GPS時速表 vs 只为你而护眼
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPS時速表
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The GPS speedometer is a versatile tool designed for driving, cycling, and sports. Not only does it display real-time speed, it also integrates map navigation, acceleration testing, and a video HUD to fully record every journey. Key Features: • Speedometer: Accurately displays real-time speed with kilometer/mile switching. • Map Mode: Use the direction of travel or north as the top to keep track of your location at all times. • Acceleration Mode: Supports 0-100 km/h and 0-400 m tests. • Video Mode: Overlays speed, mileage, and other information on the HUD, preserving driving footage. • Trip Log: Automatically saves distance, time, average speed, and maximum speed. • Playback: Replays your entire route for easy review and analysis. • Trip Sharing: Export your trip data with one click and easily share it with friends. Suitable for cars, motorcycles, bicycles, and running. Simple to use, install and use right out of the box.
只为你而护眼
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按屏幕物理尺寸绘制的标准对数视力表 只为你而护眼把国标《GB 11533—2011 标准对数视力表》搬进 iPhone。视标大小不是把图片放大缩小,而是按检测距离和五角分视角严格算出毫米数,再按你这台设备的屏幕 PPI 换算成像素——每一行都画到它该有的真实大小。 在家站到设定距离外,就能完成一次和纸质视力表同样标准的自查,结果自动留档,长期追踪视力的升降。 ■ 核心功能 按物理尺寸绘制视标 距离与视标大小是绑定的:3 米处和 5 米处需要的视标并不一样大。App 按你设定的距离实时重算每一行,而不是固定一张图。 银行卡校准屏幕 内置常见机型的屏幕参数;未收录的机型拿一张银行卡贴着屏幕拉一下滑块,即可完成校准。 引导式 E 字检测 受试者在远处口述 E 字开口方向,旁边的人按下对应按钮;说不准就选「看不清」,猜对不算数。逐行推进,自动判定通过的最高行。 五分记录法 + 小数记录法 结果同时给出 5.0 / 1.0 两种写法,覆盖国标全部 14 行(4.0~5.3,即小数 0.1~2.0),并附完整对照表。 左右眼分别留档 左眼、右眼、双眼分别记录,首页并排显示最近一次结果——两眼相差一行以上是值得留意的信号,放在一起才看得出来。 账号与云端同步 用 Apple ID 登录后记录归属云端,换手机或重装后登录同一个 Apple ID 即可取回全部历史。不登录也能正常使用。 视力表模式 想按传统方式整屏查看,可随时切换。
Screenshots
Verdict
The clearest difference is in-app purchases: 只为你而护眼 at none against GPS時速表's 1. 只为你而护眼 also leads on ads (none vs shown). On price, device support and iOS requirement 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. GPS時速表 sells 1 one-off in-app purchase. 只为你而护眼 asks for nothing beyond the download.
| Parameter | GPS時速表 | 只为你而护眼 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 113 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | CHAN TZU YI | 鑫 王 |
In-app purchases
GPS時速表
- Unlock Premium & No Ads$19.99
只为你而护眼
No in-app purchases









