奈可阅读 vs Air Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
奈可阅读
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奈可阅读是一款为本地电子书打造的安静阅读工具。你可以导入 TXT、EPUB 文件,整理自己的书架,用文件夹、标签、隐藏书籍、网格/列表视图管理藏书;阅读时可自由调整字体、字号、行距、主题、背景、翻页方式和护眼模式,让每一本书都以舒服的样子呈现。奈可阅读还支持书签、批注、摘录笔记、书内搜索、语音朗读、定时关闭、阅读统计与时间轴,并可导出阅读档案或批注内容。阅读数据默认保存在本机,也可按需启用 iCloud 同步书架、进度、书签、标注和设置。
Air Ruler
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Turn your iPhone into a real, precision ruler. No need for a physical ruler — your screen becomes a true mm/cm scale. Screen Ruler Mode Place your phone next to any object. The screen displays a real millimeter and centimeter scale. Perfect for: Small objects, parts, jewelry Paper, photos, cards Screen bezels, phone cases, printed materials Anything that requires a direct, physical scale Why Air Ruler? No physical ruler needed — your phone is all you need Pure screen ruler mode, no AR complexity Clean, simple, open-and-use interface Supports cm / inch switch Use Cases DIY & crafts: materials, fabric, model parts Office & study: book dimensions, on-screen image sizes Home & daily use: check length/width of small items Quick estimation: need to know how long something is? Just use your phone Air Ruler. Measure anywhere. — Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: 奈可阅读 at Free against Air Ruler's $0.99. 奈可阅读 also leads on in-app purchases (none vs 3). Air Ruler's advantage is ads (none vs shown). On 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
奈可阅读 is free to download; Air Ruler costs $0.99 up front. Air Ruler sells 3 in-app purchases, starting at $2.99 per month. 奈可阅读 asks for nothing beyond the download.
| Parameter | 奈可阅读 | Air Ruler |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 14 months | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 31 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | 贤亮 李 | 乐祥 胡 |
In-app purchases
奈可阅读
No in-app purchases
Air Ruler
- Ruler Premium - 30days$2.991 Month
- Ruler premium - yearly$8.991 Year
- Ruler Premium - lifetime$29.99









