# CalcFlex vs BenchPro Testing

The clearest difference is in-app purchases: BenchPro Testing at none against CalcFlex's 6. BenchPro Testing also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). CalcFlex's advantage is update cadence (every 9 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. CalcFlex sells 3 one-off in-app purchases. BenchPro Testing asks for nothing beyond the download.

CalcFlex ships an update every 9 days, BenchPro Testing every 3 weeks. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | CalcFlex | BenchPro Testing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 2 MB | 18 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Chiu Loong Ng](https://appshunter.io/developer/1755978644) | [Jonathan Pegues](https://appshunter.io/developer/6810939952) |

## 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 |


### BenchPro Testing

[App page](https://appshunter.io/ios/app/benchpro-testing/id6810939950)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalcFlex free?

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

### Is BenchPro Testing free?

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

### Do CalcFlex or BenchPro Testing have ads?

Neither CalcFlex nor BenchPro Testing shows ads.

### Which is updated more often, CalcFlex or BenchPro Testing?

CalcFlex ships an update every 9 days, and BenchPro Testing every 3 weeks. Most recently, CalcFlex was updated on November 8, 2026 and BenchPro Testing on November 13, 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.*