# 壁纸美图 vs Timer4

The clearest difference is in-app purchases: 壁纸美图 at none against Timer4's 1. 壁纸美图 also leads on iOS requirement (15.0 vs 26.1). Timer4's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Timer4 sells 1 one-off in-app purchase. 壁纸美图 asks for nothing beyond the download.

壁纸美图 ships an update every 2 months, Timer4 every 3 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 壁纸美图 | Timer4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (5 ratings)](https://appshunter.io/ios/app/timer4-gravity-timer/id6755321732/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 44.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 3 MB |
| Requires iOS | **15.0** | 26.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Jidong Chen](https://appshunter.io/developer/978533515) | [Goateraction](https://appshunter.io/developer/1647805479) |

## What reviewers say

### 壁纸美图

[App page](https://appshunter.io/ios/app/id978533517)

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

**In-app purchases:** none


### Timer4

[App page](https://appshunter.io/ios/app/timer4-gravity-timer/id6755321732)

This app offers a unique timer experience by automatically adjusting countdown durations based on your device's orientation. Simply rotate your phone to switch between preset intervals with a physics-driven interface and immersive haptic feedback.

**Highlights:** Physics-based interface, Instant duration switching via rotation, Smart motion detection, Immersive haptic feedback, Customizable timer presets, Intuitive orientation control

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is 壁纸美图 free?

壁纸美图 is free to download, with no in-app purchases.

### Is Timer4 free?

Timer4 is free to download, with in-app purchases available.

### Do 壁纸美图 or Timer4 have ads?

壁纸美图 shows ads; Timer4 does not.

### Which is updated more often, 壁纸美图 or Timer4?

壁纸美图 ships an update every 2 months, and Timer4 every 3 weeks. Most recently, 壁纸美图 was updated on November 1, 2026 and Timer4 on November 6, 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.*