Comparison

Calculator + vs Flash Cards +

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

Head to head
About

Calculator +

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

Highlights
  • Free basic and scientific calculator
  • Intuitive interface with equation and result display
  • Fraction and percent support
  • Advanced editing capabilities
  • Polynomial and linear equation solver
  • Graphing calculator
  • Unit conversion and geometric calculators
Features
Read full description

Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Flash Cards +

Create and manage digital flash card decks for efficient studying. Record questions and answers by speaking to your phone, then share decks with friends to collaborate on learning. Organize study materials conveniently on your device.

Highlights
  • Create and manage flash card decks
  • Record questions and answers via voice input
  • Share flash cards with friends
  • Organize study materials
  • Digital alternative to physical notecards
Features
Read full description

Tests worth of information stored conveniently in your phone. Quickly create and manage decks of flash cards to ensure you receive the grades you deserve. Easily send your flash cards to friends to spread the studying around. Flash Cards Plus allows you to enter card questions and answers just by speaking to your phone! It's not magic we promise, but it will sure help you study. Get rid of all your messy notecards and study with Flash Cards Plus!

Screenshots

Calculator +1 screens
Flash Cards +4 screens

Verdict

The call

The clearest difference is in-app purchases: Flash Cards + at none against Calculator +'s 12. Flash Cards + also leads on ads (none vs shown) and iOS requirement (10.0 vs 16.4). Calculator +'s advantage is rating (4.6 vs 4.2) and ratings volume (10K vs 87). On price, update cadence 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. Calculator + sells 12 in-app purchases, starting at $4.99 per month. Flash Cards + asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator + holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Calculator + has 10K ratings behind it against 87, so its average is the more settled of the two. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 73% of Flash Cards +'s.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
Calculator + versus Flash Cards +: the parameters behind the verdict, then further details
ParameterCalculator +Flash Cards +
PriceFreeFree
Rating4.6 (10K ratings) — better4.2 (87 ratings)
Positive reviews84.9% of reviews — better72.7% of reviews
Number of ratings10K — better87
Update frequencyEvery 5 daysEvery 5 days
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.410.0 — better
Further details — not scored
Size49 MB31 MB
Age rating4+4+
DeveloperxNeat.comBrady Carey

Customer experience

Calculator +

All ratings10,181 ratings
Positive91.8%
Neutral2.8%
Negative5.4%
Written reviews941 reviews
Positive84.9%
Neutral4.0%
Negative11.1%

Flash Cards +

All ratings87 ratings
Positive80.5%
Neutral4.6%
Negative14.9%
Written reviews66 reviews
Positive72.7%
Neutral10.6%
Negative16.7%

User reviews

Calculator +

From 10K App Store ratings

What we love

  • 👍 Great features and easy to use
  • 👍 Efficient and quick
  • 👍 Versatile, functional calculator
  • 👍 Fantastic, easy to use app
  • 👍 Awesome calculator app

Room to improve

  • 🐛 New updated layout is awful
  • 🐛 App is now terrible
  • 🔒 Paying customer screwed over by update
  • 🔒 Now timed trial, no free w/ads version
  • 🔒 Not honest

Flash Cards +

From 87 App Store ratings

What we love

  • 👍 Easy to use and straightforward
  • 💰 Free to use with minimal ads
  • 🚀 Efficient for studying and memorization
  • 🗣️ Good voice recognition for card creation
  • ✅ No account required, simple setup

Room to improve

  • 😠 Frequent and disruptive ads
  • 🚫 No option to remove ads permanently
  • ↔️ Limited deck sharing/export options
  • ❓ Some users confused about learning mode
  • 🔄 Cards only go in one direction

Bugs and requests

Calculator +

Reported bugs

5 issues
  • Fraction calculator has TWO subtraction buttons and NO division button
  • Decimals seem to be changed to fraction with no apparent way of changing it back
  • Functionality is dropped by forcing you to the main menu every time you open it
  • Currency converter broken
  • Login screen freezes

Requested features

5 requests
  • Add mod function
  • Add commas
  • Add 1/x function
  • Support for Retina Display
  • Add number 4 with two lines

Flash Cards +

Reported bugs

4 issues
  • App crashing due to ads
  • Ads interrupting playback
  • Question not accepted on first entry
  • Ads appearing too frequently, sometimes consecutively

Requested features

18 requests
  • Dark mode option
  • Ability to move mail list items around
  • Direct access to learning mode (questions only)
  • Option to purchase an ad-free version
  • Ability to move cards between decks
Show 13 more
  • Ability to rename decks
  • Ability to combine decks
  • Export decks to other platforms/devices
  • Airdrop decks to other devices
  • Add diagrams or photos to cards
  • Landscape mode for iPad
  • Sync across all iOS devices
  • Email a deck to a friend
  • Increase character limit per card
  • Return button for text entry
  • Option to buy a premium version without ads
  • Progress indicator for cards (e.g., Nailed it, Show more)
  • Make flash cards change automatically

In-app purchases

12 purchases

Calculator +

Subscriptions2
  • Scientific Calculator3 Days trial$4.991 Month
  • Calculator7 Days trial$39.991 Year
One-time10
  • Linear Calculator$2.99
  • Factoring Calculator$2.99
  • Handwriting Calculator$2.99
Show 7 more
  • Currency Converter$2.99
  • Themes Pack$2.99
  • Graphing Calculator$3.99
  • Fraction Calculator$3.99
  • Scientific Calculator$4.99
  • Calculator Plus$4.99
  • Calculator$16.99
None

Flash Cards +

No in-app purchases

Questions

Is Calculator + free?
Calculator + is free to download, with in-app purchases available.
Is Flash Cards + free?
Flash Cards + is free to download, with no in-app purchases.
Which has better reviews, Calculator + or Flash Cards +?
Calculator + is rated higher. Calculator + averages 4.6 out of 5 from 10K ratings, while Flash Cards + averages 4.2 from 87 ratings.
Do Calculator + or Flash Cards + have ads?
Calculator + shows ads; Flash Cards + does not.
Which is updated more often, Calculator + or Flash Cards +?
Calculator + ships an update every 5 days, and Flash Cards + every 5 days. Most recently, Calculator + was updated on October 21, 2026 and Flash Cards + on October 14, 2026.

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