Comparison

RedoCalc vs ClassicTimer

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

Head to head
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 ร—.) If you tap โ€œ=โ€, 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

ClassicTimer

Features
Read full description

ClassicTimer brings the charm of a classic kitchen timer to your iPhone. INTUITIVE DIAL Turn the dial to set your time, release to start. Tap to pause, double-tap to reset. It's that simple. 4 SCALES Switch between 6, 12, 36, and 72-minute scales. Perfect for cooking, studying, workouts, and more. LIGHT & DARK MODE Switch with a single tap. Choose the look that suits your style or time of day. WIDGETS & LIVE ACTIVITIES Start a timer right from your Home Screen widget. See real-time countdown on your Lock Screen and Dynamic Island. BACKGROUND NOTIFICATIONS Get notified when your timer is done, even while using other apps. PRO (ONE-TIME PURCHASE) โ€ข Remove all ads โ€ข Color customization (body, dial, ticks, needle, background) โ€ข Background image customization (choose from your photo library) Simple, beautiful, and uniquely yours. Terms of Use: https://10half.jp/classictimer/terms.en.html Privacy Policy: https://10half.jp/classictimer/privacy.en.html

Screenshots

RedoCalc3 screens
ClassicTimer4 screens

Verdict

The call

The clearest difference is in-app purchases: RedoCalc at none against ClassicTimer's 1. RedoCalc also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

RedoCalc ships an update every 3 days, ClassicTimer fortnightly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
RedoCalc versus ClassicTimer: the parameters behind the verdict, then further details
ParameterRedoCalcClassicTimer
PriceFreeFree
Update frequencyEvery 3 days โ€” betterFortnightly
AdsYesYes
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size3 MB8 MB
Age rating4+4+
DeveloperToshiyuki Kuwabara10HALF LLC

In-app purchases

None

RedoCalc

No in-app purchases

1 purchases

ClassicTimer

One-time1
  • ClassicTimer Pro$1.99

Questions

Is RedoCalc free?
RedoCalc is free to download, with no in-app purchases.
Is ClassicTimer free?
ClassicTimer is free to download, with in-app purchases available.
Do RedoCalc or ClassicTimer have ads?
Both RedoCalc and ClassicTimer show ads.
Which is updated more often, RedoCalc or ClassicTimer?
RedoCalc ships an update every 3 days, and ClassicTimer fortnightly. Most recently, RedoCalc was updated on October 25, 2026 and ClassicTimer on October 31, 2026.

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