# SmartML vs XS Light

The clearest difference is update cadence: SmartML at fortnightly against XS Light's every 2 months. SmartML also leads on iOS requirement (8.0 vs 13.0). 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.

SmartML ships an update fortnightly, XS Light every 2 months. The most recent releases landed on October 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | SmartML | XS Light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 11 MB | 28 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HuiZhou NewEnergy](https://appshunter.io/developer/1190821504) | [章锋 李](https://appshunter.io/developer/6780313521) |

## What reviewers say

### SmartML

[App page](https://appshunter.io/ios/app/smartml/id1474221209)

**Features:** macOS Compatibility

**In-app purchases:** none


### XS Light

[App page](https://appshunter.io/ios/app/xs-light/id6758135995)

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartML free?

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

### Is XS Light free?

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

### Do SmartML or XS Light have ads?

Neither SmartML nor XS Light shows ads.

### Which is updated more often, SmartML or XS Light?

SmartML ships an update fortnightly, and XS Light every 2 months. Most recently, SmartML was updated on October 4, 2026 and XS Light on September 28, 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.*