Comparison

UiBi Mobile vs Erla

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

Head to head
About

UiBi Mobile

Features
Read full description

This is the Official App for the Social Learning Environment Platform named UiBi that transforms the educational content of essential Moodle Portal, in activities accessible in time and space chosen by the students, in order to provide greater freedom of learning beyond the "walls" of the School and enlarge the spread of knowledge beyond the "book form". The Mobile App UiBi is a unique tool essential to enable all actors faculty and students to use the content of the educational portal developed with Moodle and allows among other things: - stimulate the authorship of teachers and students - overcome barriers caused by social disadvantage and / or psycho-physical - have a use of content in different forms and times - stimulate the collaborative spirit of the students UiBi is an innovative project, dedicated to teaching 2.0 funded by the Fondazione Cassa di Risparmio di Lucca born to support school communities (families, teachers and students) of the Province of Lucca, action then extended to other areas throughout the country, in increasing use of new technologies and strongly applied to teaching. The main purposes of the project are: - creating a social environment for learning, with the aim to support both formal learning moments, as the lesson that takes place in school, and those non-formal situations spanning the majority of learning time, outside the school walls: at home, in the gym, during walks with friends - create a Community of Practice of teachers, also cross the individual disciplines, with the aim to facilitate the exchange of experiences, materials, opinions and expand the baggage of theoretical and practical knowledge through training both independently and with the contribution of external parties.

About

Erla

Learn Russian naturally through listening, reading, and AI-powered conversations. This app helps you think in Russian by immersing you in authentic content and providing personalized feedback. Achieve real results in just minutes a day.

Highlights
  • Context-based learning
  • AI conversation practice
  • Native speaker audio
  • Immersive reading stories
  • Pronunciation feedback
  • Offline learning
Features
Read full description

LEARN RUSSIAN THE NATURAL WAY Finally, a language app that teaches you to understand real Russian—not just memorize words. Erla uses context-based learning through listening, reading, and AI conversations to help you think in Russian, not translate in your head. REAL RESULTS IN WEEKS - Understand native Russian speakers within 2-3 weeks - Build lasting vocabulary through context, not flashcards - Gain confidence to have real conversations - Just 5-10 minutes a day is all you need LISTENING MODE Train your ear with authentic native speaker recordings. Hear real Russian in everyday situations and develop natural comprehension skills. Recognize speech patterns, pronunciation, and rhythm exactly as native speakers use them. READING MODE Immerse yourself in engaging short stories—from fairy tales to fascinating facts. Tap any sentence for instant translation. Explore grammar explanations on demand. Progress at your own pace with sentence-by-sentence support. AI CHAT MODE Practice real Russian conversations with your personal AI language teacher. Choose from 12 topic categories. Get personalized feedback, grammar corrections, and vocabulary building—all in context. Use the hint system when you're stuck. Track your understanding score as you improve. TALK MODE – VOICE CONVERSATIONS Ready to speak? Have real voice conversations with AI teachers who sound like native speakers. Tap the microphone and speak naturally. Get instant feedback on pronunciation and fluency. Multiple teachers with different personalities and voices available 24/7. This trains your brain to think in Russian—not constantly translate word-by-word. PERSONALIZED FOR YOU: - Choose your level: Beginner, Intermediate, or Advanced - Set daily goals from 20 to 300 points - Track streaks and watch your progress grow - Download content for offline learning - Adjust audio speed to match your needs PERFECT FOR: - Complete beginners starting their Russian journey - Intermediate learners improving comprehension - Advanced students maintaining fluency - Busy professionals with limited study time - Anyone who wants to learn naturally Download Erla now and start understanding Russian in weeks, not years. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

UiBi Mobile4 screens
Erla4 screens

Verdict

The call

The clearest difference is in-app purchases: UiBi Mobile at none against Erla's 2. UiBi Mobile also leads on iOS requirement (11.0 vs 15.0). Erla's advantage is update cadence (every 9 days vs every 40 months). On price, ads 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. Erla sells 2 in-app purchases, starting at $12.99 per month. UiBi Mobile asks for nothing beyond the download.

UpkeepUpdate frequency

UiBi Mobile ships an update every 40 months, Erla every 9 days. The most recent releases landed on November 6, 2026 and November 13, 2026 respectively.

Scorecard3 real differences · 7 level
UiBi Mobile versus Erla: the parameters behind the verdict, then further details
ParameterUiBi MobileErla
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 40 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size21 MB71 MB
Age rating4+4+
DeveloperFondazione Cassa di Risparmio di LuccaAleksandr Shelestov PR JustOneDev

In-app purchases

None

UiBi Mobile

No in-app purchases

2 purchases

Erla

Subscriptions2
  • Erla Pro Monthly7 Days trial$12.991 Month
  • Erla Pro Annual7 Days trial$59.991 Year

Questions

Is UiBi Mobile free?
UiBi Mobile is free to download, with no in-app purchases.
Is Erla free?
Erla is free to download, with in-app purchases available.
Do UiBi Mobile or Erla have ads?
Neither UiBi Mobile nor Erla shows ads.
Which is updated more often, UiBi Mobile or Erla?
UiBi Mobile ships an update every 40 months, and Erla every 9 days. Most recently, UiBi Mobile was updated on November 6, 2026 and Erla on November 13, 2026.

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