Network Diagnostics Speed Test vs FST
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Network Diagnostics Speed Test
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Network Diagnostics App helps you see how your connection is really performing. Run a one-tap speed test for download, upload, latency, and jitter, plus a clear network quality readout—handy when home Wi-Fi stutters, the office network drops calls, or video meetings freeze. Keep results in history to compare times of day and different networks. Free features include basic speed tests plus Ping, traceroute, and DNS lookup so you can rule out common issues first. Pro is a one-time unlock: unlimited speed tests, speed history and shareable results, plus certificate checks, port scanning, LAN device scan, network diagnostics, Bufferbloat testing, signal monitoring, and more. Free users can complete up to three successful speed tests; then upgrade to Pro for unlimited testing and advanced tools. Pro is a one-time purchase for permanent unlock; price is shown in the App Store for your region. Use speed and diagnostic tools on a stable connection for best results. Data practices are described in the in-app Privacy Policy. This app provides network quality reference information only—it is not a carrier fault determination or any service guarantee.
FST
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FST-智能温控面向中国大陆 Tesla 车主，让每次上车与行驶都更接近你习惯的舒适温度。 自动提前备车 FST 可在无需用户操作的情况下自动预设车内温度，为用户备车。同时，若 10 分钟内无人上车，空调会自动关闭。 行驶中学习并调温 FST 会持续学习你的舒适偏好，当外部环境变化时，FST 会及时调整目标温度，让车内温度更贴近你的习惯。 你还可以 • 查看目标温度、车辆连接、空调与 FST 工作状态 • 查看备车、行驶调温与学习记录 • 使用“智能备车”快捷指令和自动化 • 在隐私中心查看数据说明、导出数据、撤回车辆授权或删除账户 使用要求 • 需要受支持的 Tesla 车辆、有效 Tesla 账户及可用的 Fleet API 服务 • 首次使用需完成 Tesla 官方授权与虚拟钥匙配对 • 实际控制结果取决于车辆在线状态、网络环境与 Tesla 服务可用性 FST 是独立第三方应用，与 Tesla, Inc. 无隶属、认可或合作关系。Tesla 是 Tesla, Inc. 的商标。 使用条款（Apple 标准最终用户许可协议）：https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: FST at every 2 days against Network Diagnostics Speed Test's every 3 weeks. Network Diagnostics Speed Test's advantage is iOS requirement (17 vs 26.0). 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. Network Diagnostics Speed Test sells 1 one-off in-app purchase and FST sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Network Diagnostics Speed Test ships an update every 3 weeks, FST every 2 days. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.
| Parameter | Network Diagnostics Speed Test | FST |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17 — better | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | 友健 高 | 振涛 顾 |
In-app purchases
Network Diagnostics Speed Test
- 升级高级会员$0.99
FST
- FST 月度计划$0.991 Month
- FST 年度计划$6.991 Year
