Synapse vs Aquila
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synapse
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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.
Aquila
This app offers a structured 30-day English learning path designed by an experienced teacher. It includes daily lessons, smart reviews, pronunciation practice, and interactive exercises to improve grammar and speaking skills. The app also tracks your English usage outside of the application.
- 30-day structured learning route
- Smart spaced repetition reviews
- Pronunciation lab with phonetic alphabet
- Interactive speaking and writing practice
- Tracks English usage outside the app
- Placement test for personalized starting level
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Aquila is a teacher's English course, not an algorithm's. Teacher Jhon has taught more than 7,800 lessons to 885 students worldwide, with a 5.0 rating on italki for five years running. Aquila turns his method and his grammar guide into a 30-day route you can follow from day one. HOW IT WORKS • 3-minute placement test: twenty questions, four per level, and you know exactly where to start (A1 to C1). • 30-day route: every day one review, one lesson, one practice round. Miss a day and the route shifts; it never resets. • Smart review: Aquila remembers what you are about to forget and brings it back at the right moment (FSRS spaced repetition). • Pronunciation Lab with the full phonetic alphabet and audio. • Explanations that name the traps: word order, the empty subject "it", 13 versus 30, American dates, the -ed and -s endings. • A private tutor on your iPhone: explanations, hints, a conversation partner and new texts written on the device itself with Apple Intelligence. Nothing you write or say leaves your phone. On iPhone 15 Pro and later with Apple Intelligence; everything else works on every iPhone with iOS 18. SEVEN WAYS TO PRACTISE EVERY CHAPTER • Read a short text with a glossary in your language, listen to it in three passes, say it in the speaking lab and record yourself. • Write a short message and get feedback on two things, not on everything. • Talk with a character who uses the words you are reviewing. YOUR ENGLISH OUTSIDE AQUILA COUNTS • Log the series with captions, the games, the chats and the songs: every week you see your minutes of English in and out of the app. • A forgiving streak and one reminder a day, at the time you choose. FOR YOUR TEACHER • A packet with your summary, your recordings and your texts, built on your phone and shared only when you decide. With a teacher attached, the app tells them everything and invents nothing. TECH ENGLISH A complete 47-unit course for people who work with computers and speak no English yet: hardware, software, files, email, the terminal, Linux, Windows, macOS, meetings, interviews and presentations. From zero (A1) to advanced (C1). The first two units are free. WHAT IS FREE Part 1 of the course (word order, numbers and time, pronunciation essentials), the placement test, the daily review and the phonetic alphabet. Aquila Pro opens Parts 2 to 6, the full Tech course and the Aquila tutor. You can also buy the Tech course on its own, or unlock everything forever with one payment. A LOOK OF ITS OWN Aquila looks like a 1992 computer lab: chiseled buttons, pixel type, no neon. Compact, calm and made for daily use. Lifetime unlock and the Tech English course are one-time purchases. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Synapse at none against Aquila's 4. Synapse also leads on update cadence (every 2 days vs every 2 months). 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
Both are free to download. Aquila sells 4 in-app purchases, starting at $2.99 per month. Synapse asks for nothing beyond the download.
Synapse ships an update every 2 days, Aquila every 2 months. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.
| Parameter | Synapse | Aquila |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17 — better | 18.0 |
| Further details — not scored | ||
| Size | 181 MB | 82 MB |
| Age rating | 12+ | 4+ |
| Developer | Mattia Capomagi | Jhon Hernandez |
In-app purchases
Synapse
No in-app purchases
Aquila
- Aquila Pro — Monthly$2.991 Month
- Aquila Pro — Annual$19.991 Year
- Tech English Course$14.99
- Aquila Pro — Lifetime$34.99









