SuperMemo vs Sotto

SuperMemo8.7Visit SSotto5.7Visit

Higher score SuperMemo #7 in Language Learning Apps 8.7/10 Free plan · 30-day trial Free planFree trial✓ 5 of 5 features Visit SuperMemo

vs

S Sotto #31 in Language Learning Apps 5.7/10 Free plan Free plan✓ 5 of 5 features Visit Sotto

• SuperMemo fits best

  Serious learners who value proven depth

• Sotto fits best

  Learners wanting maximum breadth and control

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Side by side

Feature	SuperMemo 8.7/10 Visit ↗	SSotto 5.7/10 Visit ↗
At a glance
Editor score	8.7	5.7
Ranking	#7 in Language Learning Apps	#31 in Language Learning Apps
Best for	Serious learners who value proven depth	Learners wanting maximum breadth and control
Pricing model	Free plan + paid	Free
Starting price	359 PLN/yr	Free plan
Free plan	✓	✓
Free trial	30 days	—
Deployment	Cloud, Desktop, Mobile	Cloud, Desktop, Mobile, Self-hosted
Platforms	Web, Windows, macOS, Linux, iOS, Android	Web, Windows, macOS, Linux, iOS
Features SuperMemo 5/5 · Sotto 5/5
Offline lessons	✓	✓
Speech practice	✓	✓
Placement test	✓	✓
Personalized review	✓	✓
Mobile apps	✓	✓
Specs
Languages offered	25	Not checked yet
Our review
Pros	Adaptive spaced repetition with configurable learning plans Speech practice, AI conversation, and placement tests Offline mobile lessons across web, desktop, and mobile apps	Covers grammar, reading, listening, speaking, and writing Supports adaptive review, pronunciation scoring, and writing feedback Runs across web, desktop, iOS, API, and self-hosted setups
Cons	Premium access starts at 35.99 PLN per month The 30-day Premium trial converts to paid unless cancelled Its broad course depth may feel involved for casual learners	Self-hosting can require more setup than a hosted learning app Cloud AI, speech, search, or storage providers may add direct costs Its broad feature set may be more than casual learners need
Our verdict	SuperMemo is a language-learning platform for individual learners who want structured courses, adaptive review, and measurable progress. Its nearly 300 courses cover 25 languages, with material spanning vocabulary, grammar, pronunciation,… Read the review →	Sotto is an open-source language-learning application for learners who want private, context-based practice across all four core skills. Its CEFR-based courses cover grammar, reading, listening, speaking, and writing, while placement… Read the review →

Strengths and trade-offs

• SuperMemo — where it wins

  • Adaptive spaced repetition with configurable learning plans
  • Speech practice, AI conversation, and placement tests
  • Offline mobile lessons across web, desktop, and mobile apps

  Where it doesn't

  • Premium access starts at 35.99 PLN per month
  • The 30-day Premium trial converts to paid unless cancelled
  • Its broad course depth may feel involved for casual learners

• Sotto — where it wins

  • Covers grammar, reading, listening, speaking, and writing
  • Supports adaptive review, pronunciation scoring, and writing feedback
  • Runs across web, desktop, iOS, API, and self-hosted setups

  Where it doesn't

  • Self-hosting can require more setup than a hosted learning app
  • Cloud AI, speech, search, or storage providers may add direct costs
  • Its broad feature set may be more than casual learners need

• SuperMemo8.7/10 · Free plan · 30-day trial

  A deep, mature learning system for learners who want structured progress.

  Visit SuperMemoFull verdict →
• SSotto5.7/10 · Free plan

  A broad, private language-learning workspace with offline and self-hosted options.

  Visit SottoFull verdict →