Comparison

電卓 水色 vs RedoCalc

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

Head to head
About

電卓 水色

Features
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シンプルな水色電卓です。

About

RedoCalc

Features
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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

電卓 水色1 screens
RedoCalc3 screens

Verdict

The call

The clearest difference is update cadence: RedoCalc at every 3 days against 電卓 水色's every 23 months. 電卓 水色's advantage is device support (3 vs 1) and iOS requirement (15.0 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

電卓 水色 ships an update every 23 months, RedoCalc every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 3 level
電卓 水色 versus RedoCalc: the parameters behind the verdict, then further details
Parameter電卓 水色RedoCalc
PriceFreeFree
Update frequencyEvery 23 monthsEvery 3 days — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size19 MB3 MB
Age rating4+4+
Developerkota tadaToshiyuki Kuwabara

In-app purchases

None

電卓 水色

No in-app purchases

None

RedoCalc

No in-app purchases

Questions

Is 電卓 水色 free?
電卓 水色 is free to download, with no in-app purchases.
Is RedoCalc free?
RedoCalc is free to download, with no in-app purchases.
Do 電卓 水色 or RedoCalc have ads?
Both 電卓 水色 and RedoCalc show ads.
Which is updated more often, 電卓 水色 or RedoCalc?
電卓 水色 ships an update every 23 months, and RedoCalc every 3 days. Most recently, 電卓 水色 was updated on October 24, 2026 and RedoCalc on October 25, 2026.

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