Comparison

Quick Calculation Quiz vs Brain Drain

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

Head to head
About

Quick Calculation Quiz

Test your math skills in a timed challenge. Solve equations quickly to achieve a high score and compete with friends. It's a fun way to train your brain with both easy and challenging problems.

Highlights
  • Timed math problem solving
  • High score tracking
  • Multiplayer comparison
  • Brain training exercises
  • No calculator required
Features
Read full description

In this game you have 100 seconds to solve as many math problems (equations) as possible. Achieve a new high score, try to beat other players and your friends. Download now for free! A game always consists of both very easy and some slightly more difficult math problems. However, you should be able to solve all equations without a calculator. You will see the first math problem as soon as you tap the "Start" button. Your time begins to count down. Use the numeric keypad to type your answer and tap the enter button. The game is over either if your time is up, or as soon as you give a wrong answer. With each correct answer 1 point will be added to your score. Try to achieve a new highscore each time you play the game. Use the game center to compare your highscore with other players or your friends. Train your brain while playing the game and try to beat your own highscore, other players or your friends. This mathematics trainer is the perfect mental exercise. Try to achieve a new highscore now. Download and play for free! Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Brain Drain

Test your reflexes and quick math skills in this addictive brain game. Compete against friends and players worldwide on the leaderboard with challenging puzzles that boost IQ and memory.

Highlights
  • Quick calculations
  • Varied math sums (addition, subtraction, multiplication)
  • Competitive global leaderboard
  • Fast reaction-based gameplay
  • Nuke power-up for challenging sums
  • Brain training for IQ and memory
Features
Read full description

Are you smarter than your friends? Test out your fast reflexes and quick math skills on Brain Drain. Brain Drain is a brain game designed to make you smarter through an addictive and competitive quick math game which relies on your fast reflexes and ability to improve on your quick calculations. Brain Drain was created as a neurofeedback brain training game designed for both kids and adults. It contains elements that focus on boosting and testing your IQ and improving your memory skills. It is a cool math game with unique brain exercises that allows you to directly compete against your friends to solve the question who is smartest in your friend group. Each game you play has completely different math puzzles which will require you to have a fresh mind and your fingers ready to react to get to the top of the leaderboard. How to play? You will be given a sum at the bottom of the screen and 4 possible answers. The objective is to move the spaceship by tapping on either side of the screen into the block with the correct answer. Each time you get a correct answer your energy bar will fill up and once filled you will receive a Nuke to use which will wipe out all of the answers on the screen and give you some more time for the more challenging sums. The further you get the faster the answers will be moving and the more difficult the equations will be. Do you have what it takes to be in the top 10 on the leaderboard? Features 1. Quick Calculations — You will need to have your wits about you when choosing the correct answer with 4 possible answers that get trickier as you progress. 2. Different Levels — As you progress you will navigate through different areas which all come with harder sums and faster reactions needed. 3. Variation of Sums — The calculations in Brain Drain include addition, subtraction, and multiplication so if you think you are a human calculator you should be at the top of the leaderboard. 4. Leaderboard — Compete on a global leaderboard and see where you stand against everyone else in the world. Do you have the brain to be in the top 10? 5 Fast Reactions — Getting far in this game is not only about doing quick math, but you will also need fast reactions to make sure that by the time you have solved the sum the ship is in the correct lane 6. The Nuke — As you get more correct answers your energy bar will start to fill up and once filled up you will be able to use the nuke. The nuke then blows up all answers on the screen so you can use this power when you cannot calculate the sum in time.

Screenshots

Quick Calculation Quiz4 screens
Brain Drain3 screens

Verdict

The call

The clearest difference is in-app purchases: Brain Drain at none against Quick Calculation Quiz's 5. Brain Drain also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 87%). Quick Calculation Quiz's advantage is ratings volume (208 vs 2) and update cadence (every 10 months vs every 28 months). On price, ads 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. Quick Calculation Quiz sells 5 in-app purchases, starting at $2.99 per month. Brain Drain asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Brain Drain holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Quick Calculation Quiz has 208 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 87% of Quick Calculation Quiz's written reviews are positive against 100% of Brain Drain's.

UpkeepUpdate frequency

Quick Calculation Quiz ships an update every 10 months, Brain Drain every 28 months. The most recent releases landed on September 29, 2026 and September 8, 2026 respectively.

Scorecard7 real differences · 3 level
Quick Calculation Quiz versus Brain Drain: the parameters behind the verdict, then further details
ParameterQuick Calculation QuizBrain Drain
PriceFreeFree
Rating4.6 (208 ratings)5.0 (2 ratings) — better
Positive reviews86.8% of reviews100.0% of reviews — better
Number of ratings208 — better2
Update frequencyEvery 10 months — betterEvery 28 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.210.0 — better
Further details — not scored
Size6 MB92 MB
Age rating4+4+
DeveloperBrachmann Online Marketing GmbH & Co. KGBack Alley Technology

Customer experience

Quick Calculation Quiz

All ratings208 ratings
Positive90.4%
Neutral5.8%
Negative3.8%
Written reviews91 reviews
Positive86.8%
Neutral7.7%
Negative5.5%

Brain Drain

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Quick Calculation Quiz

Reported bugs

3 issues
  • Submit button click detection is unreliable
  • Scoring system not calculating all correct answers properly
  • Screen touch responsiveness issues on smaller devices

Requested features

10 requests
  • Ability to select specific calculation types (addition, subtraction, multiplication, division)
  • Multiple difficulty levels or stages
  • Timed vs untimed game modes
  • Direct multiplayer/duel mode between two players
  • Voice input option for answers
Show 5 more
  • Larger submit button
  • Ranking system showing user's position on leaderboard
  • More varied content and game modes
  • Adjustable time limits
  • Separate sections for different operation types

Brain Drain

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Quick Calculation Quiz

Subscriptions1
  • Premium$2.991 Month
One-time4
  • Voluntary Payment 1$0.99
  • Voluntary Payment 2$2.99
  • Voluntary Payment 3$9.99
Show 1 more
  • Remove Ads$12.99
None

Brain Drain

No in-app purchases

Questions

Is Quick Calculation Quiz free?
Quick Calculation Quiz is free to download, with in-app purchases available.
Is Brain Drain free?
Brain Drain is free to download, with no in-app purchases.
Which has better reviews, Quick Calculation Quiz or Brain Drain?
Brain Drain is rated higher. Quick Calculation Quiz averages 4.6 out of 5 from 208 ratings, while Brain Drain averages 5.0 from 2 ratings.
Do Quick Calculation Quiz or Brain Drain have ads?
Both Quick Calculation Quiz and Brain Drain show ads.
Which is updated more often, Quick Calculation Quiz or Brain Drain?
Quick Calculation Quiz ships an update every 10 months, and Brain Drain every 28 months. Most recently, Quick Calculation Quiz was updated on September 29, 2026 and Brain Drain on September 8, 2026.

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