Comparison

Cat Probability Roulette vs Alphabet Learn

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

Head to head
About

Cat Probability Roulette

Features
Read full description

### Neko Neko Probability Roulette A simple, thrilling color-guessing game that's a cut above ordinary roulette! If your chosen color lands perfectly, points equal to the number on the board will skyrocket! Miss and your points halve... but land the same color consecutively for bonus points pouring in! Battle it out in 10 intense matches! Simple rules make it perfect for learning about probability and statistics. Put your luck and brainpower to the test! **About Ads** Ads appear briefly only after the 1st match and every 5th match thereafter. For just 100 yen, you can completely remove ads for uninterrupted play! Compete with friends for the best score and get hyped, or just keep smashing your own personal best. Enjoy testing your luck and training your brain in Neko Neko World! BGM Casino written by Capybara Kids Roulette By the way. Phalene Voice β€œVOICEVOX: Zundamon”

About

Alphabet Learn

Features
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Glyph teaches you to read and write four alphabets from the very first letter: Greek, Cyrillic, Hiragana and Katakana. Every letter arrives with its stroke order, its sound, and a real word that uses it. Open any letter and watch it drawn one stroke at a time, in the correct order and direction. Tap to replay as often as you like, then copy the shape on paper while the animation loops. WHAT IS INSIDE - Greek: the full alphabet, capital and small forms - Cyrillic: the letters used for Russian, Ukrainian and related languages - Hiragana and Katakana: both Japanese kana sets, side by side - 149 letters in all, each with its romanization, a sound hint, an example word and the English meaning of that word HEAR EVERY LETTER Glyph speaks the example word for each letter using Apple's built-in voices, matched to the right language: Greek for Greek, Russian for Cyrillic, Japanese for the kana. It works with no internet connection. PRACTICE THAT MAKES YOU LOOK Two quiz modes. See the letter and choose its romanization, or see the romanization and choose the letter. The wrong answers are pulled from the same alphabet, so lookalike shapes stay hard and you have to really know them. A streak counter keeps the session moving. DRILL WHAT YOU KEEP MISSING Glyph records every answer and keeps a running list of the letters you get wrong most often. One tap starts a review session made only of those letters, gathered from every alphabet you have studied. SEE YOUR PROGRESS The stats tab shows overall mastery, accuracy per alphabet, correct answers out of total attempts, and a "needs work" row of your weakest letters. Browse the full chart any time, search it by letter or sound, and sort it alphabetically or by how well you know each character. STAYS ON YOUR DEVICE No account, no sign-up, no ads. Your practice history lives on your iPhone, and you can erase it from Settings whenever you want. Alphabet Learn: Greek & Kana requires a Pro unlock to study. Pro opens every alphabet: Greek, Cyrillic, Hiragana and Katakana - 149 letters, each with its romanization, sound hint, example word and meaning - the stroke-order animations and the spoken example words, both quiz modes, the personalized drills built from the letters you miss most, and the stats tab with overall mastery, per-alphabet accuracy and the searchable full chart. Plans: a weekly subscription, a yearly subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renewal in your Account Settings after purchase. Privacy policy: https://pnkl26.web.app/privacy-policy Terms of use: https://pnkl26.web.app/terms-of-service

Screenshots

Cat Probability Roulette3 screens
Alphabet Learn4 screens

Verdict

The call

The clearest difference is ads: Alphabet Learn at none against Cat Probability Roulette's shown. Cat Probability Roulette's advantage is update cadence (every 2 months vs every 5 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Cat Probability Roulette sells 1 one-off in-app purchase and Alphabet Learn sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cat Probability Roulette ships an update every 2 months, Alphabet Learn every 5 months. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

Scorecard4 real differences Β· 2 level
Cat Probability Roulette versus Alphabet Learn: the parameters behind the verdict, then further details
ParameterCat Probability RouletteAlphabet Learn
PriceFreeFree
Update frequencyEvery 2 months β€” betterEvery 5 months
AdsYesNo β€” better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.0 β€” better17.0
Further details β€” not scored
Size138 MB4 MB
Age rating4+4+
DeveloperYusuke OkadaLinh Phan Nhat Khanh

In-app purchases

1 purchases

Cat Probability Roulette

One-time1
  • [Remove Ads]$0.49
3 purchases

Alphabet Learn

Subscriptions2
  • Hiragana & Katakana Writing$2.997 Days
  • Cyrillic Pronunciation Quiz$14.991 Year
One-time1
  • Ukrainian & Japanese Script$29.99

Questions

Is Cat Probability Roulette free?
Cat Probability Roulette is free to download, with in-app purchases available.
Is Alphabet Learn free?
Alphabet Learn is free to download, with in-app purchases available.
Do Cat Probability Roulette or Alphabet Learn have ads?
Cat Probability Roulette shows ads; Alphabet Learn does not.
Which is updated more often, Cat Probability Roulette or Alphabet Learn?
Cat Probability Roulette ships an update every 2 months, and Alphabet Learn every 5 months. Most recently, Cat Probability Roulette was updated on November 5, 2026 and Alphabet Learn on November 7, 2026.

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