# CalcFlex vs Formcalc

The clearest difference is iOS requirement: Formcalc at 15.6 against CalcFlex's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CalcFlex sells 3 one-off in-app purchases and Formcalc sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | CalcFlex | Formcalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Size | 2 MB | 22 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Chiu Loong Ng](https://appshunter.io/developer/1755978644) | [Admir Pekic](https://appshunter.io/developer/1624225966) |

## What reviewers say

### CalcFlex

[App page](https://appshunter.io/ios/app/calcflex-calculator/id6520389768)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +3 New Variables | $1.99 | one-time |
| +20 New Equation Slots | $1.99 | one-time |
| +1 New Calculator | $3.99 | one-time |


### Formcalc

[App page](https://appshunter.io/ios/app/formcalc/id6759346391)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $0.99 | per month |
| Basic Year | $12.99 | per year |


## Frequently asked questions

### Is CalcFlex free?

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

### Is Formcalc free?

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

### Do CalcFlex or Formcalc have ads?

Neither CalcFlex nor Formcalc 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.*