Comparison

World Number Translator vs Babbel

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

Head to head
About

World Number Translator

This app helps you learn and practice spelling numbers in over 50 languages. It offers unique input methods for quick counting and a game to test your recognition skills. Ideal for language learners and anyone needing to write numbers in foreign scripts.

Highlights
  • Translate numbers to spelled-out words
  • Practice counting in foreign languages
  • Odometer-style input for quick counting
  • Calculator-style input
  • Fast-paced number recognition game
  • Supports over 50 languages
  • Includes Latinized spellings for pronunciation
Features
Read full description

Have you ever noticed it can be hard to learn to say and spell numbers in different languages because you never see them spelled out in writing? You might see "Uno Dos Tres, ..." in one chapter in your textbook, and then never again. So I created this app to to solve the problem (and just because I wanted to learn to count in other languages ;-). It's great for practice because it has a special "Odometer" style input that makes it easy to quickly count up and down by ones, tens, hundreds, etc. Of course it has a calculator-style input, too. And for practice recognizing numbers it has a fast-paced game: see the spelled number and tap in the digits as fast as you can. Here are some of the things Polynumial is useful for: • Quick translation of numbers into spelled-out words. • Learning to count in another language • Writing out a number on a check • Practicing number translation. It translates over 50 languages (see the list below). For most languages when you enter a number Polynumial shows the spelled-out version, like "cuarenta y dos" for 42 in Spanish. For many languages that aren't based on the latin alphabet it also supports the 'latinized' spellings, to help you remember how to pronounce them. So in Chinese the number 1,234 is spelled "一千二百三十四“, and the pronounceable version (in pinyin) is "yī qiān èr bǎi sān shí sì". Languages Included: Afrikaans Akan (Ghana) Albanian Arabic Armenian Azerbaijani Belarusian Bosnian Bulgarian Burmese (Myanmar) Catalan (Spain) Chakma (India, Bangladesh, Myanmar) Cherokee (United States) Chinese (Mandarin) Croatian Czech Danish Dutch (Netherlands) English Esperanto (World) Estonian Ewe (Ghana) Faroese Filipino Finnish French Fulah (West Africa) Georgian German German (Switzerland) Greek Hebrew Hindi Hungarian Icelandic Indonesian Irish Italian Kalaallisut (Greenland) Korean Kymer (Cambodia) Lao (Laos) Latvian Lithuanian Luxembourgish Macedonian Malay Maltese Norwegian: Bokmål & Nynorsk Northern Luri (Iraq, Iran) Northern Sami (Finland, Norway, Sweden) Persian Polish Portuguese Quechua (South America) Romanian Russian Serbian (Cyrillic & Latin) Slovak Slovenian Spanish Swahili (Central Africa) Swedish Tamil (Sri Lanka) Thai Turkish Ukrainian Vietnamese Welsh

About

Babbel

Master a new language with expert-designed, bite-sized lessons that fit your schedule. Build conversational confidence quickly through interactive practice and a smart review system. Learn Spanish, French, German, and more for travel, work, or fun.

Highlights
  • Bite-sized lessons
  • Expert-built courses
  • Interactive conversation practice
  • Smart review system
  • Grammar in context
  • Offline mode
  • Learn 14 languages
Features
Read full description

Speak a new language with real-life conversations. Babbel is the award-winning language learning app with courses tailored to your native language, built by 200+ language experts and trusted by millions worldwide. Because lessons are built for speakers of your language, an English speaker learning Spanish gets different lessons than a French speaker does. You learn to speak, listen, and understand grammar in context, then practice real conversations with Babbel Speak, an AI conversation partner that gives you personalized feedback. Learn a new language faster with bite-sized lessons designed to fit your everyday life. With Babbel’s proven method, you could start having real conversations in as little as 3 weeks. Your language learning adventure starts with a lesson. WHY BABBEL WORKS • Tailored to your native language: Courses are created by language experts and tailored to your native language, so you learn naturally and efficiently. • Real-life conversations: Learn the language people actually speak, for travel, work, and everyday life. • Speak with confidence: Practice out loud with speech recognition and Babbel Speak, an AI conversation partner to improve your pronunciation. • Research-proven results: Efficacy backed by researchers at Yale University: 100% improved their oral proficiency in 3 months.* TRUSTED BY MILLIONS • 25 million subscriptions sold • 1.5 million 5-star ratings (based on App store ratings) • After 10 hours with Babbel, 96% of learners saw better test scores on grammar and vocabulary** BUILT FOR REAL LIFE • Short, effective lessons: Learn in as little as 10 minutes a day • Lessons for every motivation: Learn for travel, work, or fun • Listen, speak, write: Options for every learning style • Stress-free conversation practice: Build confidence with Guided Conversations, then practice freely with Babbel Speak (Beta) • Smart review system: Boosts learning and retention • Grammar in context: Clear explanations exactly when you need them • Offline mode: Download lessons and learn anywhere, anytime • 5,000+ courses: Over 60,000 lessons across all languages LEARN 14 LANGUAGES Spanish (Latin American or Spain), French, Italian, German, Portuguese, English (American or British), Russian, Polish, Turkish, Norwegian, Danish, Swedish, Dutch, and Indonesian. TRY BABBEL TODAY Download Babbel now and take a free lesson. SUBSCRIPTION DETAILS A subscription is required to access full courses for one language. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Payment will be charged to your Apple account. Available plans: • 1 month • 3 months • 6 months • 12 months Privacy policy: https://about.babbel.com/en/privacy/ Terms of use: https://about.babbel.com/en/terms/ LEARN MORE Read Babbel Magazine for tips and insights: https://www.babbel.com/en/magazine Follow us: Instagram: https://www.instagram.com/babbelusa Facebook: https://www.facebook.com/Babbel.usa CONTACT US Questions or feedback? Email: support-mobile@babbel.com *Based on a study conducted with Babbel users learning Spanish. Available at http://bit.ly/BabbelYale. **Based on a study conducted with Babbel users learning Spanish. Available: http://bit.ly/BabbelMSU.

Screenshots

World Number Translator3 screens
Babbel4 screens

Verdict

The call

World Number Translator and Babbel both sit at 4.8 stars, but that hides the real split: 87% of World Number Translator's written reviews are positive against 44% of Babbel's. World Number Translator also leads on monetization model (free with in-app purchases vs subscription) and iOS requirement (15.0 vs 17.0). Babbel's advantage is update cadence (every 4 days vs every 2 months) and ratings volume (754K vs 158). On price, rating, ads and in-app purchases 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. World Number Translator sells 1 one-off in-app purchase and Babbel sells 12 in-app purchases, starting at $17.99 per month. 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 — 4.8 for World Number Translator against 4.7 for Babbel. That said, the two scores are not equally well evidenced: Babbel has 754K ratings behind it against 158, so its average is the more settled of the two. Written reviews are what separate them: 87% of World Number Translator's written reviews are positive against 44% of Babbel's.

UpkeepUpdate frequency

World Number Translator ships an update every 2 months, Babbel every 4 days. The most recent releases landed on September 5, 2026 and September 25, 2026 respectively.

Scorecard6 real differences · 5 level
World Number Translator versus Babbel: the parameters behind the verdict, then further details
ParameterWorld Number TranslatorBabbel
PriceFreeFree
Rating4.8 (158 ratings) — better4.7 (754K ratings)
Positive reviews86.7% of reviews — better43.7% of reviews
Number of ratings158754K — better
Update frequencyEvery 2 monthsEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
Best chart rank—#7 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size11 MB263 MB
Age rating4+12+
DeveloperDavid RichmondBabbel GmbH

Customer experience

World Number Translator

All ratings158 ratings
Positive95.6%
Neutral2.5%
Negative1.9%
Written reviews15 reviews
Positive86.7%
Neutral6.7%
Negative6.7%

Babbel

All ratings753,872 ratings
Positive93.8%
Neutral3.8%
Negative2.5%
Written reviews2,638 reviews
Positive43.7%
Neutral13.9%
Negative42.3%

Bugs and requests

World Number Translator

Not enough reviews yet to summarise bugs or requests.

Babbel

Reported bugs

4 issues
  • Lessons sometimes freeze or crash the app
  • Subscription cancellation process is overly complicated
  • Inconsistent behavior when switching between languages
  • Keyboard issues and inability to use system keyboard

Requested features

5 requests
  • Add more language options, especially Asian languages like Japanese, Korean, and Chinese
  • Improve review and practice tools to better reinforce learned material
  • Provide more customization options for lesson pacing and content
  • Implement a more forgiving scoring system and allow users to revisit past lessons
  • Add a dark mode and optimize the app for better readability

In-app purchases

1 purchases

World Number Translator

One-time1
  • Upgrade$2.99
12 purchases

Babbel

Subscriptions12
  • Mexican Spanish – 1-month plan$17.991 Month
  • Spanish 1 month$17.991 Month
  • French 1 month$17.991 Month
Show 9 more
  • Italian 1 month$17.991 Month
  • Mexican Spanish - 1-month plan$19.991 Month
  • Mexican Spanish – 3-month plan$45.993 Months
  • Learn French – 3-month plan$45.993 Months
  • Learn Spanish – 3-month plan$45.993 Months
  • All Languages – 3-month plan$53.993 Months
  • Mexican Spanish – 1-year plan$89.991 Year
  • All Languages – 12-month plan$107.991 Year
  • All Languages – 12-month plan7 Days trial$107.991 Year

Questions

Is World Number Translator free?
World Number Translator is free to download, with in-app purchases available.
Is Babbel free?
Babbel is free to download, with in-app purchases available.
Which has better reviews, World Number Translator or Babbel?
World Number Translator is rated higher. World Number Translator averages 4.8 out of 5 from 158 ratings, while Babbel averages 4.7 from 754K ratings.
Do World Number Translator or Babbel have ads?
Both World Number Translator and Babbel show ads.
Which is updated more often, World Number Translator or Babbel?
World Number Translator ships an update every 2 months, and Babbel every 4 days. Most recently, World Number Translator was updated on September 5, 2026 and Babbel on September 25, 2026.

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