# Acceleration Calculator Plus vs PsychroFlow Pro

The clearest difference is price: PsychroFlow Pro at $1.99 against Acceleration Calculator Plus's $2.99. PsychroFlow Pro also leads on iOS requirement (15.1 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Acceleration Calculator Plus costs $2.99 and PsychroFlow Pro $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Acceleration Calculator Plus | PsychroFlow Pro |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | — |
| Size | 1 MB | 30 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [David Amison](https://appshunter.io/developer/808351168) |

## What reviewers say

### Acceleration Calculator Plus

[App page](https://appshunter.io/ios/app/acceleration-calculator-plus/id1658922875)

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

**In-app purchases:** none


### PsychroFlow Pro

[App page](https://appshunter.io/ios/app/psychroflow-pro/id6757249718)

**In-app purchases:** none


## Frequently asked questions

### Is Acceleration Calculator Plus free?

Acceleration Calculator Plus costs $2.99, with no in-app purchases.

### Is PsychroFlow Pro free?

PsychroFlow Pro costs $1.99, with no in-app purchases.

### Do Acceleration Calculator Plus or PsychroFlow Pro have ads?

Neither Acceleration Calculator Plus nor PsychroFlow Pro 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.*