PowerReader Lite vs Rotational Speed Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PowerReader Lite
This application allows users to view a wide range of document and image file formats, including text, PDF, and office documents. It offers features like full-text search, online translation, and automatic saving of reading progress. The app supports landscape mode and various text encoding options for a comfortable reading experience.
- Supports txt, pdf, png, jpg, doc, xls, ppt, and more
- Landscape view mode
- Diverse text encoding options
- Full text search
- Online translation engine
- Automatically saves last reading point
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PowerReader is a simple but powerful reading tool. Features: - It is available to view the files with various formats as below: txt, pdf, png, jpg, tiff, gif, bmp, htm, html, doc, xls, ppt, docx, xlsx, pptx. - Supports landscape view mode. - Diverse kinds of encoding for txt reading. - Turning pages forward or backward quickly. - Uploading files through iTunes. - Automatic line breaks. - Full text search, you can easily search the entire text. - Online Translation engine. - Automatically save the last reading point. - Automatically separate the big txt file to accelerate the access speed - More features in full edition: - It is also available to play mp3 & mp4 files. - Supports Google docs downloading. - Supports "Open-in" feature, you can open the supported data from mail, safari or some other APPs that supported open-in feature. - Various types of font for txt reading. - Text color and background color setting. - Bookmark feature. - Single/multi page display for PDF viewer.
Rotational Speed Converter
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The Rotational Speed Converter application converts the input rotational speed into 4 units. The units to be converted are rpm, rps, deg/s, and rad/s. Simply enter the rotational speed value and select the unit of rotational speed with the unit selection button, the value converted into 4 units will be displayed.
Screenshots
Verdict
The clearest difference is price: PowerReader Lite at Free against Rotational Speed Converter's $1.99. PowerReader Lite also leads on update cadence (every 10 days vs every 10 months) and iOS requirement (8.0 vs 15.6). On 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
PowerReader Lite is free to download; Rotational Speed Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PowerReader Lite ships an update every 10 days, Rotational Speed Converter every 10 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.
| Parameter | PowerReader Lite | Rotational Speed Converter |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 53.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 冠兰 姜 | Kei Suefuji |
In-app purchases
PowerReader Lite
No in-app purchases
Rotational Speed Converter
No in-app purchases
Questions
Is PowerReader Lite free?
Is Rotational Speed Converter free?
Do PowerReader Lite or Rotational Speed Converter have ads?
Which is updated more often, PowerReader Lite or Rotational Speed Converter?
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