# 汽车在线 vs GPS51

The clearest difference is rating: GPS51 at 3.7 against 汽车在线's 2.7. GPS51 also leads on update cadence (every 4 days vs fortnightly) and review sentiment (57% vs 46%). 汽车在线's advantage is ratings volume (14 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GPS51 holds the better App Store score, 3.7 against 2.7. Both are backed by a comparable volume of ratings — 14 and 3 respectively. Written reviews point the same way: 46% of 汽车在线's written reviews are positive against 57% of GPS51's.

汽车在线 ships an update fortnightly, GPS51 every 4 days. Both last shipped on September 21, 2026.

## The numbers

| Metric | 汽车在线 | GPS51 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (14 ratings)](https://appshunter.io/ios/app/gpsoonet/id789568297/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/gps51/id1503310033/reviews)** |
| Number of ratings | **14** | 3 |
| Positive reviews | 46.4% of reviews | **56.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | Free |
| Size | 72 MB | 121 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [深圳市谷米万物科技有限公司](https://appshunter.io/developer/1740706269) | [深圳安诺盛科技有限公司](https://appshunter.io/developer/1078143908) |

## What reviewers say

### 汽车在线

[App page](https://appshunter.io/ios/app/gpsoonet/id789568297)

Monitor your vehicle's condition and location in real-time. View vehicle lists, track routes historically and live, and check road conditions with different icons.

**Highlights:** Real-time vehicle tracking, Historical route playback, Multi-vehicle monitoring, Reverse address lookup, Road condition display

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

**In-app purchases:** none


### GPS51

[App page](https://appshunter.io/ios/app/gps51/id1503310033)

Monitor and manage the location, historical routes, and alerts for various trackers and IoT devices. View real-time fuel consumption, video feeds, and two-way audio. Supports multiple tracker protocols and IoT devices.

**Highlights:** Real-time location tracking, Historical route playback, Alerts and geofencing, Fuel consumption monitoring, Video and audio streaming, Support for various tracker protocols

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

**In-app purchases:** none


## Frequently asked questions

### Is 汽车在线 free?

汽车在线 is free to download, with no in-app purchases.

### Is GPS51 free?

GPS51 is free to download, with no in-app purchases.

### Which has better reviews, 汽车在线 or GPS51?

GPS51 is rated higher. 汽车在线 averages 2.7 out of 5 from 14 ratings, while GPS51 averages 3.7 from 3 ratings.

### Do 汽车在线 or GPS51 have ads?

Neither 汽车在线 nor GPS51 shows ads.

### Which is updated more often, 汽车在线 or GPS51?

汽车在线 ships an update fortnightly, and GPS51 every 4 days. Most recently, 汽车在线 was updated on September 21, 2026 and GPS51 on September 21, 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.*