Latch vs 嗖嗖Fly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Latch
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Latch 是一款协助用户管理和锁定App，可以用于保护自己的隐私和防止别人打开了不该打开的应用。
嗖嗖Fly
This app uses advanced algorithms to scan the sky and identify satellite orbits in real-time. It offers a 3D visualization of constellations and allows users to generate personalized posters of their findings. It's designed for users interested in space technology and celestial observation.
- One-click sky scanning
- Real-time satellite orbit tracking
- 3D constellation visualization
- Personalized 'sky scan' posters
- Integration with Beidou/GPS data
- Optimized scanning algorithms
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新版气象，精准覆盖低空多高度层气象数据，搭载智能安全评估体系，综合各项气象要素自动生成飞行安全参考评级。 各类不利飞行天气会及时推送提醒，帮你提前预判飞行环境隐患，有效提升飞行安全性，减少各类飞行意外发生。
Screenshots
Verdict
The clearest difference is price: 嗖嗖Fly at Free against Latch's $0.99. 嗖嗖Fly also leads on iOS requirement (13.0 vs 16.0). Latch's advantage is ads (none vs shown) and update cadence (every 6 days vs fortnightly). On 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
嗖嗖Fly is free to download; Latch costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Latch ships an update every 6 days, 嗖嗖Fly fortnightly. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.
| Parameter | Latch | 嗖嗖Fly |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 124 MB |
| Age rating | 17+ | 4+ |
| Developer | 有伟 董 | 北京安擎智飞科技有限公司 |
In-app purchases
Latch
No in-app purchases
嗖嗖Fly
No in-app purchases
