# INTER[action] vs Acumen Shift

The clearest difference is iOS requirement: INTER[action] at 11.0 against Acumen Shift's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | INTER[action] | Acumen Shift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | — |
| Size | 48 MB | 10 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GBT US LLC](https://appshunter.io/developer/1040185723) | [Beetrick Technologies SL](https://appshunter.io/developer/1494112892) |

## What reviewers say

### INTER[action]

[App page](https://appshunter.io/ios/app/interaction/id6526502293)

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

**In-app purchases:** none


### Acumen Shift

[App page](https://appshunter.io/ios/app/acumen-shift/id6744528204)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is INTER[action] free?

INTER[action] is free to download, with no in-app purchases.

### Is Acumen Shift free?

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

### Do INTER[action] or Acumen Shift have ads?

Neither INTER[action] nor Acumen Shift 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.*