Comparison

Keigo Pro vs NihonGo

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Keigo Pro

Features
Read 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, you’ll learn how keigo works, when to use it, and how to apply it in business, service, and everyday communication. Whether you’re 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: β€’ Conjugate verbs into 丁寧θͺž, ε°Šζ•¬θͺž, and 謙譲θͺž See polite, respectful, and humble forms instantly, with clear explanations of who uses each form and when. β€’ Study with structured courses Learn step by step from beginner to advanced, including keigo foundations, workplace usage, business emails, seasonal greetings, and baito keigo. β€’ Learn through examples and quizzes Practice with guided lessons, comparisons, interactive quizzes, and real-use scenarios. β€’ Write better Japanese emails Browse ready-to-use templates with seasonal openings, formal phrasing, and business-friendly expressions. β€’ Build your phrase library Study essential fixed expressions such as γŠδΈ–θ©±γ«γͺγ£γ¦γŠγ‚ŠγΎγ™, ζ‰ΏηŸ₯γ„γŸγ—γΎγ—γŸ, and γ‹γ—γ“γΎγ‚ŠγΎγ—γŸ, with usage notes and common mistakes. β€’ Understand what to avoid Learn common overused or unnatural expressions, including examples of γƒγ‚€γƒˆζ•¬θͺž and more standard alternatives. β€’ 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. It’s 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.

About

NihonGo

Features
Read full description

Same word. Two meanings. Can you hear the difference? hashi is chopsticks - or a bridge. ame is rain - or candy. The only difference is the pitch: the melody of high and low that Japanese textbooks never teach. NihonGo trains your ear to hear it, and your voice to say it. EAR SPRINT - 60 seconds a day A fast two-choice listening game. Hear a word, pick what it was. 36 minimal pairs, including the ones that only separate when a particle follows. One sprint keeps your streak safe - no guilt, ever. PATTERN DRILL - name the shape Hear a word and say which of the four accent types it is: atamadaka, nakadaka, odaka or heiban. 611 words, drawn evenly across all four so no pattern can hide. PITCH KARAOKE - say it and see it Hold the mic, say the word, and watch your pitch fly across the screen. Your voice is analyzed on-device in real time - nothing is recorded or uploaded. HOW THE AUDIO WAS MADE Every word's accent comes from the OpenJTalk accent dictionary. Then every recording was measured - the actual pitch curve checked against the accent it claims to teach. Words whose audio did not match were thrown out. 818 recorded, 611 kept. Nothing here is guessed. HONEST SCORING No fake praise. We show your pitch, mora by mora, against the target - where you rose, where you fell, and by how much. When you score well, you earned it. 100% OFFLINE, 100% PRIVATE Every sound ships with the app. No account, no cloud, no sync. Works on a plane. NIHONGO PRO Unlocks all training. Starts with a 7-day free trial, then monthly, yearly, or a one-time lifetime purchase. Made with headphones, not textbooks. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Keigo Pro4 screens
NihonGo4 screens

Verdict

The call

The clearest difference is price: NihonGo at Free against Keigo Pro's $4.99. NihonGo also leads on iOS requirement (15.0 vs 17.0). Keigo Pro's advantage is in-app purchases (none vs 3). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

NihonGo is free to download; Keigo Pro costs $4.99 up front. NihonGo sells 3 in-app purchases, starting at $8.99 per month. Keigo Pro asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
Keigo Pro versus NihonGo: the parameters behind the verdict, then further details
ParameterKeigo ProNihonGo
Price$4.99Free β€” better
Update frequencyβ€”Every 3 days
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 β€” better
Further details β€” not scored
Size2 MB76 MB
Age rating4+4+
DeveloperCarlos Ramos FuentesAMOR Limited Liability Company

In-app purchases

None

Keigo Pro

No in-app purchases

3 purchases

NihonGo

Subscriptions2
  • Nihongo Pro Monthly7 Days trial$8.991 Month
  • Nihongo Pro Yearly7 Days trial$59.991 Year
One-time1
  • Nihongo Pro Lifetime$129.99

Questions

Is Keigo Pro free?
Keigo Pro costs $4.99, with no in-app purchases.
Is NihonGo free?
NihonGo is free to download, with in-app purchases available.
Do Keigo Pro or NihonGo have ads?
Neither Keigo Pro nor NihonGo shows ads.

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