# Don't Lose Count vs Luna Sync

The clearest difference is ads: Luna Sync at none against Don't Lose Count's shown. Don't Lose Count's advantage is update cadence (every 3 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Don't Lose Count ships an update every 3 days, Luna Sync every 2 weeks. The most recent releases landed on October 1, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Don't Lose Count | Luna Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Size | 19 MB | 22 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [JIHA YOON](https://appshunter.io/developer/1788474472) | [发亮 刘](https://appshunter.io/developer/1830179467) |

## What reviewers say

### Don't Lose Count

[App page](https://appshunter.io/ios/app/dont-lose-count/id6740137668)

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

**In-app purchases:** none


### Luna Sync

[App page](https://appshunter.io/ios/app/luna-sync-cycle-tracker/id6782758960)

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

**In-app purchases:** none


## Frequently asked questions

### Is Don't Lose Count free?

Don't Lose Count is free to download, with no in-app purchases.

### Is Luna Sync free?

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

### Do Don't Lose Count or Luna Sync have ads?

Don't Lose Count shows ads; Luna Sync does not.

### Which is updated more often, Don't Lose Count or Luna Sync?

Don't Lose Count ships an update every 3 days, and Luna Sync every 2 weeks. Most recently, Don't Lose Count was updated on October 1, 2026 and Luna Sync on September 10, 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.*