Comparison

Most Common Words vs Math Quest Rainbow

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

Head to head
About

Most Common Words

Master 31 languages with 3,000 essential words and over 100,000 example sentences. Features hands-free learning, spaced repetition, quizzes, and offline access. Sync progress across devices and personalize your studies with custom word lists.

Highlights
  • 3,000 essential vocabulary words
  • 100,000+ example sentences
  • Hands-free learning
  • Spaced repetition system
  • Interactive quizzes
  • Offline access
  • Progress sync across devices
Features
Read full description

Master 31 languages effortlessly with 3k essential vocabulary words, over 100k example sentences, hands-free learning, quizzes, spaced repetition, sync, dictionary, and notifications - Perfect for beginners and advanced learners - 3000 words are all you need to express yourself and have everyday conversations in a language easily. This app has all the most common ones that are essential to know for everyday conversations, always available on your phone, anywhere, anytime, even while offline. - 100k+ example sentences with native pronunciation to put vocabulary into real conversation context - Automatic and flexible spaced repetition, so you will always see and practice the words that are the most beneficial to review based on last review time, number of times reviews, and current status of the word - Filter by levels (A1, A2, B1, B2), over 100 topics, categories, and sub-categories (e.g. family, food, entertainment, home, time, work, nature, body, travel, society, feelings, health, education, technology), and parts of speech (adjectives, nouns, verbs, adverbs, pronouns, prepositions, conjunctions) - Study without even opening the app, on your lock screen or smartwatch, with flexibly scheduled notifications - Flashcard autoplay and auto-pronounce loops over your flashcards for times when you are multi-tasking and cannot use your hands for an effortless hands-free learning experience (so you can learn even when working, watching a movie, or doing chores) - Practice with your favorite interactive quiz types to master your vocabulary (there are a total of 9 practice quiz types with 36 total variations regarding hint, answer type, and language) - Easily accessible dictionary that lets you search with keywords, and you can even expand your search to all 100k+ example sentences that contain the given keywords - Backup and sync your word progress, stars, statistics, and practices across all devices in real-time so that you can pick up any of your devices with the latest state already synced - Stick to your goals by setting a daily review goal, and optional daily notifications to remind you to study - You can understand your current study level and progress and monitor the current states of all 3000 most common words with a single glance from the main screen - Add your own words and tags with instant auto-translate for faster adding - Import your own word lists from plaintext files with flexible delimiters (comma, semicolon, tab, or custom separators) to personalize your learning experience with specialized vocabulary from your textbooks, work, or interests - Home screen widget keeps your learning active by cycling through your currently studying words directly on your phone's home screen - review vocabulary without even opening the app - Core features are free forever, while extra features can be unlocked by in-app purchases The following translations translations are supported for English learners, or speakers: Spanish, French, German, Hungarian, Italian, Portuguese, Danish, Dutch, Finnish, Norwegian, Polish, Romanian, Slovak, Slovenian, Swedish, Estonian, Croatian, Czech, Indonesian, Turkish, Chinese, Arabic, Lithuanian, Japanese, Korean, Russian, Ukrainian, Hindi, Afrikaans, Vietnamese Conjugations are available for English, German, Italian, Spanish, French, Dutch, Portuguese, Finnish, Indonesian, Romanian, Danish Reader and Books are available for people studying German, Spanish, Italian, Spanish, and Dutch from English

About

Math Quest Rainbow

This app transforms arithmetic practice into a fun, offline adventure for children. Players solve math problems to earn coins, unlock collectible characters, and progress through engaging challenges.

Highlights
  • 100% Offline play
  • Collect Rainbow Heroes
  • Earn coins by solving problems
  • Fun animations and sound effects
  • Kid-friendly design
  • Adaptive math challenges
Features
Read full description

Turn math practice into an exciting adventure! Math Quest Rainbow makes learning arithmetic fun for kids of all ages with colorful challenges and rewarding gameplay. PLAY ANYWHERE, ANYTIME No internet required! MathGame works completely offline, making it perfect for flights, road trips, waiting rooms, or anywhere without WiFi. Keep kids engaged and learning wherever you go. COLLECT RAINBOW HEROES Solve math problems to earn coins and unlock adorable Rainbow Heroes! Each hero is a unique collectible that motivates kids to keep practicing. Can you collect them all? MATH ADVENTURES Progress through exciting math challenges that adapt to your skill level. From addition and subtraction to multiplication and division - build confidence with every problem solved. KEY FEATURES - 100% Offline - No internet needed - Collect unique Rainbow Heroes - Earn coins by solving problems - Fun animations and sound effects - Kid-friendly design - No ads interrupting gameplay Perfect for parents who want their children to learn while having fun. Download now and start your math adventure!

Screenshots

Most Common Words4 screens
Math Quest Rainbow4 screens

Verdict

The call

The clearest difference is update cadence: Math Quest Rainbow at daily against Most Common Words's every 6 weeks. Most Common Words's advantage is iOS requirement (16.6 vs 18.6). On price, rating, ratings volume and ads 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. Most Common Words sells 5 in-app purchases, starting at $12.99 per month and Math Quest Rainbow 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 — 5.0 for Most Common Words against 5.0 for Math Quest Rainbow. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Most Common Words ships an update every 6 weeks, Math Quest Rainbow daily. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
Most Common Words versus Math Quest Rainbow: the parameters behind the verdict, then further details
ParameterMost Common WordsMath Quest Rainbow
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 6 weeksDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.6 — better18.6
Further details — not scored
Size104 MB38 MB
Age rating4+4+
DeveloperDominik GyecsekJames Rochabrun

Customer experience

Most Common Words

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

Math Quest Rainbow

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

Most Common Words

Subscriptions3
  • Monthly Pro$12.991 Month
  • Yearly Pro7 Days trial$59.991 Year
  • Yearly Pro7 Days trial$79.991 Year
One-time2
  • Lifetime Pro2 variants$79.99
  • Lifetime Pro2 variants$119.99
1 purchases

Math Quest Rainbow

One-time1
  • Unlimited Math Fun$3.99

Questions

Is Most Common Words free?
Most Common Words is free to download, with in-app purchases available.
Is Math Quest Rainbow free?
Math Quest Rainbow is free to download, with in-app purchases available.
Which has better reviews, Most Common Words or Math Quest Rainbow?
Most Common Words and Math Quest Rainbow are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Most Common Words or Math Quest Rainbow have ads?
Neither Most Common Words nor Math Quest Rainbow shows ads.
Which is updated more often, Most Common Words or Math Quest Rainbow?
Most Common Words ships an update every 6 weeks, and Math Quest Rainbow daily. Most recently, Most Common Words was updated on October 2, 2026 and Math Quest Rainbow on October 13, 2026.

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