999GPS vs Yi Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
999GPS
Track the real-time location and playback history of GPS devices. This app works with the 999GPS platform and compatible tracking devices to monitor vehicles, people, or pets. It offers automatic login for easy access to location data.
- Real-time location tracking
- Playback historical tracking data
- Automatic login
- Supports personal and fleet tracking
- Monitor vehicles, people, and pets
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GPS Tracker & Tracking App Software for iPhone, Display current location / Playback history tracking / Real time tracking etc, the user name and password is same with PC website login, it is not necessary to input website address and user name and password, the app software will login automatically, it is very easy to locate your tracker on your mobile phone. This app need work with tracking platform 999GPS and GPS tracking device (8XX Series) together, and can be used for tracking personal or fleet car truck bus motor taxi rent vehicles etc, also can be used for tracking kids children pets workers old peoples or criminals etc. This app need visit internet, if no Wifi can be used, it will cost GPRS data charge. GPS定位跟踪应用软件的iPhone版，显示目标当前位置/回放历史跟踪/实时跟踪等，用户名和密码和PC登录网站相同，输入用户名和密码，应用程序软件自动登录，定位设备会显示在您的手机上。这个应用程序需要使用跟踪平台999GPS和GPS跟踪设备（ CCTR-8XX系列） ，可用于跟踪个人或车队的轿车/货车/卡车/客车/长途车/巴士/电动车/出租车/摩托车/特种车/私家车/公车等，也可用于跟踪孩子/宠物/野外作业工人/老人/罪犯/越野探险人员等，此程序需要访问网络，如果没有WiFi可以使用，它会花费GPRS数据传输费。
Yi Tracker
This application allows users to track their vehicle's location, review past trips, and receive device alerts. It utilizes local phone and cloud storage to ensure a fast and responsive user experience.
- Intelligent vehicle location checking
- Vehicle history playback
- Device alarm viewing
- Cloud storage for enhanced speed
- Best user experience commitment
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YI TRACKER is with intelligent checking vehicle location, vehicle history playback tracks, viewing the device alarm etc. Local phone + server using cloud storage to enhance APP response speed, is committed to the user the best experience!
Screenshots
Verdict
The clearest difference is iOS requirement: 999GPS at 6.0 against Yi Tracker's 12.0. On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.
| Parameter | 999GPS | Yi Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.2 (25 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | — | 25 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 6.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 4 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | 国营 张 | 文清 毕 |
Customer experience
999GPS
Yi Tracker
In-app purchases
999GPS
No in-app purchases
Yi Tracker
No in-app purchases
