Comparison

OpenCCman Open Chinese Convert vs RedoCalc

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

OpenCCman Open Chinese Convert

Features
Read full description

Convert Chinese text on iPhone and iPad, and add script conversion to your own Shortcuts workflows. OpenCCman brings local text conversion, TXT files and a native source/result workspace together. Choose Simplified Chinese, OpenCC Traditional, Taiwan Standard with Taiwan idioms, or Hong Kong Traditional. Advanced character-variant and regional wording options remain available. Simplified output is not a complete reverse conversion of Taiwan-specific vocabulary. Start with a blank draft, paste your text, or fill in an example when you need one. Compare source and result side by side or stacked on iPad. The compact iPhone Convert button leaves more room for reading. Clear Source asks before removing the current source and result. On iOS and iPadOS 16 or later, the free Convert Chinese Text action accepts text and one of four presets, then returns the result to the next Shortcuts action. Connect it to clipboard or file actions without changing an open draft. It does not use the homepage daily allowance; text input is limited to 10 MiB in UTF-8. Import or drop one UTF-8 TXT file up to 10 MiB, including files with a BOM. Copy or share the result, or export the latest successful conversion as UTF-8 TXT without a BOM. Line endings, blank lines and Unicode text are preserved. Save Big5 or GBK files as UTF-8 first. Batch files and files over 10 MiB are not supported on iPhone or iPad, including with Pro. Free users can complete 12 successful homepage conversions per day. Importing, exporting and changing presets do not count. Lifetime Pro is a one-time purchase that removes the homepage limit and in-app recommendations. View purchase status or restore purchases in Settings. Powered by OpenCC, text conversion runs locally on your device. OpenCCman requires iOS or iPadOS 15 or later. Open source under the MIT license: https://github.com/gewill/OpenCCman

About

RedoCalc

Features
Read full description

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 Γ—.) If you tap β€œ=”, 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

OpenCCman Open Chinese Convert4 screens
RedoCalc3 screens

Verdict

The call

The clearest difference is in-app purchases: RedoCalc at none against OpenCCman Open Chinese Convert's 1. RedoCalc also leads on update cadence (every 3 days vs every 3 months). OpenCCman Open Chinese Convert's advantage is ads (none vs shown) and device support (4 vs 1). On price there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. OpenCCman Open Chinese Convert sells 1 one-off in-app purchase. RedoCalc asks for nothing beyond the download.

UpkeepUpdate frequency

OpenCCman Open Chinese Convert ships an update every 3 months, RedoCalc every 3 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

Scorecard5 real differences Β· 1 level
OpenCCman Open Chinese Convert versus RedoCalc: the parameters behind the verdict, then further details
ParameterOpenCCman Open Chinese ConvertRedoCalc
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 days β€” better
AdsNo β€” betterYes
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod, Mac β€” betteriPhone
Requires iOS15.0 β€” better18.0
Further details β€” not scored
Size21 MB3 MB
Age rating4+4+
Developer伟 θ‘›Toshiyuki Kuwabara

In-app purchases

1 purchases

OpenCCman Open Chinese Convert

One-time1
  • Lifetime Pro$2.99
None

RedoCalc

No in-app purchases

Questions

Is OpenCCman Open Chinese Convert free?
OpenCCman Open Chinese Convert is free to download, with in-app purchases available.
Is RedoCalc free?
RedoCalc is free to download, with no in-app purchases.
Do OpenCCman Open Chinese Convert or RedoCalc have ads?
RedoCalc shows ads; OpenCCman Open Chinese Convert does not.
Which is updated more often, OpenCCman Open Chinese Convert or RedoCalc?
OpenCCman Open Chinese Convert ships an update every 3 months, and RedoCalc every 3 days. Most recently, OpenCCman Open Chinese Convert was updated on October 7, 2026 and RedoCalc on October 11, 2026.

Other comparisons