Comparison

Memorio vs Vocab Builder

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

Head to head
About

Memorio

Learn new vocabulary by reviewing words on your iPhone's lock screen throughout the day. The app uses a spaced repetition system to help you remember difficult words. It supports multiple languages and offers interactive quizzes.

Highlights
  • Interactive lock-screen review
  • Spaced repetition learning
  • Multiple language support
  • Apple Watch integration
  • Progress tracking
  • Vocabulary by topic
Features
Read full description

Review Spanish on the screen you check throughout the day. Start a lesson in Memorio, lock your iPhone, and practice remembering words between everyday tasks. APPLE WATCH Open Memorio on Apple Watch to browse your modules and recent lessons, read full card details and mark items as known. Conjugations now use readable tables. Details and backend pronunciation recordings saved on your Watch remain available offline. New content and pronunciation downloads, lesson controls and quiz answers sync through your paired iPhone. Offline known marks wait for confirmation. INTERACTIVE LOCK-SCREEN REVIEW Reveal a translation, answer a quiz, mark a word you know, and move to the next card. Lessons start in the app; you can then interact with the lesson on your lock screen. Dynamic Island is available on supported iPhones. REVISIT WHAT NEEDS PRACTICE Memorio uses a forgetting-curve model to prioritize words for review. Your answers help update how well you know each word, so difficult words receive more practice. WORDS FOR EVERYDAY LIFE Explore vocabulary by topic, browse the words in each module, and follow your learning progress. Study Spanish, English, German, French, Italian, Armenian or Russian. Available content varies by language. START FREE Try 3 full Live Activity lessons, then get 1 free lesson every 7 days. Vocabulary practice and games inside the app stay free. Memorio Premium includes unlimited Live Activity lessons, pronunciation audio, word examples and grammar context, plus the Home Screen widget. SUBSCRIPTIONS Premium is optional. Available plans and prices are shown before purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel your subscription in your Apple Account settings. If you accept a free trial, it becomes a paid subscription unless you cancel before the trial ends. Terms of Use: https://memorio.app/terms-of-use Privacy Policy: https://memorio.app/privacy-policy

About

Vocab Builder

Features
Read full description

Learn a new English word every time you glance at your phone. Vocab puts words and example sentences right on your Lock Screen and Dynamic Island with a Live Activity — free to start, nothing to open. WHY VOCAB • Learn passively. Every glance at your phone is a chance to remember a new word in context. • Live Activity that sticks. Pin a word and example sentence to the Lock Screen until it's locked in. • Dynamic Island companion on iPhone 14 Pro and later — the target word stays one swipe away. • Choose your pace. A new word every 30 or 60 minutes on the free plan, or as often as every 2 minutes with Premium. LEARN 6 LANGUAGES English, Turkish, French, German, Spanish, and Japanese. Pick your native tongue and the language you're learning, and Vocab handles the rest. 4 LEVELS • Beginner — everyday words that get you started fast • Intermediate — vocabulary that powers real conversations • Advanced — nuanced words for fluency • Proficient — the words that separate good from great BUILT FOR REAL ATTENTION SPANS You don't need an hour a day. You don't need to remember to study. Vocab works in the background while you scroll, message, or wait for the bus. The words just show up. TRACK YOUR LEARNED WORDS Every word the Live Activity shows is saved to your Learned Words list, sorted by language. Open the app, see your progress, and pick up where you left off. PRIVACY-FIRST Words stay on your device. No accounts, no tracking, no shared lists. Your learning is yours. PREMIUM Free plan: a new word every 30 or 60 minutes at Beginner level. Premium: Intermediate, Advanced and Proficient levels and rotation from every 2 minutes. Start with a 3-day free trial, then $3.99/week or $29.99/year. Subscriptions renew automatically until cancelled. Cancel anytime in App Store settings. — Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ — Privacy Policy: https://www.privacypolicies.com/live/3df3708c-7fb6-4955-a940-b7fd2440aaca

Screenshots

Memorio4 screens
Vocab Builder4 screens

Verdict

The call

The clearest difference is update cadence: Memorio at every 4 days against Vocab Builder's every 3 months. Memorio also leads on device support (4 vs 1). On price, ads, in-app purchases and iOS requirement 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. Memorio sells 2 in-app purchases, starting at $0.99 per month and Vocab Builder sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Memorio ships an update every 4 days, Vocab Builder every 3 months. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level
Memorio versus Vocab Builder: the parameters behind the verdict, then further details
ParameterMemorioVocab Builder
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone
Requires iOS17.616.2 — better
Further details — not scored
Size131 MB21 MB
Age rating4+4+
DeveloperPetros TepoyanKamil Demirtas

In-app purchases

2 purchases

Memorio

Subscriptions2
  • Memorio Premium7 Days trial$0.991 Month
  • Memorio Premium7 Days trial$4.991 Year
2 purchases

Vocab Builder

Subscriptions2
  • Vocab Pro Weekly3 Days trial$3.997 Days
  • Vocab Premium Yearly3 Days trial$29.991 Year

Questions

Is Memorio free?
Memorio is free to download, with in-app purchases available.
Is Vocab Builder free?
Vocab Builder is free to download, with in-app purchases available.
Do Memorio or Vocab Builder have ads?
Neither Memorio nor Vocab Builder shows ads.
Which is updated more often, Memorio or Vocab Builder?
Memorio ships an update every 4 days, and Vocab Builder every 3 months. Most recently, Memorio was updated on November 11, 2026 and Vocab Builder on November 8, 2026.

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