.

**Highlights:** Standard and Scientific Calculator, Developer Calculator (hex, binary), Accounting Calculator, 130+ Unit Converter, Body and Date/Time Calculator, History tracking, Customizable result formatting

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 days Free Using  All Premium | Free | one-time |
| Premium features | $4.99 | one-time |


## Frequently asked questions

### Is KetaKeta free?

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

### Is Max Calc free?

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

### Do KetaKeta or Max Calc have ads?

Neither KetaKeta nor Max Calc shows ads.

### Which is updated more often, KetaKeta or Max Calc?

KetaKeta ships an update every 34 months, and Max Calc every 9 days. Most recently, KetaKeta was updated on October 26, 2026 and Max Calc on November 3, 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.*