AI Vocab Note vs Tangoi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AI Vocab Note
Build a custom vocabulary notebook with AI-powered definitions and explanations tailored to your learning style. Easily add new words through typing or image recognition, and organize them into folders for efficient study.
- AI-generated definitions
- Customizable explanation styles
- Image recognition for word input
- Vertical text detection
- Folder organization
- Editable explanations
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Create your personalized vocabulary notebook with AI. AI generates word definitions and explanations in your preferred style. Examples: - "Explain like I'm 5 years old" - "Like a friendly teacher" - "In social media slang" You can input vocabulary through both manual typing and image recognition. The image recognition feature can detect vertical text, making it easy to quickly search for words you encounter while reading novels or books. Searched vocabulary can be organized and saved in folders. You can also edit and customize the AI-generated explanations using the edit mode.
Tangoi
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Build your vocabulary across Japanese, Spanish, and English with AI-powered word lookup and an interactive chat tutor. FEATURES - AI Word Lookup: Enter any word or phrase and instantly get translations with romaji, furigana, kanji, and meanings generated by AI. - Interactive Chat Tutor: Practice conversations about your vocabulary words with an AI chat tutor that helps you understand grammar, usage, and cultural context. - Flashcard Quizzes: Add words to your quiz deck and test yourself with flashcards. Spaced repetition keeps difficult words coming back until you master them. - Multi-Language Support: Study Japanese, Spanish, and English in any direction. Switch your language pair anytime in Settings. - iCloud Sync: Your vocabulary syncs automatically across all your devices. - Daily Streak Tracking: Build a daily practice habit and track your progress. - Siri Shortcuts: Quickly translate and save words using Siri. END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: AI Vocab Note at none against Tangoi's 3. Tangoi's advantage is ads (none vs shown) and update cadence (every 2 days vs every 4 weeks). On price, 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. Tangoi sells 3 in-app purchases, starting at $1.99 per 7 days. AI Vocab Note asks for nothing beyond the download.
AI Vocab Note ships an update every 4 weeks, Tangoi every 2 days. Both last shipped on November 5, 2026.
| Parameter | AI Vocab Note | Tangoi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 16 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | takeshi ogawa | Jorge Mattei |
In-app purchases
AI Vocab Note
No in-app purchases
Tangoi
- Weekly$1.997 Days
- Monthly$4.991 Month
- Yearly7 Days trial$39.991 Year
