Comparison

RedoCalc vs SmartCalc Easy

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

Head to head
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 ×.) 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.

About

SmartCalc Easy

Features
Read full description

SmartCalc - Minimalist Calculator with Precision Editing. - Premium User Experience: Enjoy a seamless experience with eye-friendly color palettes and subtle haptic feedback. - Smart History & Ans: View your entire calculation history at a glance and easily reuse previous results (Ans). - Effortless Editing: Made a mistake? Move the cursor to any part of your formula and fix it instantly—no need to start over. - Universal Compatibility: Experience a perfectly optimized layout for both iPhone and iPad environments.

Screenshots

RedoCalc3 screens
SmartCalc Easy4 screens

Verdict

The call

The clearest difference is update cadence: RedoCalc at every 3 days against SmartCalc Easy's every 3 weeks. On price, 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

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

RedoCalc ships an update every 3 days, SmartCalc Easy every 3 weeks. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 5 level
RedoCalc versus SmartCalc Easy: the parameters behind the verdict, then further details
ParameterRedoCalcSmartCalc Easy
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size3 MB5 MB
Age rating4+4+
DeveloperToshiyuki KuwabaraYounghan Kim

In-app purchases

None

RedoCalc

No in-app purchases

None

SmartCalc Easy

No in-app purchases

Questions

Is RedoCalc free?
RedoCalc is free to download, with no in-app purchases.
Is SmartCalc Easy free?
SmartCalc Easy is free to download, with no in-app purchases.
Do RedoCalc or SmartCalc Easy have ads?
Both RedoCalc and SmartCalc Easy show ads.
Which is updated more often, RedoCalc or SmartCalc Easy?
RedoCalc ships an update every 3 days, and SmartCalc Easy every 3 weeks. Most recently, RedoCalc was updated on September 25, 2026 and SmartCalc Easy on October 7, 2026.

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