Comparison

Big Math Flash Cards vs PerimetreEasy

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

Head to head
About

Big Math Flash Cards

This app provides a digital flash card experience for practicing basic arithmetic operations. Users can flip cards, select answers, and track their progress with score percentages and elapsed time. Additional features for reviewing mistakes, custom sets, and different input modes are available through in-app purchases.

Highlights
  • Addition, Subtraction, Multiplication, Division
  • Configurable number of questions and answers
  • Score percentage and elapsed time tracking
  • Selectable color themes and sound options
  • Review incorrect answers (in-app purchase)
  • Custom card sets (in-app purchase)
Features
Read full description

Highly rated by teachers, parents and kids of all ages! Flip the card just like a real flash card! Simple, clean and easy to use interface. The front side of the card shows the question and the back side of the card shows the possible answers. Just tap to flip the card. Once you answer the question correctly, flick the card off the screen by swiping up. Features * Addition, Subtraction, Multiplication, Division * Score percentage and elapsed time displayed * Configurable number of questions * Configurable number of answers for multiple choice * Supports landscape or portrait card display modes * Selectable flash card color themes * Turn all sounds on or off Other great features available via "In App Purchase" * Review Incorrect - review the questions that were answered incorrectly * Score Cards - view and review past scores and questions * Specific Numbers - customize the first and second number ranges * Mixed Operations - ability to have cards with mixed operators * Flash Card Mode - displays the answer instead of multiple choice (swipe up to mark the card correct, swipe down to mark the card incorrect) * Manual Entry Mode - type your answer instead of selecting from a choice of possible answers * Custom Cards - make your own custom card set questions * Time Per Card - allows you to set a time limit for each card

About

PerimetreEasy

Quickly and easily solve perimeter calculations for various geometric shapes. Enter known dimensions and get instant results, simplifying math exercises and checks.

Highlights
  • Fast perimeter calculations
  • Easy exercise solving
  • Automatic calculation
  • Input known elements
  • Check calculations
Features
Read full description

Within this application, perimeter calculations can be solved quickly, it will be much easier and faster with this complete application. It is now easier to solve exercises and check his calculations. And with a single click! Simply enter the known elements and the application takes care of the rest. Feel free to post notices to advance this application and we can bring new features. For any question / suggestion: TeamTrigoIOS@gmail.com

Screenshots

Big Math Flash Cards4 screens
PerimetreEasy4 screens

Verdict

The call

The clearest difference is in-app purchases: PerimetreEasy at none against Big Math Flash Cards's 1. PerimetreEasy also leads on update cadence (weekly vs every 2 months) and review sentiment (100% vs 77%). 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. Big Math Flash Cards sells 1 one-off in-app purchase. PerimetreEasy asks for nothing beyond the download.

UpkeepUpdate frequency

Big Math Flash Cards ships an update every 2 months, PerimetreEasy weekly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Big Math Flash Cards versus PerimetreEasy: the parameters behind the verdict, then further details
ParameterBig Math Flash CardsPerimetreEasy
PriceFreeFree
Rating4.2 (41K ratings) — better—
Positive reviews76.6% of reviews100.0% of reviews — better
Number of ratings41K — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.610.3 — better
Further details — not scored
Size3 MB27 MB
Age rating4+4+
DeveloperMasato TakagiMaxime Haeyaert

Customer experience

Big Math Flash Cards

All ratings40,859 ratings
Positive79.8%
Neutral5.5%
Negative14.8%
Written reviews1,068 reviews
Positive76.6%
Neutral6.9%
Negative16.5%

PerimetreEasy

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

Bugs and requests

Big Math Flash Cards

Reported bugs

2 issues
  • Incorrect answers marked as wrong
  • Glitches when swiping answers

Requested features

5 requests
  • More difficulty levels
  • Ability to choose specific math operations
  • Addition of word problems
  • Inclusion of fractions and exponents
  • Gamification and rewards system

PerimetreEasy

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Big Math Flash Cards

One-time1
  • All Bundle$4.99
None

PerimetreEasy

No in-app purchases

Questions

Is Big Math Flash Cards free?
Big Math Flash Cards is free to download, with in-app purchases available.
Is PerimetreEasy free?
PerimetreEasy is free to download, with no in-app purchases.
Do Big Math Flash Cards or PerimetreEasy have ads?
Neither Big Math Flash Cards nor PerimetreEasy shows ads.
Which is updated more often, Big Math Flash Cards or PerimetreEasy?
Big Math Flash Cards ships an update every 2 months, and PerimetreEasy weekly. Most recently, Big Math Flash Cards was updated on November 11, 2026 and PerimetreEasy on November 3, 2026.

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