# iAlignTest vs JS

The clearest difference is update cadence: JS at every 4 weeks against iAlignTest's every 32 months. iAlignTest's advantage is iOS requirement (15.0 vs 26.0). 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.

iAlignTest ships an update every 32 months, JS every 4 weeks. The most recent releases landed on October 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | iAlignTest | JS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 4 weeks** |
| Size | 8 MB | 17 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [JS-METALS SP. Z O.O.](https://appshunter.io/developer/1814799225) |

## What reviewers say

### iAlignTest

[App page](https://appshunter.io/ios/app/ialigntest/id535606893)

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

**In-app purchases:** none


### JS

[App page](https://appshunter.io/ios/app/js-metals/id6746038055)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iAlignTest free?

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

### Is JS free?

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

### Do iAlignTest or JS have ads?

Neither iAlignTest nor JS shows ads.

### Which is updated more often, iAlignTest or JS?

iAlignTest ships an update every 32 months, and JS every 4 weeks. Most recently, iAlignTest was updated on October 14, 2026 and JS on September 26, 2026.

---

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