Comparison

Synapse vs oqou | Learn Languages

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

Head to head
About

Synapse

Features
Read full description

Most apps are built to keep you scrolling. Synapse is built to make you stop, just once a day. It gives you a single fact, carefully written and drawn from the deepest corners of science and history. No feed, no infinite scroll, just one idea worth carrying with you, delivered whenever you choose. These are not trivia. Each fact is a small story: the slow evaporation of black holes, declassified Cold War experiments, animals that bend the laws of physics, words that carry the fingerprints of ancient civilizations. Written to be read in a minute, and remembered far longer. Ten worlds to explore: • Abysses & Cosmos: the physics of deep space and the ocean floor • Dark History: real, documented, and deliberately forgotten • Biohacking: the science of pushing human biology to its limits • Mind & Neuroscience: the strange architecture of perception • Weird Fauna: evolution's most brutal and brilliant solutions • Future Tech: what tomorrow's labs are building today • Etymology Lab: words as archaeological artifacts • Megastructures: impossible engineering, ancient and future • Geopolitics: borders that defy logic • Daily Science: the deep laws hidden in ordinary moments A streak grows with every day you show up, and when life gets in the way a shield protects what you have built, so a single missed day never erases weeks of curiosity. Every fact also carries a rarity, so the more you read, the richer your collection becomes: a private map of everything you have learned. Curiosity is better when it travels. Follow friends, compare streaks on the leaderboard, and share the facts that move you. Synapse asks for one minute a day. What you do with the idea is up to you.

About

oqou | Learn Languages

Learn languages by reading content you enjoy. Import your own books, articles, or text, and tap any word for instant translation and context. A smart system helps you remember new vocabulary through spaced repetition.

Highlights
  • Import custom content (EPUB, PDF, web links)
  • Instant word translation and article lookup
  • AI-powered context explanations
  • Spaced repetition vocabulary review
  • CEFR level assessment
  • Offline reading and audio
Features
Read full description

oqou turns anything you read into a language lesson. Textbooks and flashcards drill you on words you'll never use. oqou flips it: read the books, articles, and stories YOU actually want to read, and pick up the language as you go. It's real immersion through comprehensible input, the most natural way to build vocabulary that lasts. BRING YOUR OWN CONTENT Import almost anything and start reading in seconds: • Books and documents: EPUB, PDF, DOCX, TXT • Web articles: paste a link for a clean, readable view • Anything else: paste text, or share straight from Safari, Books, or any app FIND YOUR LEVEL, THEN READ AT IT New to a language, or not sure where you stand? Take a quick level check in onboarding, or the full test in Settings, and oqou places you on the CEFR scale from A1 to C2, with tips made for you. Your library then fills with leveled stories that fit, in all 12 languages. A READER YOU'LL WANT TO OPEN A calm, Apple Books-style reader with page-turn animations, adjustable text size, warm reading themes, and full right-to-left support for Arabic. Just you and the page. TAP ANY WORD TO UNDERSTAND IT INSTANTLY • Instant translation into your language, right on your device • The correct article for every noun the moment you tap it: der/die/das (German), le/la (French), el/la (Spanish), il/la (Italian), o/a (Portuguese) • Explain in Context: an AI note on what the word means here, its tone and register, near-synonyms, and a natural way to phrase it HEAR IT SPOKEN Your device's own voice reads any page or word aloud from the moment you install, and you can follow along word by word or sentence by sentence. Ten natural, human-sounding voices are an optional download; once they are on your device they read to you entirely offline. REMEMBER WHAT YOU LEARN Save any word to your glossary with a tap. A smart spaced-repetition system brings each word back right before you'd forget it, so new vocabulary actually sticks. MADE TO FEEL YOURS Every book gets its own beautifully generated cover. Focus on one language or study several at once. See which words are slipping from memory and rescue them before they're gone. PRIVATE BY DESIGN The core reading experience runs entirely on your device. No account, no sign-up, no tracking. LANGUAGES Read and learn in German, French, Spanish, Italian, Portuguese, Russian, Arabic, Japanese, Chinese, Korean, Turkish, and English, and translate into your own language. oqou itself is fully translated into all 12, so the app speaks your language too. FREE TO START Take the level test and read the built-in starter stories plus your first three documents free, with on-device translation, AI word explanations, all ten read-aloud voices, and spaced review included. OQOU PRO Go further with a subscription: • Unlimited documents • Grammar worksheets, with the rule explained after every answer • Export any story as a beautifully designed PDF, with its own cover and a vocabulary list • Richer cloud AI explanations • Memory insights and retention forecast Oqou Pro is an auto-renewable subscription. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. SAY HI Email: support@oqou.app Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://oqou.app/privacy Turn the next thing you read into the next thing you learn.

Screenshots

Synapse3 screens
oqou | Learn Languages4 screens

Verdict

The call

The clearest difference is in-app purchases: Synapse at none against oqou | Learn Languages's 3. Synapse also leads on update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. oqou | Learn Languages sells 3 in-app purchases, starting at $8.99 per month. Synapse asks for nothing beyond the download.

UpkeepUpdate frequency

Synapse ships an update every 2 days, oqou | Learn Languages every 3 weeks. Both last shipped on September 10, 2026.

Scorecard2 real differences · 8 level
Synapse versus oqou | Learn Languages: the parameters behind the verdict, then further details
ParameterSynapseoqou | Learn Languages
PriceFreeFree
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17 — better18.0
Further details — not scored
Size13 MB41 MB
Age rating12+4+
DeveloperMattia CapomagiCUMA ALI KESICI

In-app purchases

None

Synapse

No in-app purchases

3 purchases

oqou | Learn Languages

Subscriptions3
  • Oqou Pro 1 Month3 Days trial$8.991 Month
  • Oqou Pro 3 Months3 Days trial$22.993 Months
  • Oqou Pro Annual7 Days trial$69.991 Year

Questions

Is Synapse free?
Synapse is free to download, with no in-app purchases.
Is oqou | Learn Languages free?
oqou | Learn Languages is free to download, with in-app purchases available.
Do Synapse or oqou | Learn Languages have ads?
Neither Synapse nor oqou | Learn Languages shows ads.
Which is updated more often, Synapse or oqou | Learn Languages?
Synapse ships an update every 2 days, and oqou | Learn Languages every 3 weeks. Most recently, Synapse was updated on September 10, 2026 and oqou | Learn Languages on September 10, 2026.

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