Comparison

Fractions Calculator vs Prime Rush

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

Head to head
About

Fractions Calculator

Perform complex calculations with mixed fractions, decimals, and brackets. Review and email your calculation history from a digital paper tape. Supports advanced operations like exponentiation.

Highlights
  • Mixed fraction and decimal arithmetic
  • Support for brackets in calculations
  • Digital paper tape for history
  • Copy and email calculation results
  • Exponentiation calculations
  • Swipe to delete entries
Features
Read full description

Our calculator does mixed fractions & decimal arithmetic with support for brackets. This covers most of the work you need to do with fractions but we also record the results to a "paper tape" which you can scroll to review (with the ability to select and copy) and you also can email it to yourself so you can see and record the sum of your labours. For example you can enter 5 3/16 + (12.11 - 1/8)*2 = to get the answer 11663/400 which you can then show as 29 63/400, or 29.1575 Or calculate 2^151 "2 to the power of 151" to get 2854495385411919762116571938898990272765493248 Remember swipe left/right to DELETE the number, line, or tape. Yes you can enter 5--1_3/4 to say 5 minus the NEGATIVE fraction 1 3/4 Check the rating and reviews, who makes the better fraction calculator in the store, we do!

About

Prime Rush

Features
Read full description

Can you factorize numbers in the blink of an eye? Challenge your brain and reflexes with Prime Rush, the ultimate prime factorization time attack game! This is not just a math drill, it is a high-speed puzzle action game where speed and accuracy are key. Perfect for students studying for exams, adults looking for brain training, and math enthusiasts who love numbers. [HOW TO PLAY] Numbers will appear on the screen. Your goal is to break them down into their prime factors before time runs out! Input the Formula: Use the intuitive keypad to enter factors like "12 -> 2^2x3". It's a Prime!: If the number is already prime, just hit the "It's Prime!" button instantly. Speed Bonus: Answer quickly to extend your time limit. Keep the combo going to achieve a high score! [KEY FEATURES] Time Attack Mode Race against the clock! Start from easy integers and work your way up to massive 3-digit numbers. Global Leaderboards: Compete with players around the world. Your nickname, score, and date are recorded when you beat your personal best. 5 Difficulty Levels: Level 1: Beginners (4 - 50) Level 5: Masters (200 - 999) Can you conquer the hardest difficulty? Practice Mode Need to study without the pressure? Practice at your own pace with no time limits. Ideal for overcoming your weak numbers and understanding the logic behind division. Note: Level 1 is free; Levels 2-5 require a Pro Plan upgrade. Built-in Factorization Calculator Includes a dedicated tool to instantly factorize any number. Use it to check your homework or explore the beauty of prime numbers. Friendly Design Featuring cute "Pochimu" characters to cheer you on. Satisfying sound effects and haptic feedback (customizable in Settings). Share your "New Record" cards directly to social media! [WHY PLAY PRIME RUSH?] Boost Mental Math: Drastically improve your calculation speed for multiplication and division. School Prep: Perfect for middle school and high school algebra preparation. Brain Teaser: A stimulating workout for your frontal cortex. Prevents brain aging with daily logic puzzles. [PRO PLAN] Unlock the full potential of Prime Rush with the Pro Plan to access all Practice Mode levels. Master every number from 4 to 999! Ready to become a Prime Master? Download Prime Rush today and start your mental math workout!

Screenshots

Fractions Calculator1 screens
Prime Rush4 screens

Verdict

The call

The clearest difference is price: Prime Rush at Free against Fractions Calculator's $0.99. Prime Rush also leads on update cadence (every 3 weeks vs every 5 months). Fractions Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown).

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

Prime Rush is free to download; Fractions Calculator costs $0.99 up front. Prime Rush sells 1 one-off in-app purchase. Fractions Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Fractions Calculator ships an update every 5 months, Prime Rush every 3 weeks. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

Scorecard6 real differences · 4 level
Fractions Calculator versus Prime Rush: the parameters behind the verdict, then further details
ParameterFractions CalculatorPrime Rush
Price$0.99Free — better
Rating4.5 (2 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17
Further details — not scored
Size41 MB21 MB
Age rating4+4+
DeveloperCorporate Smalltalk Consulting LtdAyumu Izumi

In-app purchases

None

Fractions Calculator

No in-app purchases

1 purchases

Prime Rush

One-time1
  • Pro Plan$1.99

Questions

Is Fractions Calculator free?
Fractions Calculator costs $0.99, with no in-app purchases.
Is Prime Rush free?
Prime Rush is free to download, with in-app purchases available.
Do Fractions Calculator or Prime Rush have ads?
Prime Rush shows ads; Fractions Calculator does not.
Which is updated more often, Fractions Calculator or Prime Rush?
Fractions Calculator ships an update every 5 months, and Prime Rush every 3 weeks. Most recently, Fractions Calculator was updated on October 6, 2026 and Prime Rush on September 29, 2026.

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