STJ79 vs R
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
R
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A tool for millimeter-wave radar debugging
Screenshots
Verdict
The clearest difference is update cadence: R at fortnightly against STJ79's every 4 months. R 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, R fortnightly. The most recent releases landed on October 4, 2026 and October 19, 2026 respectively.
| Parameter | STJ79 | R |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Fortnightly — 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 | 48 MB |
| Age rating | 4+ | 17+ |
| Developer | 亚男 杨 | 坚栋 王 |
In-app purchases
STJ79
No in-app purchases
R
No in-app purchases
