# SPEEDFLEX vs ProteinMeter

The clearest difference is price: SPEEDFLEX at Free against ProteinMeter's $0.99. SPEEDFLEX also leads on iOS requirement (11.0 vs 15.6). ProteinMeter's advantage is device support. On in-app purchases there is nothing between them.

SPEEDFLEX is free to download; ProteinMeter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | SPEEDFLEX | ProteinMeter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Monthly |
| Size | 5 MB | 25 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Salih Toprak](https://appshunter.io/developer/1540656937) | [aydn diler](https://appshunter.io/developer/1849327922) |

## What reviewers say

### SPEEDFLEX

[App page](https://appshunter.io/ios/app/speedflex/id1672448818)

**In-app purchases:** none


### ProteinMeter

[App page](https://appshunter.io/ios/app/proteinmeter/id6763900818)

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

**In-app purchases:** none


## Frequently asked questions

### Is SPEEDFLEX free?

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

### Is ProteinMeter free?

ProteinMeter costs $0.99, with no in-app purchases.

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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.*