# Use It Up vs ZenLog

The clearest difference is iOS requirement: Use It Up at 17.0 against ZenLog's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Use It Up sells 1 one-off in-app purchase and ZenLog sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Use It Up ships an update every 3 days, ZenLog every 2 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Use It Up | ZenLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 5 MB | 11 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [绅士 李](https://appshunter.io/developer/1781145146) | [Yutaka Ino](https://appshunter.io/developer/1780101465) |

## What reviewers say

### Use It Up

[App page](https://appshunter.io/ios/app/use-it-up-regularity-tracker/id6738624943)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Account | $2.99 | one-time |


### ZenLog

[App page](https://appshunter.io/ios/app/zenlog-habit-tracker/id6752211819)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |


## Frequently asked questions

### Is Use It Up free?

Use It Up is free to download, with in-app purchases available.

### Is ZenLog free?

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

### Do Use It Up or ZenLog have ads?

Neither Use It Up nor ZenLog shows ads.

### Which is updated more often, Use It Up or ZenLog?

Use It Up ships an update every 3 days, and ZenLog every 2 days. Most recently, Use It Up was updated on October 24, 2026 and ZenLog on October 11, 2026.

---

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