Comparison

Random Number Generator. RNG vs MemDeck

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

Head to head
About

Random Number Generator. RNG

This app provides a versatile tool for generating random numbers, letters, and making decisions. It offers various randomization features like dice rolling, coin flipping, and custom list selection. Users can also utilize widgets and Apple Watch integration for quick access to random outcomes.

Highlights
  • Number generator (0-999999999)
  • Letter generator
  • Dice roller
  • Custom list item generator
  • Coin flipper
  • Rock-Paper-Scissors
  • Widgets and Apple Watch support
Features
Read full description

Random is a simple, powerful random generator for everyday decisions, games, raffles, classrooms, testing, and quick picks. Need a number? Rolling dice? Choosing from a list? Flipping a coin? Let Random decide. Generators: • Number generator • Letter generator • Dice roller • List picker • Yes or No • Coin flipper • Card generator • Rock Paper Scissors • Random map point • Color generator • Date & time generator Presets Save your favorite generator settings as presets and reuse them anytime. Presets work across the app, widgets, Shortcuts, and Apple Watch, so your most-used randomizers are always close. Widgets Add Random widgets to your Home Screen and generate results without opening the app. Use standard widgets for quick generators or preset widgets for your saved setups. Shortcuts Run supported generators and saved presets from Apple Shortcuts for faster workflows and automation. Apple Watch Use Random on Apple Watch to generate numbers, dice, coins, cards, lists, and more from your wrist. History View recent results in one shared Recent screen. Filter by generator and manage history when you want a clean start. Fast Controls Generate new results by tapping the randomize button, pressing the Spacebar on an external keyboard, or shaking your device. Touch and hold results to copy, clear, or manage them with context menus. Random Premium Upgrade to Random Premium to unlock more powerful features: • Save and run custom presets • Import lists from files or paste from the clipboard • Sync your data across devices • Customize app tints and icons • Support indie development Subscription Information Random Premium may be available as weekly, monthly, annual, or lifetime access depending on available offers. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your App Store account settings. Prices and available plans are shown in the app before purchase. Terms & Conditions: https://yahenskyi.dev/terms-conditions/ Privacy Policy: https://yahenskyi.dev/privacy-policy/

About

MemDeck

Practice card memorization with this app that shuffles decks and tests your recall. Track your progress and compete globally. Adjust deck size for all skill levels.

Highlights
  • Card shuffling and display
  • Memorization timing
  • Automatic answer checking
  • Results recording
  • Adjustable deck size
  • Global leaderboards
Features
Read full description

This app helps you practice card memorization. MemDeck shuffles a deck of cards and shows you the order. You see the cards to memorize the order. The app records how long do you take to memorize the cards and automatically checks your answer. The results are recorded and you can check them later. MemDeck helps not only pro memory athletes but also beginners! You can reduce the number of cards and practice with a smaller size of the deck. Sign in to Apple's GameCenter to see the world ranking of 13, 26, 39, and 52 cards.

Screenshots

Random Number Generator. RNG4 screens
MemDeck4 screens

Verdict

The call

Random Number Generator. RNG and MemDeck both sit at 4.6 stars, but that hides the real split: 100% of MemDeck's written reviews are positive against 61% of Random Number Generator. RNG's. MemDeck also leads on iOS requirement (15.6 vs 17.0). Random Number Generator. RNG's advantage is ads (none vs shown) and ratings volume (3.3K vs 4). On price, rating, in-app purchases and monetization model 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. Random Number Generator. RNG sells 9 in-app purchases, starting at $2.99 per month and MemDeck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Random Number Generator. RNG against 4.8 for MemDeck. That said, the two scores are not equally well evidenced: Random Number Generator. RNG has 3.3K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 61% of Random Number Generator. RNG's written reviews are positive against 100% of MemDeck's.

UpkeepUpdate frequency

Random Number Generator. RNG ships an update fortnightly, MemDeck every 6 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Random Number Generator. RNG versus MemDeck: the parameters behind the verdict, then further details
ParameterRandom Number Generator. RNGMemDeck
PriceFreeFree
Rating4.6 (3.3K ratings)4.8 (4 ratings) — better
Positive reviews60.6% of reviews100.0% of reviews — better
Number of ratings3.3K — better4
Update frequencyFortnightly — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS17.015.6 — better
Further details — not scored
Size59 MB4 MB
Age rating4+4+
DeveloperVolodymyr YahenskyiWataru Mera

Customer experience

Random Number Generator. RNG

All ratings3,317 ratings
Positive90.4%
Neutral3.9%
Negative5.7%
Written reviews231 reviews
Positive60.6%
Neutral10.4%
Negative29.0%

MemDeck

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

Random Number Generator. RNG

Subscriptions7
  • Monthly plan3 Days trial$2.991 Month
  • Monthly plan$2.991 Month
  • Monthly plan$4.991 Month
Show 4 more
  • Weekly plan$4.997 Days
  • Annual plan7 Days trial$19.991 Year
  • Yearly plan7 Days trial$29.991 Year
  • Annual plan$29.991 Year
One-time2
  • Lifetime. One-time purchase$35.99
  • Lifetime plan$59.99
1 purchases

MemDeck

One-time1
  • Premium$4.99

Questions

Is Random Number Generator. RNG free?
Random Number Generator. RNG is free to download, with in-app purchases available.
Is MemDeck free?
MemDeck is free to download, with in-app purchases available.
Which has better reviews, Random Number Generator. RNG or MemDeck?
MemDeck is rated higher. Random Number Generator. RNG averages 4.6 out of 5 from 3.3K ratings, while MemDeck averages 4.8 from 4 ratings.
Do Random Number Generator. RNG or MemDeck have ads?
MemDeck shows ads; Random Number Generator. RNG does not.
Which is updated more often, Random Number Generator. RNG or MemDeck?
Random Number Generator. RNG ships an update fortnightly, and MemDeck every 6 weeks. Most recently, Random Number Generator. RNG was updated on November 1, 2026 and MemDeck on October 24, 2026.

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