Keigo Pro vs Onomanabi
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Keigo Pro
Read full descriptionHide full description
Master keigo with confidence. Keigo Pro is a practical Japanese learning app designed for learners, professionals, and anyone who wants to use polite Japanese naturally in real situations. Instead of memorizing isolated expressions, youโll learn how keigo works, when to use it, and how to apply it in business, service, and everyday communication. Whether youโre preparing for work in Japan, writing formal emails, or trying to understand respectful and humble speech more clearly, Keigo Pro helps you build real confidence. What you can do in Keigo Pro: โข Conjugate verbs into ไธๅฏง่ช, ๅฐๆฌ่ช, and ่ฌ่ญฒ่ช See polite, respectful, and humble forms instantly, with clear explanations of who uses each form and when. โข Study with structured courses Learn step by step from beginner to advanced, including keigo foundations, workplace usage, business emails, seasonal greetings, and baito keigo. โข Learn through examples and quizzes Practice with guided lessons, comparisons, interactive quizzes, and real-use scenarios. โข Write better Japanese emails Browse ready-to-use templates with seasonal openings, formal phrasing, and business-friendly expressions. โข Build your phrase library Study essential fixed expressions such as ใไธ่ฉฑใซใชใฃใฆใใใพใ, ๆฟ็ฅใใใใพใใ, and ใใใใพใใพใใ, with usage notes and common mistakes. โข Understand what to avoid Learn common overused or unnatural expressions, including examples of ใใคใๆฌ่ช and more standard alternatives. โข Study in English or Japanese Use the app in Japanese or in bilingual English-Japanese mode. Keigo Pro is built for people who want more than textbook knowledge. Itโs for learners who want to actually use keigo well. If keigo has ever felt intimidating, this app was made for you. Created by Carlos Ramos, a Japanese teacher who wanted a clearer, more practical way to learn keigo.
Onomanabi
Read full descriptionHide full description
Stop translating. Start feeling. Onomanabi teaches Japanese onomatopoeia โ the sound and mimetic words (giongo and gitaigo) that carry nuance no dictionary translation captures. The kana themselves move, so you feel the difference before you read the explanation. Built for intermediate-to-advanced learners (JLPT N3โN1) and Japanese teachers alike. WHY ONOMATOPOEIA "Doki-doki." "Zaa-zaa." "Kira-kira." Japanese is full of words whose real meaning lives in a feeling, not a translation. Onomanabi makes that feeling visible. FEEL IT THROUGH MOTION Every word moves in its own way โ spinning, bouncing, stretching, trembling โ so you feel the difference between "zaa-zaa" and "para-para" instead of just reading about it. USAGE MAPS Each word sits on a map of nearby words, with axes chosen for the subject: soft to hard for textures, negative to positive for feelings. COMPARISON MODE (PREMIUM) Tap a nearby word on the usage map and the comparison opens right below, with a native note on the decisive difference โ the nuance dictionaries flatten out. QUIZZES THAT STICK Multiple quiz types (4-choice, typing, comparison) with mistake-prioritized, spaced-repetition review. LEVELS & COLLECTION A guided six-level path and word-collection progress, plus a daily word to keep you coming back. FOR TEACHERS A category- and level-organized reference for a subject most textbooks barely cover. FREE TO START Levels 1โ2, part of the dictionary, and usage maps are free โ no account needed. Your progress and reviews are saved on your device. The dictionary, quizzes, and reviews work offline. PREMIUM (ONE-TIME, NOT A SUBSCRIPTION) - 1,500+ words - Levels 3โ6 - Comparison mode and comparison quizzes - No further payments, ever Japanese nuance isn't something you translate. It's something you feel. Start with today's word.
Screenshots
Verdict
The clearest difference is price: Onomanabi at Free against Keigo Pro's $4.99. Keigo Pro's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Onomanabi is free to download; Keigo Pro costs $4.99 up front. Onomanabi sells 2 one-off in-app purchases. Keigo Pro asks for nothing beyond the download.
| Parameter | Keigo Pro | Onomanabi |
|---|---|---|
| Price | $4.99 | Free โ better |
| Update frequency | โ | Every 6 days |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 2 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | Carlos Ramos Fuentes | Takeshi Nogi |
In-app purchases
Keigo Pro
No in-app purchases
Onomanabi
- Onomanabi Premium (Welcome)$11.99
- Onomanabi Premium$14.99








