簡繁轉換器 vs RedoCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
簡繁轉換器
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The main function of this app is the conversion of Traditional and Simplified Chinese. Provides the conversion of simple traditional and simplified Chinese sentences, and the function of converting a large number of articles in the entire file, and sharing it with friends (by using the web browser to upload text file to the app).
RedoCalc
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This is a calculator for people who only use it for simple calculations, such as adding up receipts or calculating the cost of a meal split between several people, but who are always worried about whether the input was correct. As it is a simple calculator, the only operations it can perform are - Four arithmetic operations (addition, subtraction, multiplication, division) - Percentage calculations (including calculations such as consumption tax using percentages) . The results are displayed as numbers with a digit symbol. There is no complicated exponential display. The calculation proceeds in the order of the keys you enter. There is no priority for multiplication or division. The formulas you enter are displayed in order in the upper area as a history. If you tap the white part, it will turn yellow and you will be able to modify that part. (You can modify not only numbers, but also arithmetic symbols such as + and ×.) If you tap “=”, the expressions from the first line to the last line will be recalculated. The result will be automatically copied, so you can switch to other apps and paste the value there.
Screenshots
Verdict
The clearest difference is update cadence: RedoCalc at every 3 days against 簡繁轉換器's every 6 months. 簡繁轉換器's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 18.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
簡繁轉換器 ships an update every 6 months, RedoCalc every 3 days. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.
| Parameter | 簡繁轉換器 | RedoCalc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | YI HAN TSAI | Toshiyuki Kuwabara |
In-app purchases
簡繁轉換器
No in-app purchases
RedoCalc
No in-app purchases









