Tavio vs System Design Refresher
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Tavio
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Train your brain, test your knowledge, and improve yourself every day. Tavio is a free knowledge and brain training app designed for curious minds. Practice yourself through engaging quizzes, strengthen your memory, and stay focused while learning something new every day. Learn Without Limits With 10,000+ high-quality questions across 50+ diverse topics, Tavio helps you practice knowledge in a fun and natural way. Whether you want to test knowledge, challenge your brain, or simply enjoy trivia, Tavio makes learning enjoyable. Play daily, improve yourself, and keep your mind active โ all without subscriptions. Smart Learning, Endless Discovery Tavio brings together education, entertainment, and brain training in one place. Explore a wide variety of topics, improve memory and focus, and challenge your IQ through carefully designed quizzes. Learning in Tavio feels like Netflix-style discovery โ but for knowledge. Key Features 10,000+ questions 50+ diverse and expanding topics Unlimited quiz access Improve memory, focus, and thinking skills Practice knowledge anytime, anywhere Designed for learning, fun, and brain tests Free to play Who Is Tavio For? Tavio is perfect for students, trivia lovers, pop culture fans, and anyone who wants to practice yourself, test knowledge, and improve IQ in a fun way. Practice. Learn. Improve. Make learning part of your daily routine. Train your brain, test your knowledge, and enjoy unlimited learning challenges. Download Tavio: Practice Knowledge and start learning today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
System Design Refresher
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System Design Refresher is a free study companion for software engineers preparing for system design interviews. WHAT'S INSIDE โข 30+ system design articles covering distributed systems, databases, caching, and more โข Engineering blogs from top tech companies (Google, Meta, Stripe, Airbnb, and more) aggregated in one place โข AI-powered flashcards with spaced repetition โข Ask AI to summarize or explain any article in plain language โข Favorites, reading progress tracking, and custom RSS feeds FEATURES โข Works offline โ articles download for reading without internet โข Dark mode, font customization, and text size controls โข Face ID / Touch ID lock for privacy โข Sign in with Google or Apple, or use as a guest with no account required
Screenshots
Verdict
The clearest difference is in-app purchases: System Design Refresher at none against Tavio's 3. Tavio's advantage is update cadence (every 8 days vs monthly) and iOS requirement (13.0 vs 26.2). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Tavio sells 3 in-app purchases, starting at $4.99 per month. System Design Refresher asks for nothing beyond the download.
Tavio ships an update every 8 days, System Design Refresher monthly. The most recent releases landed on October 19, 2026 and September 30, 2026 respectively.
| Parameter | Tavio | System Design Refresher |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days โ better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 13.0 โ better | 26.2 |
| Further details โ not scored | ||
| Size | 69 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Rashad Shirizada | Saurabh Sharma |
In-app purchases
Tavio
- Monthly$4.991 Month
- Yearly Subsciption$39.991 Year
- 50 Hearts Pack$0.99
System Design Refresher
No in-app purchases
Questions
Is Tavio free?
Is System Design Refresher free?
Do Tavio or System Design Refresher have ads?
Which is updated more often, Tavio or System Design Refresher?
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