--- title: "Side Brain - AI Knowledge Hub - Reviews, Revenue and Downloads in Lithuania | Apple App Store" description: "Side Brain: Your AI Knowledge Vault IMPORTANT: Side Brain is a premium application. A subscription is required to access ALL features. There is no free tier. In a world drowning in content, your abil" --- # Side Brain - AI Knowledge Hub — Lithuania > Read Later & Summarize ![Side Brain App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/16/af/6e/16af6ed3-e579-2543-42ac-5f5aeec7fbaf/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Petr Nezval](https://apptail.io/developer/petr-nezval-AlyCBb) **Category:** Productivity **Rating:** N/A (0 ratings) **Price:** Free **Bundle ID:** com.nezval.Side-Brain **Store:** Apple App Store **Country:** Lithuania **Version:** 1.2.6 (released 2026-09-20) **Original Release:** 2026-02-03 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/lt/app/app/id6758042214) **AppTail Page:** [https://apptail.io/app/side-brain-read-later-ai-LOsy/lithuania](https://apptail.io/app/side-brain-read-later-ai-LOsy/lithuania) ## Side Brain Description Side Brain: Your AI Knowledge Vault IMPORTANT: Side Brain is a premium application. A subscription is required to access ALL features. There is no free tier. In a world drowning in content, your ability to capture and retain information is your greatest advantage. Side Brain is not just a read-later app; it is an active extension of your mind, powered by state-of-the-art AI. Stop letting insights slip through your fingers. Transform your passive reading list into an intelligent, searchable knowledge base. WHY SIDE BRAIN? You consume content every day, but how much do you remember? Side Brain bridges the gap between consuming information and mastering it. It combines a distraction-free reader with a powerful AI engine that organizes, summarizes, and retrieves knowledge instantly. KEY FEATURES AI-Powered Summaries Time is scarce. Why read a whole article for one good idea? Instant Insights: Get bullet-point takeaways in seconds. Decide Faster: Know immediately if an article is worth your focus. YouTube to Text: Save videos to get a full transcript and summary instantly. Professional AI Translation Great knowledge isn't always in your language. Natural Quality: Our AI rewrites sentences to sound natural and professional, not robotic. Seamless: Read foreign press or papers as if they were written for you. Billingual Toggle: Switch between original and translated text anytime. Contextual Second Brain Search Standard search finds keywords. Side Brain finds answers. Ask Your Library: Don't search "dopamine." Ask: "How does cold exposure affect dopamine?" Connect Insights: The app understands meaning, not just text. It retrieves paragraphs that answer your question. Recall Instantly: Find that specific quote from months ago. Focus-First Reading The web is full of distractions. Clean Reader: No ads, banners, or pop-ups. Just clean text. Adaptive Themes: Dark and Light modes for comfortable reading. Privacy First Private by Design: We do not sell user data. Secure: Your library is yours alone. WHO IS IT FOR? Researchers: Turn sources into a structured database. Knowledge Workers: Capture everything, find it instantly. Students: Outline theses by asking your library questions. Lifelong Learners: Ensure what you read today is useful tomorrow. HOW IT WORKS See it: Find an article in any app. Share it: Tap Share and select Side Brain. Master it: Open Side Brain to read, summarize, or query. SUBSCRIPTION INFORMATION Side Brain is a paid service to ensure high-quality AI processing without selling your data. Full Access: Unlocks unlimited summaries, translations, search, and sync. Auto-Renewal: Renews automatically unless canceled 24h before the period ends. Management: Turn off auto-renewal in Apple ID Settings. Billing: Charged within 24h prior to the end period. Terms of Use (EULA): ## Side Brain Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/24/e8/89/24e889dd-72eb-82bc-eb45-cb977524348c/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-01-20_at_22.09.05.png/2048x2732.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1e/c2/51/1ec25182-01bd-4e8e-dbb8-501755e5cc5b/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-01-20_at_22.06.51.png/2048x2732.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/30/30/a0/3030a045-6592-eefa-d844-84ec6bbd9e89/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-01-20_at_22.06.36.png/2048x2732.png) ## Side Brain In-App Purchases | Item | Price | |------|-------| | Monthly Access | €5.99 | | Yearly Access | €59.99 | ## Side Brain Available In - [Vietnam](https://apptail.io/app/side-brain-read-later-ai-LOsy/vietnam) - [Barbados](https://apptail.io/app/side-brain-read-later-ai-LOsy/barbados) - [Bahrain](https://apptail.io/app/side-brain-read-later-ai-LOsy/bahrain) - [Bermuda](https://apptail.io/app/side-brain-read-later-ai-LOsy/bermuda) - [Bolivia](https://apptail.io/app/side-brain-read-later-ai-LOsy/bolivia) - [Botswana](https://apptail.io/app/side-brain-read-later-ai-LOsy/botswana) - [Belarus](https://apptail.io/app/side-brain-read-later-ai-LOsy/belarus) - [Belize](https://apptail.io/app/side-brain-read-later-ai-LOsy/belize) - [Chile](https://apptail.io/app/side-brain-read-later-ai-LOsy/chile) - [China](https://apptail.io/app/side-brain-read-later-ai-LOsy/china) - [Colombia](https://apptail.io/app/side-brain-read-later-ai-LOsy/colombia) - [Cyprus](https://apptail.io/app/side-brain-read-later-ai-LOsy/cyprus) - [Australia](https://apptail.io/app/side-brain-read-later-ai-LOsy/australia) - [Algeria](https://apptail.io/app/side-brain-read-later-ai-LOsy/algeria) - [Ecuador](https://apptail.io/app/side-brain-read-later-ai-LOsy/ecuador) - [Estonia](https://apptail.io/app/side-brain-read-later-ai-LOsy/estonia) - [Egypt](https://apptail.io/app/side-brain-read-later-ai-LOsy/egypt) - [Finland](https://apptail.io/app/side-brain-read-later-ai-LOsy/finland) - [Grenada](https://apptail.io/app/side-brain-read-later-ai-LOsy/grenada) - [Guyana](https://apptail.io/app/side-brain-read-later-ai-LOsy/guyana) - [Hong Kong SAR China](https://apptail.io/app/side-brain-read-later-ai-LOsy/hong-kong) - [Jamaica](https://apptail.io/app/side-brain-read-later-ai-LOsy/jamaica) - [Jordan](https://apptail.io/app/side-brain-read-later-ai-LOsy/jordan) - [Japan](https://apptail.io/app/side-brain-read-later-ai-LOsy/japan) - [Kenya](https://apptail.io/app/side-brain-read-later-ai-LOsy/kenya) - [Cayman Islands](https://apptail.io/app/side-brain-read-later-ai-LOsy/cayman-islands) - [Sri Lanka](https://apptail.io/app/side-brain-read-later-ai-LOsy/sri-lanka) - [Lithuania](https://apptail.io/app/side-brain-read-later-ai-LOsy/lithuania) - [Madagascar](https://apptail.io/app/side-brain-read-later-ai-LOsy/madagascar) - [North Macedonia](https://apptail.io/app/side-brain-read-later-ai-LOsy/north-macedonia) - [Mali](https://apptail.io/app/side-brain-read-later-ai-LOsy/mali) - [Malta](https://apptail.io/app/side-brain-read-later-ai-LOsy/malta) - [Mauritius](https://apptail.io/app/side-brain-read-later-ai-LOsy/mauritius) - [Mexico](https://apptail.io/app/side-brain-read-later-ai-LOsy/mexico) - [Namibia](https://apptail.io/app/side-brain-read-later-ai-LOsy/namibia) - [Nigeria](https://apptail.io/app/side-brain-read-later-ai-LOsy/nigeria) - [Nepal](https://apptail.io/app/side-brain-read-later-ai-LOsy/nepal) - [Oman](https://apptail.io/app/side-brain-read-later-ai-LOsy/oman) - [Panama](https://apptail.io/app/side-brain-read-later-ai-LOsy/panama) - [Peru](https://apptail.io/app/side-brain-read-later-ai-LOsy/peru) - [Paraguay](https://apptail.io/app/side-brain-read-later-ai-LOsy/paraguay) - [Qatar](https://apptail.io/app/side-brain-read-later-ai-LOsy/qatar) - [Saudi Arabia](https://apptail.io/app/side-brain-read-later-ai-LOsy/saudi-arabia) - [Suriname](https://apptail.io/app/side-brain-read-later-ai-LOsy/suriname) - [El Salvador](https://apptail.io/app/side-brain-read-later-ai-LOsy/el-salvador) - [Thailand](https://apptail.io/app/side-brain-read-later-ai-LOsy/thailand) - [Taiwan](https://apptail.io/app/side-brain-read-later-ai-LOsy/taiwan) - [Uganda](https://apptail.io/app/side-brain-read-later-ai-LOsy/uganda) - [United States](https://apptail.io/app/side-brain-read-later-ai-LOsy/united-states) - [Uruguay](https://apptail.io/app/side-brain-read-later-ai-LOsy/uruguay) - [British Virgin Islands](https://apptail.io/app/side-brain-read-later-ai-LOsy/british-virgin-islands) - [Dominican Republic](https://apptail.io/app/side-brain-read-later-ai-LOsy/dominican-republic) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*