Yonda vs CodeAscent
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yonda
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You didn't start learning Japanese to clear flashcards. You started because there's something you want to read. Yonda's Scan & Read turns that something — the manga volume on your shelf, a novel, a menu, a street sign, a newspaper — into your curriculum. Photograph up to five pages. Yonda reads them (vertical text, furigana, real reading order), checks every word against what you already know, and builds a lesson out of only the kanji and vocabulary YOU are missing. You study it with serious spaced repetition, pass a 100% comprehension exam, and then read your own pages — furigana you can toggle, a tap-gloss on every word colored by your mastery, and translations that unlock only after you've proven you don't need them. That last part matters. Translation apps read Japanese FOR you, which is why you can point a camera at manga for years and never learn to read. Yonda refuses to do the reading until you can. HOW IT WORKS 1. Photograph real Japanese — up to 5 pages per scan. 2. Fix any misreads in a 30-second review. The OCR is good; you make it perfect. 3. Yonda diagnoses the gap: exactly which kanji and words you don't know yet, based on your own study history. 4. Study a lesson built from just that gap. Wrong answers get an explanation on the spot, not a red X. 5. Pass a clean-sweep exam. 100%, no partial credit. 6. Read your pages. They join your My Scans shelf — a growing library of real Japanese you've conquered. Words from your scans keep coming back in long-term reviews, so what you read stays read. THE ENGINE UNDERNEATH Yonda is a full Japanese course, not just a scanner. • Kana, kanji, vocabulary, and grammar on a path from zero to N1. N5 is polished today; higher levels are in active development. • FSRS spaced repetition — reviews arrive when you're about to forget, not on a corporate schedule. • Wrong-answer options drawn from real confusability data, never random, so tests actually test. • AI conversation practice for when you want to use what you've learned. WHAT YOU WON'T FIND • No streak guilt. No hearts, no lives, no mascot crying at you. • No ads, anywhere. • No selling or sharing your data. Scan photos live in a private bucket, visible only to you, and are deleted when you delete the scan. Honest limits: scanning needs an internet connection, and you should know kana before your first scan (the free N5 course starts there). Japanese is hard. Yonda doesn't pretend otherwise — it just makes every hour count. Free: the full N5 course plus one trial scan, forever. Pro is coming soon. Questions and bug reports are read by a human — support@irons.la.
CodeAscent
This app introduces children as young as three to coding and AI concepts through an engaging space adventure. It features narrated lessons for pre-readers and allows older kids to write simplified Python code. Parents appreciate its ad-free, child-safe environment with robust parental controls.
- Early coding and AI introduction for ages 3+
- Narrated lessons for pre-readers
- Write simplified Python code
- Problem-solving and computational thinking
- 100% ad-free and child-safe
- Parental controls
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Most coding apps wait until kids can read. CodeAscent Kids starts at age 3—and grows with them all the way to writing real Python. Your child becomes a pilot, flying a jet across the galaxy with Py the snake as their co-pilot. Every mission teaches a real coding or AI concept through play—and because every lesson is narrated aloud, even pre-readers can dive in. From the makers of CodeAscent, the Python learning app for teens and adults—now reimagined for your youngest learners. TWO ADVENTURES THAT GROW WITH YOUR CHILD • Little Pilots (ages 3–6): tap and drag to learn sequencing, loops, and the basics of how AI thinks—no reading required. • Code Cadets (ages 6+): write real, simplified Python in a kid-friendly code editor, then explore how AI actually works. WHAT THEY'LL LEARN • Real Python concepts: commands, sequences, loops, variables, conditions, functions • AI basics: patterns, training, and prediction—explained for curious young minds • Problem-solving and computational thinking, disguised as a space adventure WHY PARENTS TRUST IT • 100% ad-free and child-safe • Every lesson read aloud by a warm, friendly voice • Parental controls behind a grown-ups-only gate • No data selling, ever Start free, then unlock the full 40+ mission journey with a 7-day free trial. Subscriptions: Annual or Monthly. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms of Use: https://www.codeascent.online/terms Privacy Policy: https://www.codeascent.online/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Yonda at none against CodeAscent's 4. Yonda also leads on iOS requirement (13.0 vs 15.1). On price, 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. CodeAscent sells 4 in-app purchases, starting at $7.99 per month. Yonda asks for nothing beyond the download.
| Parameter | Yonda | CodeAscent |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 25 MB | 214 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeremy Irons | Londi Tangu |
In-app purchases
Yonda
No in-app purchases
CodeAscent
- Monthly Pro$7.991 Month
- Pro Monthly$7.991 Month
- Annual Pro7 Days trial$39.991 Year
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- Annual Plan — 7-Day Free Trial7 Days trial$39.991 Year









