Comparison

電卓&ストップウォッチ vs Geek Math

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

Head to head
About

電卓&ストップウォッチ

This app combines a stopwatch, numerical counter, and calculator into a single, easy-to-use interface. It allows for simultaneous operation of all three tools, simplifying daily tasks.

Highlights
  • Simultaneous operation
  • Stopwatch
  • Numerical counter
  • Calculator
  • Simple interface
Features
Read full description

日々の生活でよく使う「ストップウォッチ」「数値カウンター」「電卓」を1つの画面で同時に操作できるように設計しました。 シンプルな簡単操作でそれぞれの機能を独立して使用することができます。

About

Geek Math

This calculator app features an intuitive column layout for multiple equations, allowing real-time modification of numbers and operators. It offers interactive linking of numbers and a unique lock feature to protect important values.

Highlights
  • Intuitive column layout
  • Real-time equation modification
  • Linked numbers for interactive calculation
  • Lock feature for number protection
  • Multi-line display
  • Theme selection
Features
Read full description

* Intuitive column layout displaying multiple equations on the same screen * Ability to modify operands and operators at any time * Linked numbers that calculate interactively in real-time The calculator's display and operation have been redesigned from the ground up. Calculator Features: - Multi-line Display: Equations are clearly displayed line by line, with the length of numbers and operators automatically adjusted to fit the screen width. - Equation Modification: Freely select and change numbers within equations. Operators can also be modified to alter the results. - Linking and Interaction: Numbers in links update interactively. A single number can be linked to multiple numbers. - Theme Selection: Choose from white, black, brown, and more than three different theme colors. - Delete Functions: "AC" for full clear, erasing the entire calculator screen. "R" for line clear, removing one line from the list. "C" for clear, resetting a number to zero. "BS" for backspace, deleting the previous input. - Lock Feature: Replaces traditional memory functions with a more intuitive lock feature. Protect numbers you don't want to delete with a single button lock. - Save Previous Equations: Even if you restart your device, leave the application unopened for an extended period, or switch between applications, previous equations will be saved. Give the Geek Calculator a try! Perhaps this is the perfect calculator application for you.

Screenshots

電卓&ストップウォッチ1 screens
Geek Math4 screens

Verdict

The call

The clearest difference is in-app purchases: 電卓&ストップウォッチ at none against Geek Math's 1. On price, review sentiment, update cadence and ads 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. Geek Math sells 1 one-off in-app purchase. 電卓&ストップウォッチ asks for nothing beyond the download.

UpkeepUpdate frequency

電卓&ストップウォッチ ships an update every 19 months, Geek Math every 10 months. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
電卓&ストップウォッチ versus Geek Math: the parameters behind the verdict, then further details
Parameter電卓&ストップウォッチGeek Math
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 19 monthsEvery 10 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size19 MB29 MB
Age rating4+4+
DeveloperAmetiarQQ TSUBASA

Customer experience

電卓&ストップウォッチ

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Geek Math

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

電卓&ストップウォッチ

No in-app purchases

1 purchases

Geek Math

One-time1
  • Premium No ad & more math rows$1.99

Questions

Is 電卓&ストップウォッチ free?
電卓&ストップウォッチ is free to download, with no in-app purchases.
Is Geek Math free?
Geek Math is free to download, with in-app purchases available.
Do 電卓&ストップウォッチ or Geek Math have ads?
Both 電卓&ストップウォッチ and Geek Math show ads.
Which is updated more often, 電卓&ストップウォッチ or Geek Math?
電卓&ストップウォッチ ships an update every 19 months, and Geek Math every 10 months. Most recently, 電卓&ストップウォッチ was updated on September 8, 2026 and Geek Math on September 9, 2026.

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