# FixCalc vs KolayAra

The clearest difference is in-app purchases: KolayAra at none against FixCalc's 1. FixCalc's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. FixCalc sells 1 one-off in-app purchase. KolayAra asks for nothing beyond the download.

FixCalc ships an update weekly, KolayAra every 10 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | FixCalc | KolayAra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Size | 15 MB | 40 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dmitry Alaev](https://appshunter.io/developer/502956595) | [Huseyin Erkan Eser](https://appshunter.io/developer/6782342977) |

## What reviewers say

### FixCalc

[App page](https://appshunter.io/ios/app/fixcalc-material-calculator/id6778463977)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FixCalc Pro Lifetime | $7.99 | one-time |


### KolayAra

[App page](https://appshunter.io/ios/app/kolayara/id6792557198)

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

**In-app purchases:** none


## Frequently asked questions

### Is FixCalc free?

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

### Is KolayAra free?

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

### Do FixCalc or KolayAra have ads?

Neither FixCalc nor KolayAra shows ads.

### Which is updated more often, FixCalc or KolayAra?

FixCalc ships an update weekly, and KolayAra every 10 days. Most recently, FixCalc was updated on October 31, 2026 and KolayAra on October 31, 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.*