# 随行GPS vs C3

The clearest difference is in-app purchases: C3 at none against 随行GPS's 3. 随行GPS's advantage is update cadence (fortnightly vs monthly) and iOS requirement (9.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. 随行GPS sells 3 in-app purchases, starting at $0.49 per 7 days. C3 asks for nothing beyond the download.

随行GPS ships an update fortnightly, C3 monthly. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 随行GPS | C3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 39 MB | 64 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [清英 陈](https://appshunter.io/developer/1382568613) | [Shenzhen Dashi Iot Technology Co.,Ltd](https://appshunter.io/developer/1598852202) |

## What reviewers say

### 随行GPS

[App page](https://appshunter.io/ios/app/gps/id1498346619)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 无限次保存照片和去除广告 | $0.49 | per 7 days |
| 无限次保存照片和去除广告 | $0.99 | per month |
| 无限次保存照片和去除广告 | $4.99 | per year |


### C3

[App page](https://appshunter.io/ios/app/c3-plus/id1598852200)

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

**In-app purchases:** none


## Frequently asked questions

### Is 随行GPS free?

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

### Is C3 free?

C3 is free to download, with no in-app purchases.

### Do 随行GPS or C3 have ads?

Neither 随行GPS nor C3 shows ads.

### Which is updated more often, 随行GPS or C3?

随行GPS ships an update fortnightly, and C3 monthly. Most recently, 随行GPS was updated on October 4, 2026 and C3 on October 3, 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.*