# SmartTracker Mobile vs Zill

The clearest difference is in-app purchases: SmartTracker Mobile at none against Zill's 1. SmartTracker Mobile also leads on ads (none vs shown) and iOS requirement (15.2 vs 18.0). Zill's advantage is update cadence (every 11 days vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Zill sells 1 one-off in-app purchase. SmartTracker Mobile asks for nothing beyond the download.

SmartTracker Mobile ships an update every 5 months, Zill every 11 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | SmartTracker Mobile | Zill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 11 days** |
| Size | 61 MB | 14 MB |
| Requires iOS | **15.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ABB Information Systems AG](https://appshunter.io/developer/1026885389) | [Tariq Al-aqrabawi](https://appshunter.io/developer/1877383192) |

## What reviewers say

### SmartTracker Mobile

[App page](https://appshunter.io/ios/app/smarttracker-mobile/id6499036685)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zill

[App page](https://appshunter.io/ios/app/zill-sun-and-shade/id6815185313)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zill Pro | $5.99 | one-time |


## Frequently asked questions

### Is SmartTracker Mobile free?

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

### Is Zill free?

Zill is free to download, with in-app purchases available.

### Do SmartTracker Mobile or Zill have ads?

Zill shows ads; SmartTracker Mobile does not.

### Which is updated more often, SmartTracker Mobile or Zill?

SmartTracker Mobile ships an update every 5 months, and Zill every 11 days. Most recently, SmartTracker Mobile was updated on November 8, 2026 and Zill on November 6, 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.*