Comparison

Erla vs Cube

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

Head to head
About

Erla

Learn German through natural conversation and context. This app uses AI-powered dialogues, listening exercises, and immersive stories to help you think in German and speak confidently. Achieve real results in just minutes a day.

Highlights
  • AI conversation practice
  • Context-based vocabulary building
  • Listening comprehension exercises
  • Immersive short stories
  • Pronunciation feedback
  • Offline learning content
Features
Read full description

Learn German by using it—not by memorizing disconnected words. Erla brings listening, stories, short videos, AI conversations, speaking practice, vocabulary, grammar and word games together in one focused learning experience. Everything is designed to help you understand German in context and feel more confident using it yourself. LEARN IN WAYS THAT FEEL NATURAL Train different skills throughout the week with short activities that fit your level and schedule. • LISTEN Train your ear with clear German audio and practical, everyday situations. Adjust the playback speed and reveal the text when you need help. • READ Explore short, engaging stories at your level. Tap any sentence to see a translation and understand how it works. • WATCH Learn from quick, entertaining videos. Listen first, reveal the subtitles when you are ready, and tap sentences for extra help. • CHAT Write to your AI teacher about topics that interest you. Get helpful corrections, hints and feedback without the pressure of speaking to another person. • TALK Practice real spoken conversations using your voice. Build confidence, improve your responses and receive feedback after each lesson. GRAMMAR THAT CLICKS German grammar—cases, genders, word order—becomes easier when you can see it, understand it and use it. Explore clear lessons organized by level and topic. Each rule takes you from the key idea through practical examples and common mistakes. Then build sentences yourself, one word at a time, until der, die and das start to feel natural. Track your accuracy and progress as you practice. Beginner grammar rules are available free, with more included in Erla PRO. PLAY WITH YOUR GERMAN A whole tab of word games built from the language you are learning. Find four hidden groups, fill in the missing word, uncover a blacked-out story, name the emoji or beat the clock. Every game plays in Chill, Classic or Extreme mode, so there is always a version that fits your day. MAKE EVERY NEW WORD COUNT Save useful German words to your Vocabulary Wallet whenever you encounter them in lessons, games or grammar practice. Erla keeps each word together with its meaning and explanation. When you are ready, practice your saved vocabulary through interactive exercises designed to help it stick. A PLAN BUILT AROUND YOUR LIFE Tell Erla what you want to improve, which activities you enjoy and how much time you have. Your personalized weekly plan turns those choices into a manageable daily routine. • Choose your level: Beginner, Intermediate or Advanced • Set different goals for different days • Add rest days whenever you need them • See what is left in today's plan • Build a streak and track your understanding • Set smart reminders for the times that suit you SUPPORT WHEN YOU NEED IT Translations, explanations and word meanings are shown in your chosen language. Erla supports a wide range of interface languages, so you can concentrate on learning German instead of deciphering instructions. MADE FOR REAL PROGRESS Erla is for beginners taking their first steps, intermediate learners building confidence, and advanced learners who want to keep their German active. Start with a few minutes today. Listen, read, watch, chat, speak, play—and turn the German you meet into German you can actually use. Download Erla and start learning German your way. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Cube

Read full description

Cube-Vision is a speedcubing timer that records and reconstructs your solves using a vision algorithm, providing stats and splits while you practice with your main. Cube-Vision is completely free. No sign in, no ads, and all videos stay on your device unless you choose to share them. HOW IT WORKS: 1. Follow the scramble given and start inspection. Tap and hold the screen to start the timer, or simply place your hands face down as if starting a competition timer. Cube-Vision watches your hands starts the timer when you take your hands off the table. 2. Solve the cube! The front facing camera records your solve. 3. Review: Once the moves have been extracted from the video Cube-Vision compiles a solve breakdown with per stage move counts and TPS. ALGORITHM TRAINER 1. Select and algorithm set and press start training. 2. You will be shown a case on the screen. Solve that case on your own cube. Each of your moves will be played onto the displayed cube until it is solved. 3. View your stats. Compare your most recent performance to your average performance for that case with recognition time, execution time, and TPS. 4. Repeat: Perform a U2 flick to move on to the next case and you'll be able to quickly practice all of your algorithms.

Screenshots

Erla4 screens
Cube4 screens

Verdict

The call

The clearest difference is in-app purchases: Cube at none against Erla's 2. Cube also leads on update cadence (every 4 days vs every 9 days). Erla's advantage is device support (3 vs 1). On price, ads 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. Erla sells 2 in-app purchases, starting at $12.99 per month. Cube asks for nothing beyond the download.

UpkeepUpdate frequency

Erla ships an update every 9 days, Cube every 4 days. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Erla versus Cube: the parameters behind the verdict, then further details
ParameterErlaCube
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.1
Further details — not scored
Size101 MB113 MB
Age rating4+4+
DeveloperAleksandr Shelestov PR JustOneDevDamian Piech

In-app purchases

2 purchases

Erla

Subscriptions2
  • Erla Pro Monthly7 Days trial$12.991 Month
  • Erla Pro Annual7 Days trial$59.991 Year
None

Cube

No in-app purchases

Questions

Is Erla free?
Erla is free to download, with in-app purchases available.
Is Cube free?
Cube is free to download, with no in-app purchases.
Do Erla or Cube have ads?
Neither Erla nor Cube shows ads.
Which is updated more often, Erla or Cube?
Erla ships an update every 9 days, and Cube every 4 days. Most recently, Erla was updated on October 30, 2026 and Cube on October 29, 2026.

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