# Maelstrom vs Ata Research

The clearest difference is iOS requirement: Maelstrom at 15.1 against Ata Research's 17.0. 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 | Maelstrom | Ata Research |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Size | 32 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Helm](https://appshunter.io/developer/1763890605) | [Agents2agents, Inc.](https://appshunter.io/developer/1846433044) |

## What reviewers say

### Maelstrom

[App page](https://appshunter.io/ios/app/maelstrom-routine-builder/id6649161353)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ata Research

[App page](https://appshunter.io/ios/app/ata-research/id6760004849)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Maelstrom free?

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

### Is Ata Research free?

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

### Do Maelstrom or Ata Research have ads?

Neither Maelstrom nor Ata Research 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.*