# Ariah vs Diag'EC

Ariah and Diag'EC are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 9, 2026.

## The numbers

| Metric | Ariah | Diag'EC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 113 MB | 104 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [SECTESTER](https://appshunter.io/developer/1690427642) | [ESAIP](https://appshunter.io/developer/1560806400) |

## What reviewers say

### Ariah

[App page](https://appshunter.io/ios/app/ariah-app/id6449749059)

**Features:** Vision Pro support

**In-app purchases:** none


### Diag'EC

[App page](https://appshunter.io/ios/app/diagec/id6465952696)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ariah free?

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

### Is Diag'EC free?

Diag'EC is free to download, with no in-app purchases.

### Do Ariah or Diag'EC have ads?

Neither Ariah nor Diag'EC shows ads.

### Which is updated more often, Ariah or Diag'EC?

Ariah ships an update fortnightly, and Diag'EC fortnightly. Most recently, Ariah was updated on October 9, 2026 and Diag'EC on October 9, 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.*