Comparison

Emma vs Vocabulary Builder

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

Head to head
About

Emma

This app offers a realistic AI tutor for language learning. It provides personalized onboarding, interactive dialogues for real-world scenarios, and rewards to keep users motivated. Explore diverse topics and levels to achieve language proficiency.

Highlights
  • AI language tutor
  • Personalized onboarding
  • Interactive dialogues
  • Real-world scenarios
  • Badge rewards
  • Diverse content topics
Features
Read full description

Are you ready to transform the way you learn languages? Introducing Emma, your highly realistic language companion that makes learning captivating, interactive, and genuinely enjoyable! Step into a realm where language challenges become gateways, and conversations spring to life with our enchanting AI partner, Emma. Experience personalized onboarding that aligns with your unique interests and preferences, paving the way for a learning journey tailored just for you. Delve into a variety of real-world scenarios, from education and travel to dating and more, each brought to life through engaging dialogues and interactive experiences. Follow diverse paths and levels, earn badges, and unlock exciting rewards as you advance towards language proficiency. Key Features: - Tailored Learning: Emma offers a customized onboarding process that reflects your unique interests and needs, ensuring a learning journey just for you. - Interactive Dialogues: Converse meaningfully with Emma, your AI sidekick, and practice real-world scenarios in a secure and supportive setting. - Diverse Content: Explore a broad spectrum of topics, including education, travel, and dating, with interactive lessons designed to enhance your language abilities. - Badge Rewards: Earn badges as you navigate different paths and levels, unlocking exciting rewards and gifts to stay motivated and engaged. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://emma-learn.com/privacy.html

About

Vocabulary Builder

Expand your English vocabulary and improve fluency with daily practice. This app offers smart learning tools, organized categories, and practice modes to help you master new words. Stay motivated with progress tracking and personalized reminders.

Highlights
  • Daily word learning
  • Example sentences and audio
  • Customizable categories
  • Multiple quiz types
  • Progress tracking
  • Personalized reminders
  • Motivational messages
Features
Read full description

Vocabulary Builder: Avocado is an app created for learners who want to expand their English vocabulary, improve fluency, and stay motivated every day. With a simple interface and smart learning tools, it turns daily practice into a consistent habit. Just like an avocado is both nutritious and versatile, this app provides everything you need to nourish your language learning. Avocados are known for giving energy and balance to your diet, and Vocabulary Builder: Avocado gives the same kind of balance to your study routine — it is simple on the outside, but rich and rewarding on the inside. The main screen shows each word with transcription and an example sentence. Scrolling between words makes the study process dynamic, while quick action buttons let you play audio, share the word, or save it into your favorites. From here you can easily access Categories, Add words, Practice, Theme, and Settings, or unlock Premium to explore the full experience. Categories allow you to organize your vocabulary. You can create personal collections or use built-in ones like Mix all, My Favourites, or Need to practise. Words can be edited or moved between categories, and user levels show how your knowledge is growing step by step. Adding new words is simple: enter the word, transcription, part of speech, and an example. You can add multiple words at once, and the app highlights the studied word in sentences automatically. Practice mode helps you test and strengthen memory. Choose from five quiz types: correct translation, missing word, irregular verbs, antonyms, and synonyms. Each test has eight tasks with a rewarding completion screen. Free users can take two tests per day, while Premium offers unlimited practice. In Settings, you can track your personal achievements and see how far you have progressed. Reminders can be customized by category, time, and frequency, so you never miss a study session. The app also delivers motivational messages directly in your word feed, helping you stay encouraged and focused on your learning journey. The free version includes limited categories, one custom category, two daily tests, one reminder, and basic themes. Premium unlocks unlimited tests, unlimited reminders, all themes, widgets, and complete access to every feature. What makes Vocabulary Builder: Avocado stand out is the way it adapts to your personal needs. The interface follows your device language. Irregular verbs are presented as a dedicated content type with all three forms. Mistakes from practice are automatically sent to the “Need to practise” category, giving you a clear path to improvement. And with motivational messages plus achievement tracking, you always know you are moving forward. Like an avocado in your diet, this app is both simple and essential. It fuels your progress, makes your study routine healthier, and leaves you with lasting benefits. Vocabulary Builder: Avocado is not just another dictionary — it is a daily source of energy for your English learning journey. Upgrade to Vocabulary Builder: Avocado Premium: - Unlimited daily practice tests - Full access to all vocabulary categories - Create and edit unlimited custom word collections - Multiple reminders with flexible schedules - All app themes and customization options - Exclusive widgets for quick learning access - Automatic tracking of mistakes in “Need to practice” Subscription payments are charged to your App Store account upon confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Any unused portion of a free trial will be forfeited when a subscription is purchased. Manage your subscription via Account Settings after purchase. Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use: https://learnwords.app/terms-of-use.html Privacy Policy: https://learnwords.app/privacy-policy.html

Screenshots

Emma4 screens
Vocabulary Builder4 screens

Verdict

The call

The clearest difference is ads: Vocabulary Builder at none against Emma's shown. Vocabulary Builder also leads on review sentiment (100% vs 80%) and iOS requirement (15.4 vs 17.0). Emma's advantage is update cadence (weekly vs every 2 months). On price, in-app purchases, monetization model 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. Emma sells 10 in-app purchases, starting at $8.99 per 7 days and Vocabulary Builder sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Emma ships an update weekly, Vocabulary Builder every 2 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Emma versus Vocabulary Builder: the parameters behind the verdict, then further details
ParameterEmmaVocabulary Builder
PriceFreeFree
Rating4.6 (4K ratings) — better—
Positive reviews79.8% of reviews100.0% of reviews — better
Number of ratings4K — better—
Update frequencyWeekly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.4 — better
Further details — not scored
Size231 MB116 MB
Age rating4+4+
DeveloperEdailabsNavis Apps LLC

Customer experience

Emma

All ratings3,948 ratings
Positive89.3%
Neutral4.4%
Negative6.3%
Written reviews387 reviews
Positive79.8%
Neutral9.8%
Negative10.3%

Vocabulary Builder

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Emma

Reported bugs

3 issues
  • Freezing or crashing during lessons
  • Inconsistent speech recognition
  • Inability to advance to next lesson levels

Requested features

5 requests
  • More language options
  • Ability to switch between languages
  • More detailed grammar and vocabulary explanations
  • Progress tracking and performance analytics
  • Offline mode for lessons

Vocabulary Builder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Emma

Subscriptions10
  • Pro Plan Weekly$8.997 Days
  • Pro Plan Weekly7 Days trial$14.997 Days
  • Pro Plan Monthly3 Days trial$17.991 Month
Show 7 more
  • Pro Plan Monthly7 Days trial$17.991 Month
  • Pro Plan Monthly7 Days trial$19.991 Month
  • Pro Plan Quarterly3 Days trial$34.993 Months
  • Premium 3 Months7 Days trial$34.993 Months
  • Pro Plan Annualy7 Days trial$49.991 Year
  • Pro Plan Annually3 Days trial$99.991 Year
  • Premium 1 Year7 Days trial$99.991 Year
2 purchases

Vocabulary Builder

Subscriptions2
  • Avocado Premium$14.991 Month
  • Avocado Premium$59.991 Year

Questions

Is Emma free?
Emma is free to download, with in-app purchases available.
Is Vocabulary Builder free?
Vocabulary Builder is free to download, with in-app purchases available.
Do Emma or Vocabulary Builder have ads?
Emma shows ads; Vocabulary Builder does not.
Which is updated more often, Emma or Vocabulary Builder?
Emma ships an update weekly, and Vocabulary Builder every 2 months. Most recently, Emma was updated on November 4, 2026 and Vocabulary Builder on October 30, 2026.

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