# Smart Tanks vs xtrackr

The clearest difference is in-app purchases: Smart Tanks at none against xtrackr's 2. Smart Tanks also leads on update cadence (weekly vs monthly) and iOS requirement (11.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. xtrackr sells 2 in-app purchases, starting at $0.99 per month. Smart Tanks asks for nothing beyond the download.

Smart Tanks ships an update weekly, xtrackr monthly. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Smart Tanks | xtrackr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 31 MB | 71 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Thincke Electronic Technology Co., Ltd.](https://appshunter.io/developer/1681561680) | [Oluwagbamila Aremu](https://appshunter.io/developer/1824394040) |

## What reviewers say

### Smart Tanks

[App page](https://appshunter.io/ios/app/smart-tanks/id6447514592)

**Features:** macOS Compatibility

**In-app purchases:** none


### xtrackr

[App page](https://appshunter.io/ios/app/xtrackr-subscription-tracker/id6749211803)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $9.99 | per year |


## Frequently asked questions

### Is Smart Tanks free?

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

### Is xtrackr free?

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

### Do Smart Tanks or xtrackr have ads?

Neither Smart Tanks nor xtrackr shows ads.

### Which is updated more often, Smart Tanks or xtrackr?

Smart Tanks ships an update weekly, and xtrackr monthly. Most recently, Smart Tanks was updated on September 28, 2026 and xtrackr on October 7, 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.*