# CALCOs vs Flex Calculators

The clearest difference is in-app purchases: CALCOs at none against Flex Calculators's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Flex Calculators sells 1 one-off in-app purchase. CALCOs asks for nothing beyond the download.

## The numbers

| Metric | CALCOs | Flex Calculators |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Size | 24 MB | 37 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sportrade OU](https://appshunter.io/developer/1685235457) | [An Le](https://appshunter.io/developer/1863975090) |

## What reviewers say

### CALCOs

[App page](https://appshunter.io/ios/app/calcos/id6753353712)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flex Calculators

[App page](https://appshunter.io/ios/app/flex-calculators/id6761326502)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is CALCOs free?

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

### Is Flex Calculators free?

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

### Do CALCOs or Flex Calculators have ads?

Neither CALCOs nor Flex Calculators shows ads.

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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.*