# Dian Dian vs Tempus

The clearest difference is ads: Tempus at none against Dian Dian's shown. Dian Dian's advantage is update cadence (every 5 days vs every 2 weeks) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Dian Dian sells 3 in-app purchases, starting at $1.99 per month and Tempus sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Dian Dian ships an update every 5 days, Tempus every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Dian Dian | Tempus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 65 MB | 17 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Override SAS](https://appshunter.io/developer/1888186144) | [Sofronie Albu](https://appshunter.io/developer/1895824197) |

## 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 |


### Tempus

[App page](https://appshunter.io/ios/app/tempus-habit-tracker/id6764538304)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tempus Pro | $3.99 | per month |
| Tempus Pro | $24.99 | per year |


## Frequently asked questions

### Is Dian Dian free?

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

### Is Tempus free?

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

### Do Dian Dian or Tempus have ads?

Dian Dian shows ads; Tempus does not.

### Which is updated more often, Dian Dian or Tempus?

Dian Dian ships an update every 5 days, and Tempus every 2 weeks. Most recently, Dian Dian was updated on October 31, 2026 and Tempus on October 31, 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.*