# Dian Dian vs Scroll Timer

The clearest difference is ads: Scroll Timer at none against Dian Dian's shown. Dian Dian's advantage is update cadence (every 4 days vs fortnightly) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Dian Dian sells 3 in-app purchases, starting at $1.99 per month and Scroll Timer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Dian Dian ships an update every 4 days, Scroll Timer fortnightly. The most recent releases landed on September 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Dian Dian | Scroll Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 58 MB | 11 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Override SAS](https://appshunter.io/developer/1888186144) | [YUSUF OCAL](https://appshunter.io/developer/6788141769) |

## What reviewers say

### Dian Dian

[App page](https://appshunter.io/ios/app/dian-dian-year-tracker/id6761432329)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $8.99 | per year |
| Premium Lifetime | $22.99 | one-time |


### Scroll Timer

[App page](https://appshunter.io/ios/app/scroll-timer-doomscroll-log/id6802965671)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scrollledger Pro Weekly | $4.99 | per 7 days |
| Scrollledger Pro Lifetime | $13.99 | one-time |


## Frequently asked questions

### Is Dian Dian free?

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

### Is Scroll Timer free?

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

### Do Dian Dian or Scroll Timer have ads?

Dian Dian shows ads; Scroll Timer does not.

### Which is updated more often, Dian Dian or Scroll Timer?

Dian Dian ships an update every 4 days, and Scroll Timer fortnightly. Most recently, Dian Dian was updated on September 15, 2026 and Scroll Timer on September 23, 2026.

---

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