Comparison

504 vs GO2TRain

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

Head to head
About

504

Master essential vocabulary with this language learning app. It offers clear definitions, example sentences, and native pronunciation for high-utility words. Engage with interactive games like flashcards and quizzes to reinforce learning and track your progress effectively.

Highlights
  • Essential vocabulary selection
  • Clear definitions and example sentences
  • Native pronunciation audio
  • Interactive learning games (flashcards, quizzes)
  • Progress tracking tools
  • Multi-language support
Features
Read full description

Build your vocabulary with 504 Words – a smarter way to learn languages. 504 Words is a language learning app that helps you master the most essential vocabulary through clear definitions, example sentences, and interactive games. Whether you're learning English, German, French, or future supported languages, this app is designed to make your progress efficient and enjoyable. Learn the right words We’ve carefully selected 504 high-utility words for each language, focusing on real-world usage and practical communication. Every word comes with: - A clear definition - An example sentence - Native pronunciation Practice through interactive games Make learning fun and effective with built-in study modes: - Flashcards to test your memory - Multiple choice quizzes to reinforce understanding - Listening games to improve your pronunciation and recognition skills These game modes make it easier to retain new words and stay engaged every day. Track your progress Stay motivated with performance tracking tools. Monitor the words you've mastered and focus on areas where you need improvement. Great for daily practice and long-term learning. Multi-language support Start with English, German, and French. More languages will be added soon. Whether you're a beginner or refreshing your knowledge, the app adapts to your level and pace. Designed for all learners 504 Words offers a clean, intuitive interface suitable for learners of all ages. Use it at home, in class, or while traveling. No ads, no distractions—just focused learning. Download 504 Words today and take the first step toward confident communication in any language. https://nefarius-apps.github.io/504/privacy-policy https://nefarius-apps.github.io/504/terms-of-use

About

GO2TRain

Master new languages with engaging video lessons, AI chat practice, and downloadable handouts. Connect with language partners to improve speaking skills. Available on mobile and desktop.

Highlights
  • Diverse language selection
  • Engaging video lessons
  • Language partner connection
  • AI chat for practice
  • Downloadable handouts
  • Quizzes and exercises
  • Desktop version available
Features
Read full description

Unlock a World of Languages with GO2TRain! Say goodbye to language barriers and start your journey to fluency with GO2TRain – the ultimate language learning app that makes mastering new languages fun, easy, and accessible for everyone. Whether you’re dreaming of speaking English, German, French, Korean, Turkish, Italian, Arabic, Russian, Spanish, or Chinese, GO2TRain offers engaging lessons tailored to all skill levels. Join thousands of learners and start your language adventure today! Why GO2TRain? - Diverse Language Selection: Master popular languages like English, German, French, Korean, Turkish, Italian, Arabic, Russian, Spanish, and Chinese, with new languages added regularly. - Engaging Video Lessons: Interactive video sessions from 45 to 90 minutes, making learning feel like having a personal tutor on hand. - Find a Language Partner: Connect with other learners and practice together! Find a partner to improve your speaking skills in a real-world context. - AI Chat for Instant Practice: Improve your writing and conversation skills by chatting with our AI assistant, available to help anytime! - Downloadable Handouts: Review important point of lessons easily with downloadable study materials. - Quizzes and Exercises: Test your skills after each session and advance your language abilities. - Desktop Version Available: Prefer learning on a bigger screen? GO2TRain is now available on desktop for a more immersive experience. Your Language, Your Adventure! GO2TRain goes beyond language learning – it’s about experiencing new cultures and stories from around the world. Ready to embark on your language journey? Download GO2TRain now and open the door to endless opportunities. -- Subscription details -- Unlock the full potential of GO2TRain with our premium subscription plans: Premium Subscription – Enjoy unlimited access for just $5.99 per month. Premium 6-Month Subscription – Get 6 months of premium access for only $19.99. Payment will be charged to your Apple ID account upon purchase confirmation. The renewal cost will be the same as the original subscription price. You can manage or cancel your subscription anytime in your App Store account settings Terms of Service : https://go2train.co/termsofservice Privacy Policy : https://go2train.co/privacypolicy

Screenshots

5044 screens
GO2TRain4 screens

Verdict

The call

The clearest difference is ads: GO2TRain at none against 504's shown. GO2TRain also leads on iOS requirement (15.0 vs 18.0). 504's advantage is update cadence (fortnightly vs monthly) and ratings volume (4.6K vs 1.3K). On price, rating, review sentiment 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. 504 sells 6 in-app purchases, starting at $4.99 per 7 days and GO2TRain sells 7 in-app purchases, starting at $1.99 per 7 days. 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 504 against 4.9 for GO2TRain. Both are backed by a comparable volume of ratings — 4.6K and 1.3K respectively. Written reviews are what separate them: 73% of 504's written reviews are positive against 74% of GO2TRain's.

UpkeepUpdate frequency

504 ships an update fortnightly, GO2TRain monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
504 versus GO2TRain: the parameters behind the verdict, then further details
Parameter504GO2TRain
PriceFreeFree
Rating4.8 (4.6K ratings)4.9 (1.3K ratings) — better
Positive reviews73.0% of reviews74.2% of reviews — better
Number of ratings4.6K — better1.3K
Update frequencyFortnightly — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size66 MB138 MB
Age rating4+4+
DeveloperNefarius AppsGO2TR EGITIM TURIZM GAYRIMENKUL DANISMANLIK REKLAMCILIK PAZARLAMA VE TICARET ANONIM S

Customer experience

504

All ratings4,599 ratings
Positive94.6%
Neutral2.7%
Negative2.7%
Written reviews63 reviews
Positive73.0%
Neutral4.8%
Negative22.2%

GO2TRain

All ratings1,311 ratings
Positive97.3%
Neutral0.7%
Negative2.0%
Written reviews31 reviews
Positive74.2%
Neutral0.0%
Negative25.8%

User reviews

504

From 4.6K App Store ratings

What we love

  • 🚀 Easy to learn
  • 👍 Useful vocabulary practice
  • 🚀 Convenient for learning on the go

Room to improve

  • 🐛 Bugs and glitches in latest version
  • 🔒 Concerns about data tracking
  • 🔊 Issues with pronunciation and audio

GO2TRain

From 1.3K App Store ratings

What we love

  • 🤩 Awesome learning app
  • 👍 Great and free app to learn new languages
  • 👌 Useful for learning new languages
  • 🔥 Totally free with amazing courses

Room to improve

  • 🐛 App crashes and closes immediately after opening
  • 🐛 App not working properly on latest iOS version
  • 🐛 Different sections of the app not opening
  • 🐛 App keeps crashing and logging out of lessons

Bugs and requests

504

Reported bugs

3 issues
  • Pronunciation not working in latest version
  • Lessons for second half of book blocked behind paywall
  • Compatibility issues with older devices

Requested features

3 requests
  • Add part of speech for each word
  • Include a note box for personal examples
  • Add dark mode option

GO2TRain

Reported bugs

2 issues
  • Videos not opening in iOS
  • App crashing after updates

Requested features

2 requests
  • Add Japanese language courses
  • Provide a desktop version of the app

In-app purchases

6 purchases

504

Subscriptions6
  • Premium$4.997 Days
  • Premium1 Month trial$9.991 Month
  • Premium$9.991 Month
Show 3 more
  • Premium3 Days trial2 variants$9.997 Days
  • Premium$34.991 Year
  • Yearly Pro Membership3 Days trial$59.991 Year
7 purchases

GO2TRain

Subscriptions6
  • GO2TRain$1.997 Days
  • GO2TRain$4.991 Month
  • GO2TRain$5.991 Month
Show 3 more
  • GO2TRain2 variants$19.996 Months
  • GO2TRain$29.991 Year
  • GO2TRain$49.991 Month
One-time1
  • GO2TRain$149.00

Questions

Is 504 free?
504 is free to download, with in-app purchases available.
Is GO2TRain free?
GO2TRain is free to download, with in-app purchases available.
Which has better reviews, 504 or GO2TRain?
GO2TRain is rated higher. 504 averages 4.8 out of 5 from 4.6K ratings, while GO2TRain averages 4.9 from 1.3K ratings.
Do 504 or GO2TRain have ads?
504 shows ads; GO2TRain does not.
Which is updated more often, 504 or GO2TRain?
504 ships an update fortnightly, and GO2TRain monthly. Most recently, 504 was updated on November 2, 2026 and GO2TRain on November 3, 2026.

Other comparisons