USB扩展屏 vs Farsight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
USB扩展屏
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USB扩展屏可以将您的iOS设备变成一个便携显示器,通过视频采集卡,直接采集USB数据,支持声音采集,高清无延迟 支持手势快速截屏与录屏 以下为各设备连接教程: switch+底座 / xbox / ps - 视频采集卡 - iPad/iPhone
Farsight
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Staring at screens all day leaves your eyes dry, sore and tired. Farsight turns the eye-doctor-recommended 20-20-20 rule into a habit you actually keep: every 20 minutes of screen time, look 20 feet (about 6 m) away for 20 seconds to relax your ciliary muscles and ease digital eye strain. And keeping it up isn't a chore, because a cat lives on your screen. The more punctually you take your breaks, the livelier and more affectionate it becomes; let your eyes slip and it waits for you, a little bored. CORE FEATURES (FREE) · 20-20-20 reminders — custom intervals, active hours and rest days · A hand-drawn cat that breathes, plays and naps, its mood shifting with your streak · Daily and weekly stats so your habit takes shape · Earn treats by resting on time, then adopt cats and unlock decorations in the Cattery · Streaks and milestone badges that make consistency rewarding FARSIGHT PRO (UPGRADE) · Seasonal window scenes — let your cat gaze out on autumn and winter · Apple Watch reminders — rest right from your wrist · 30-day statistics for the full picture · Every premium cat and decoration unlocked at once, no grinding · 7-day free trial, or buy once and keep it forever ABOUT EYE HEALTH 20-20-20 is widely recommended eye-care advice: looking into the distance relaxes the ciliary muscles that stay tense during close-up screen work. Farsight simply makes it something you want to do every day. Protect your eyes, one 20 minutes at a time. SUPPORT & PRIVACY · Support: https://eyecare.w4xiaoyao.space/support.html · Privacy Policy: https://eyecare.w4xiaoyao.space/privacy.html Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: USB扩展屏 at daily against Farsight's every 10 days. 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. USB扩展屏 sells 1 one-off in-app purchase and Farsight sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
USB扩展屏 ships an update daily, Farsight every 10 days. Both last shipped on October 25, 2026.
| Parameter | USB扩展屏 | Farsight |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 0 MB | 207 MB |
| Age rating | 4+ | 4+ |
| Developer | 晓满 李 | 登宇 郁 |
In-app purchases
USB扩展屏
- 完整版$0.99
Farsight
- EyeCare Pro$2.99









