Synapse vs NidNoi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synapse
This app uses a science-based approach to language learning, focusing on auditory training and immersive stories. It helps users build vocabulary through real-life object recognition and understand grammar visually. The app also facilitates practice with native speakers and offers courses for various alphabets.
- Immersive story podcasts
- Targeted ear training exercises
- Alphabet courses from zero
- Real-life object vocabulary learning
- Visual grammar tables
- Language exchange partnerships
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You are not too old. The "critical period" is a myth: adult brains still rewire with intentional focus plus quality restful sleep. Synapse is a language learning app built on that science: train your ear first, make mistakes on purpose, and let each night of sleep lock in the day's practice. No streaks to protect, no guilt trips. STORY PODCASTS Follow a whole story in your new language on day 1. Short, immersive stories told slowly and clearly: read along word by word, tap anything to learn it instantly, and keep listening with the screen locked — a podcast that teaches. EAR TRAINING Hear the difference between words that used to sound identical. Your native language decides which sounds you can't hear yet; listening exercises built for your exact native/target pair train you to catch what native speakers hear effortlessly. Soundalike drills then tackle the words that trip learners up. ALPHABETS FROM ZERO Sound out real words in an alphabet that was pure noise to you last week. Letter-by-letter audio courses take you from zero, one sound at a time. (Rolling out language by language.) FLASHCARDS FROM YOUR LIFE Learn the words your own life is made of. Point your camera at anything with Language Lens and learn its name on the spot; spaced repetition then brings each word back right before you'd forget it, so it sticks for good. GRAMMAR YOU CAN SEE Say the right form without reciting a rule. Conjugations and cases as clear visual tables, linked to real example sentences — patterns instead of memorized rules. LEARN TOGETHER Trade your first real sentences with another person this week. Pair up with a partner and exchange short daily messages in each other's target language. Family kits (select language pairs) give parents and kids a shared track. 26 LANGUAGES Korean, Japanese, Spanish, French, Vietnamese, Russian, German, Italian, Portuguese, Arabic, Hindi and more — with the interface in your own language too. THE METHOD Free video lessons at synapseko.com explain the science behind it all. Your progress follows you to any device with a free account. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
NidNoi
Learn Thai, Mandarin Chinese, or Japanese with short, daily lessons. Build confidence through structured courses, vocabulary practice, reading passages, and cultural insights. Works offline and tracks your progress.
- Short daily lessons
- Structured language courses
- Vocabulary flashcards
- Reading comprehension practice
- Offline functionality
- Study streaks and reminders
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NidNoi helps you learn Thai, Mandarin Chinese, or Japanese a little every day. “Nid Noi” (นิดหน่อย) means “a little” in Thai — and that’s the idea: short, clear lessons that build real confidence over time. Pick a course on first launch; progress for each language is saved separately, and you can switch anytime in Settings. Thai — from the alphabet to real reading • Step-by-step course across five levels (A1 through C1–C2) • Guided alphabet in small batches — stroke animation, tracing, and short quizzes • Consonant classes, vowels, and tone marks with audio and review cards • 1,600+ vocabulary words with sound-by-sound breakdowns • 150 graded reading passages and 55 everyday dialogues • Grammar units, travel phrases, and classifier practice Mandarin Chinese — HSK-aligned path • Nineteen units across five levels (HSK 1→5 path, up to ~2,500 words) • Unit 1 foundations: four tones, pinyin map, stroke-order rules, first Hanzi to trace • Classroom-style lessons: dialogue → language points → vocabulary quiz → exercises • Soft unlock so later bands open as you finish most of the previous one Japanese — JLPT-aligned path • Nineteen units across five levels (JLPT N5→N1 path, up to ~6,000+ words) • Unit 1 foundations: writing systems, full kana charts, then hiragana and katakana in small row batches • Classroom-style lessons: dialogue → culture → vocabulary → language points → reading → exercises • Furigana readings and a clearer kanji-friendly typeface Built for daily practice • Flashcards with spaced repetition • Quizzes — vocabulary, listening, and reading comprehension • Cultural photo bites woven into every course • Study streaks and optional daily reminders • Share what you’re learning as story cards • Works offline — no account required • Optional sign-in to back up progress across devices Whether you’re traveling, living abroad, or simply curious, NidNoi makes starting feel approachable — one small step at a time. More features and learning content will continue to be added over time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Synapse at 100% against NidNoi's 0%. Synapse also leads on rating (5.0 vs 3.0) and ratings volume (3 vs 1). NidNoi's advantage is in-app purchases (none vs 4). On price, update cadence, ads and device support 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. Synapse sells 4 in-app purchases, starting at $9.99 per 7 days. NidNoi asks for nothing beyond the download.
Synapse holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of Synapse's written reviews are positive against 0% of NidNoi's.
Both ship on a similar rhythm, roughly every 5 days. Both last shipped on November 5, 2026.
| Parameter | Synapse | NidNoi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 days | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 185 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | The Synaptic Learning Company LLC | zhao lu |
Customer experience
Synapse
NidNoi
In-app purchases
Synapse
- Full Access$9.997 Days
- Full Access$29.991 Month
- Full Access7 Days trial$199.991 Year
- 100 Tutor Messages$1.99
NidNoi
No in-app purchases









