# 海拔与相机 vs Timer4

The clearest difference is rating: 海拔与相机 at 5.0 against Timer4's 3.8. 海拔与相机 also leads on in-app purchases (none vs 1) and update cadence (every 8 days vs every 3 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Timer4 sells 1 one-off in-app purchase. 海拔与相机 asks for nothing beyond the download.

海拔与相机 holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

海拔与相机 ships an update every 8 days, Timer4 every 3 weeks. Both last shipped on October 9, 2026.

## The numbers

| Metric | 海拔与相机 | Timer4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6751531266/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/timer4-gravity-timer/id6755321732/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | — | 28.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 76 MB | 3 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [成都狸猫打工科技有限公司](https://appshunter.io/developer/1679282862) | [Goateraction](https://appshunter.io/developer/1647805479) |

## What reviewers say

### 海拔与相机

[App page](https://appshunter.io/ios/app/id6751531266)

Capture photos with real-time altitude and location data. Add custom watermarks with geographical information, apply filters, and easily share your adventures. Perfect for documenting hikes, travels, or everyday moments with precise context.

**Highlights:** Real-time altitude display, Geographic location recording, Customizable watermarks, Photo filters, One-click social sharing, Save photos to album

**Features:** macOS Compatibility

**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

**In-app purchases (1)**

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


## Frequently asked questions

### Is 海拔与相机 free?

海拔与相机 is free to download, with no in-app purchases.

### Is Timer4 free?

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

### Which has better reviews, 海拔与相机 or Timer4?

海拔与相机 is rated higher. 海拔与相机 averages 5.0 out of 5 from 3 ratings, while Timer4 averages 3.8 from 5 ratings.

### Do 海拔与相机 or Timer4 have ads?

Neither 海拔与相机 nor Timer4 shows ads.

### Which is updated more often, 海拔与相机 or Timer4?

海拔与相机 ships an update every 8 days, and Timer4 every 3 weeks. Most recently, 海拔与相机 was updated on October 9, 2026 and Timer4 on October 9, 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.*