Comparison

Flash Mental Math vs Take Shelter

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

Head to head
About

Flash Mental Math

Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.

Highlights
  • Mental arithmetic practice
  • Easy, normal, and difficult modes
  • Customizable modes
  • Brain training
  • Calculation skill improvement
Features
Read full description

Flash mental arithmetic practice app In addition to the easy, normal, and difficult modes, there are also custom modes. It can also be a brain training to improve mental arithmetic

About

Take Shelter

This app provides comprehensive guidance on nuclear survival, covering everything from understanding nuclear explosions to preparing essential supplies and identifying safe shelters. It aims to equip users with the knowledge and skills needed to increase their chances of survival in the event of a nuclear attack.

Highlights
  • Nuclear explosion stages
  • Shelter suitability
  • Survival supply requirements
  • Global nuclear weapon data
  • Nuclear attack procedures
  • Survival kit checklists
Features
Read full description

Find out everything you need to know to protect yourself and your loved ones from the devastating effects of a nuclear attack. Imagine the following scenario. You’re going about your everyday life and out of nowhere the howling sound of an air siren hits your ears and a notification of an incoming nuclear strike appears on your phone! What do you do, where do you go, what will happen? Prepare for the worst and download Take Shelter. - Learn about the stages of a nuclear explosion - Find out what makes a suitable shelter - Determine the supplies required for survival - Discover global nuclear weapon inventories - Know what to do in the event of a nuclear attack - Assess your chances of surviving - Prepare with survival kit checklists Download Take Shelter now and arm yourself with the knowledge and skills needed to survive a nuclear attack. Don't be caught off guard - prepare for the worst and emerge as a survivor!

Screenshots

Flash Mental Math3 screens
Take Shelter4 screens

Verdict

The call

The clearest difference is price: Flash Mental Math at Free against Take Shelter's $1.99. Flash Mental Math also leads on ratings volume (20 vs 2). Take Shelter's advantage is ads (none vs shown) and rating (5.0 vs 4.6). On update cadence, 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

Flash Mental Math is free to download; Take Shelter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Take Shelter holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flash Mental Math has 20 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Flash Mental Math ships an update every 3 months, Take Shelter every 4 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Flash Mental Math versus Take Shelter: the parameters behind the verdict, then further details
ParameterFlash Mental MathTake Shelter
PriceFree — better$1.99
Rating4.6 (20 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings20 — better2
Update frequencyEvery 3 months — betterEvery 4 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size14 MB32 MB
Age rating4+4+
DeveloperRyouhei AzumaN Craig

Customer experience

Flash Mental Math

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Take Shelter

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Flash Mental Math

No in-app purchases

None

Take Shelter

No in-app purchases

Questions

Is Flash Mental Math free?
Flash Mental Math is free to download, with no in-app purchases.
Is Take Shelter free?
Take Shelter costs $1.99, with no in-app purchases.
Which has better reviews, Flash Mental Math or Take Shelter?
Take Shelter is rated higher. Flash Mental Math averages 4.6 out of 5 from 20 ratings, while Take Shelter averages 5.0 from 2 ratings.
Do Flash Mental Math or Take Shelter have ads?
Flash Mental Math shows ads; Take Shelter does not.
Which is updated more often, Flash Mental Math or Take Shelter?
Flash Mental Math ships an update every 3 months, and Take Shelter every 4 months. Most recently, Flash Mental Math was updated on November 7, 2026 and Take Shelter on November 5, 2026.

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