Comparison

Erla vs RStudy

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

Head to head
About

Erla

Features
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LEARN CZECH THE NATURAL WAY Finally, a language app that teaches you to understand real Czech—not just memorize words. Erla uses context-based learning through listening, reading, and AI conversations to help you think in Czech, not translate in your head. REAL RESULTS IN WEEKS - Understand native Czech 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 Czech 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 Czech 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 Czech—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 Czech 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 Czech in weeks, not years. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RStudy

Features
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RStudy для тих, хто хоче вчити чеську самостійно або з викладачем. 1. Вчіть чеську самостійно Повний курс A1 і A2 на основі перевіреного підручника "Český krok za krokem". Теорія, інтерактивний тест і вправи як у книзі. 24 розділи, 78 тем. Чеська ближча до Вас ніж здається: обидві мови слов'янські, і RStudy будує на тому, що Ви вже знаєте. Розділ 1 рівня A1 (5 тем) і Розділ 1 рівня A2 (4 теми) доступні для всіх безкоштовно назавжди. Без кредитної картки і без тиску. 2. Словник за 61 темою У лікаря, в органах влади, родина, робота, покупки і ще 56 категорій. Рівні від A1 до B2. Слухайте вимову кожного слова, вчіть через флешкарти, пари і вибір. Повністю безкоштовно. 3. Уроки від викладача Сфотографуйте нотатки або введіть слова. RStudy витягне все: слова, граматичні правила, фрази. Тренуйтесь через картки, вибір, пари і речення. Функції: • Курс чеської A1 і A2: 24 розділи, 78 тем. Рівень B1 увійде автоматично. • Розділ 1 рівнів A1 і A2 безкоштовно назавжди • Словник: 61 тема, понад 1 600 слів та виразів • Вимова: чеський акцент + транскрипція українськими буквами • iOS widget: слово дня прямо на екрані iPhone, без відкриття додатку • Фото нотаток від викладача за 30 секунд у флешкарти • 4 типи вправ: картки, вибір, пари, речення Ліцензійна угода (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Erla4 screens
RStudy4 screens

Verdict

The call

The clearest difference is update cadence: RStudy at every 3 days against Erla's every 10 days. On price, ads, in-app purchases 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 and RStudy sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Erla ships an update every 10 days, RStudy every 3 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 5 level
Erla versus RStudy: the parameters behind the verdict, then further details
ParameterErlaRStudy
PriceFreeFree
Update frequencyEvery 10 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size100 MB39 MB
Age rating4+4+
DeveloperAleksandr Shelestov PR JustOneDevJeno Resetar

In-app purchases

2 purchases

Erla

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

RStudy

Subscriptions2
  • RStudy PRO$9.991 Month
  • RStudy PRO (Річна)$39.991 Year

Questions

Is Erla free?
Erla is free to download, with in-app purchases available.
Is RStudy free?
RStudy is free to download, with in-app purchases available.
Do Erla or RStudy have ads?
Neither Erla nor RStudy shows ads.
Which is updated more often, Erla or RStudy?
Erla ships an update every 10 days, and RStudy every 3 days. Most recently, Erla was updated on October 24, 2026 and RStudy on October 24, 2026.

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