STJ79 vs Radar Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STJ79
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本应用用于我司道闸雷达的调试，主要功能如下： 1. 雷达参数读取、设置 2.雷达固件升级 3.雷达目标信息查看 4.Wi-Fi/BLE参数读取、设置
Radar Assistant
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Barrier gate control radar is developed for the entrance and exit management of parking lots or underground garages. It can precisely control the rising and falling of the gate rod by cooperating with the main control board of the gate control system, which could effectively avoid the "accidental injury" of the gate rod to the passing vehicles or pedestrians in the radar field of view,and realize intelligent anti smashing. radar adopts the highly integrated RF chip SOC scheme, which has the characteristics of small size, low cost, all-weather working capability, high detection sensitivity, high precision, easy to debug&installation, very good stability and reliability.
Screenshots
Verdict
The clearest difference is update cadence: Radar Assistant at every 4 weeks against STJ79's every 4 months. Radar Assistant also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support 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.
STJ79 ships an update every 4 months, Radar Assistant every 4 weeks. The most recent releases landed on May 13, 2026 and September 16, 2026 respectively.
| Parameter | STJ79 | Radar Assistant |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 50 MB |
| Age rating | 4+ | 17+ |
| Developer | 亚男 杨 | 荣强 王 |
In-app purchases
STJ79
No in-app purchases
Radar Assistant
No in-app purchases
