Comparison

GRE Vocabulary Builder vs MM Learning Lab

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

Head to head
About

GRE Vocabulary Builder

Prepare for the GRE with over 1,300 essential words and a comprehensive study guide. Interactive flashcards, audio lessons, and progress tracking help you master vocabulary and understand the test structure. Study offline anytime, anywhere.

Highlights
  • 1300+ GRE words
  • Interactive flashcards
  • GRE study guide
  • Audio-enabled lessons
  • Progress tracking
  • Offline mode
Features
Read full description

Master over 1,300 essential GRE® words with interactive flashcards and a complete GRE® study guide! Improve your vocabulary and learn every word you need to know for the GRE® step by step with different difficulty levels. STUDY GUIDE Learn more about the GRE® test, the scoring system, the Analytical Writing, Verbal Reasoning, Quantitative Reasoning and question categories. Get tips on how to get the highest score! VOCABULARY FLASHCARDS More than 1,300 essential words for the GRE® carefully picked by expert tutors. Use the Smart Round for personalized flashcards generated by our learning algorithm. JUST LISTEN! Use the audio-enabled lessons and easily follow each paragraph, word by word with better concentration. TRACK TEST & STUDY PROGRESS Keep track of your progress through the chapters and lessons. Easily pick up where you left off with the Continue Studying shortcut. FULL OFFLINE MODE Study on the go! Use the app wherever you go without an internet connection, and still access all the lessons, flashcards and words. OTHER FEATURES: - Customizable Study Reminders - Dark Mode Support (with automatic switch) - Listen To Glossary Words Pronunciations Feedback on the app, the content, or the questions? We always would love to hear back from you! You can reach us at hello@reev.ca. Love the app? Please take a moment to leave a review and let us know what you think. *GRE® is a registered trademark of the Educational Testing Service (ETS) in the United States and other countries. This app is not endorsed by the ETS.

About

MM Learning Lab

This app uses AI to engage children in learning through interactive voice chat, playful games, and personalized progress tracking. Kids can ask questions and receive spoken answers, play educational games, and enjoy a safe, ad-free environment designed for young learners.

Highlights
  • AI voice chat and conversation
  • Speech-to-text for questions
  • Chess with AI commentary
  • Classic learning games
  • Multiple child profiles
  • Offline progress tracking
Features
Read full description

MM Learning Lab: Where Curiosity Talks Back! Welcome to M&M Learning Lab – the magical app where learning comes alive with real AI voices, playful games, and a friendly chat buddy for your child! What's New & Awesome: Chat with AI: Kids can talk or type to a smart, friendly AI who answers questions, tells stories, and shares fun facts – all in expressive, lifelike voices! Voice Input & Audio Replies: No typing needed! Just hold the mic, ask anything, and hear the answer out loud. Personalized Profiles: Each child gets their own space, with age-appropriate content and progress tracking. Playful Learning Games: From chess with real-time AI commentary to classic alphabet and phonics games, there's something for every curious mind. Kid-Approved Design: Bright colors, big buttons, and a cheerful mascot make learning inviting and easy for all ages. Parent-Friendly: Safe, ad-free, and transparent. Manage subscriptions, see progress, and enjoy peace of mind. Key Features: AI Voice Chat & Call: Real conversations with a friendly AI – ask, learn, and laugh together! Speech-to-Text: Kids can speak their questions and get instant, spoken answers. Chess with AI Coach: Play chess and get fun, encouraging commentary from your chosen AI voice. Classic Learning Games: Letter tracing, phonics bubble pop, and more – all with voice guidance. Multiple Profiles: Perfect for families – each child's progress is tracked separately. Offline Progress Tracking: All learning is saved locally for privacy and security. Why Kids & Parents Love M&M Learning Lab: First Month Free: Try all premium features with a risk-free trial! Grows with Your Child: Content and answers adapt to your child's age and interests. Always Improving: New voices, games, and learning topics added regularly. Download M&M Learning Lab today and let your child's curiosity come alive – with a voice! SUBSCRIPTION INFORMATION: - Monthly subscription: $1.99/month - First month free trial available - Family Sharing supported - share subscription with up to all family members - Payment charged to Apple ID at confirmation of purchase - Subscription automatically renews unless cancelled at least 24 hours before current period ends - Manage subscriptions in your Apple ID Account Settings Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://haoyu.io/mm-privacy.html

Screenshots

GRE Vocabulary Builder4 screens
MM Learning Lab4 screens

Verdict

The call

The clearest difference is in-app purchases: GRE Vocabulary Builder at none against MM Learning Lab's 1. GRE Vocabulary Builder also leads on ratings volume (113 vs 1) and iOS requirement (13.0 vs 16.6). MM Learning Lab's advantage is update cadence (weekly vs every 4 months) and rating (5.0 vs 4.6). 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. MM Learning Lab sells 1 in-app purchase, starting at $1.99 per month. GRE Vocabulary Builder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MM Learning Lab holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: GRE Vocabulary Builder has 113 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

GRE Vocabulary Builder ships an update every 4 months, MM Learning Lab weekly. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
GRE Vocabulary Builder versus MM Learning Lab: the parameters behind the verdict, then further details
ParameterGRE Vocabulary BuilderMM Learning Lab
PriceFreeFree
Rating4.6 (113 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings113 — better1
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.6
Further details — not scored
Size71 MB43 MB
Age rating4+4+
DeveloperReev Tech Inc.ISW Technologies LLC

Customer experience

GRE Vocabulary Builder

All ratings113 ratings
Positive91.2%
Neutral2.7%
Negative6.2%
Written reviews8 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

MM Learning Lab

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GRE Vocabulary Builder

No in-app purchases

1 purchases

MM Learning Lab

Subscriptions1
  • M&M Learning Premium1 Month trial$1.991 Month

Questions

Is GRE Vocabulary Builder free?
GRE Vocabulary Builder is free to download, with no in-app purchases.
Is MM Learning Lab free?
MM Learning Lab is free to download, with in-app purchases available.
Which has better reviews, GRE Vocabulary Builder or MM Learning Lab?
MM Learning Lab is rated higher. GRE Vocabulary Builder averages 4.6 out of 5 from 113 ratings, while MM Learning Lab averages 5.0 from 1 ratings.
Do GRE Vocabulary Builder or MM Learning Lab have ads?
Neither GRE Vocabulary Builder nor MM Learning Lab shows ads.
Which is updated more often, GRE Vocabulary Builder or MM Learning Lab?
GRE Vocabulary Builder ships an update every 4 months, and MM Learning Lab weekly. Most recently, GRE Vocabulary Builder was updated on October 24, 2026 and MM Learning Lab on October 24, 2026.

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