# Direct Astigmatic Test vs 90 Degree

The clearest difference is update cadence: Direct Astigmatic Test at every 4 days against 90 Degree's every 10 months. Direct Astigmatic Test also leads on iOS requirement (13.0 vs 15.0). 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.

Direct Astigmatic Test ships an update every 4 days, 90 Degree every 10 months. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Direct Astigmatic Test | 90 Degree |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 10 months |
| Size | 17 MB | 75 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kidme](https://appshunter.io/developer/1370765611) | [Uplyft Innovations Private Limited](https://appshunter.io/developer/1485155244) |

## What reviewers say

### Direct Astigmatic Test

[App page](https://appshunter.io/ios/app/direct-astigmatic-test-dat-app/id1372837964)

**Features:** macOS Compatibility

**In-app purchases:** none


### 90 Degree

[App page](https://appshunter.io/ios/app/90-degree/id1621277039)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Direct Astigmatic Test free?

Direct Astigmatic Test is free to download, with no in-app purchases.

### Is 90 Degree free?

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

### Do Direct Astigmatic Test or 90 Degree have ads?

Neither Direct Astigmatic Test nor 90 Degree shows ads.

### Which is updated more often, Direct Astigmatic Test or 90 Degree?

Direct Astigmatic Test ships an update every 4 days, and 90 Degree every 10 months. Most recently, Direct Astigmatic Test was updated on October 8, 2026 and 90 Degree on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*