Comparison

SuuNavi vs 21日で学ぶ歎異抄

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

Head to head
About

SuuNavi

This AI-powered math tutor helps middle and high school students understand complex problems. Simply photograph or type a math question, and receive clear, step-by-step explanations and practice exercises. It fosters deep understanding through a cycle of explanation, practice, and reflection.

Highlights
  • AI-powered math problem explanation
  • Photo recognition for math problems
  • Step-by-step solution breakdown
  • Personalized practice problem generation
  • Progress tracking and review
  • On-demand learning anytime, anywhere
Features
Read full description

SuuNavi — A Gentle, Smart Math Teacher. SuuNavi is an AI-powered math learning app designed mainly for middle and high school students, as well as anyone who wants to study independently. Simply take a photo of a problem you do not understand, or type it in, and the AI will understand the question and explain the solution in a clear, easy-to-follow way. With a learning cycle of “Submit a problem → Get an explanation → Practice → Review and reflect,” SuuNavi helps learners move from “I think I get it” to “I truly understand it.” https://suunabi.cyberailabs.ai/ 1. About the App Being bad at math is not about talent. It is about learning the right way. Many students feel like they understand something in class, only to get stuck when they face a similar problem later. SuuNavi was created to change that feeling of “kind of understanding.” Through the cycle of "Understand → Practice → Check → Master", it helps learners move from “understanding by listening” to “being able to solve it on their own.” 2. How to Use SuuNavi Take a photo of the problem: Just snap a picture of the question with your phone. SuuNavi reads it and understands what the problem is asking. AI explanation: “Suu Sensei” explains the thinking process step by step, helping you understand not just the answer, but why it works. Practice problems: Based on the areas you struggle with, SuuNavi automatically gives you similar problems or slightly more advanced variations. Checking and advice: After you solve a problem, it is graded right away. The AI explains why an answer is wrong and tells you what to do next. Track your progress: Problems you fully understand and solve correctly are recorded as “cleared,” so you can see your progress over time. 3. Key Features A gentle and supportive AI teacher: It carefully finds the parts you do not understand and gives you hints on how to think. It is okay to make mistakes. You can learn with confidence. A learning flow that creates more “I got it!” moments: Instead of just memorizing answers, SuuNavi helps you deepen your understanding by thinking through why things work. Fast feedback and small wins: Your solved problems are recorded, so you can clearly see yourself improving step by step. Anytime, anywhere, at your own pace: Just take a photo to get started. Whether it is homework or review, you can solve problems right on the spot. 4. Recommended For Middle and high school students who want to regain confidence in math Independent learners who want to build a strong foundation through practice Students who want to improve their grades by understanding why things work Parents and children looking for a learning method that is effective and easy to continue 5. A Message from SuuNavi Math can be gentler and closer to everyday life. SuuNavi is an app that helps you grow your understanding at your own pace, together with a gentle and smart teacher. SuuNavi — With gentle explanations and step-by-step learning, you can truly understand each problem, one by one. A math app that grows with you. Terms of Use: https://suunabi.cyberailabs.ai/terms-of-use Privacy Policy: https://suunabi.cyberailabs.ai/privacy-policy Weekly Trial Plan: $1.99 Semester Plan: $19.99 Yearly Plan: $59.99

About

21日で学ぶ歎異抄

Features
Read full description

「初学者のための、21日で学ぶ歎異抄」は、歎異抄を初めて読む人に向けた学習アプリです。 序文から後序までを一日一条の形式で読み進め、原文、やさしい解説、図解、確認クイズを通して、少しずつ理解を深めていきます。 歎異抄は、親鸞の教えをめぐる誤解を歎き、聞き残された言葉を伝える書物として読まれてきました。短い言葉の中に、他力、本願、念仏、悪人正機、信心など、浄土真宗の大切なテーマが込められています。 このアプリでは、難しい専門語をいきなり暗記するのではなく、毎日の講義を通して「自分の言葉で受け止める」ことを大切にしています。 主な機能: - 21日間で序文から後序まで学べるカリキュラム - 初学者向けのやさしい解説 - 原文表示と難読語のふりがな - 重要語をその場で確認できる用語解説 - 各回の確認クイズ - 完了済みクイズからの復習 - 今日の問いに答えるメモ機能 - 次回講座の解放通知 - 復習通知 一度に多くを詰め込むのではなく、毎日ひとつのテーマに向き合うためのアプリです。 歎異抄を読んでみたいけれど、どこから始めればよいかわからない方。 浄土真宗の言葉を、暮らしの中で少しずつ学びたい方。 原文と解説を行き来しながら、落ち着いて読み深めたい方におすすめです。

Screenshots

SuuNavi4 screens
21日で学ぶ歎異抄4 screens

Verdict

The call

The clearest difference is in-app purchases: 21日で学ぶ歎異抄 at none against SuuNavi's 3. 21日で学ぶ歎異抄 also leads on update cadence (every 4 days vs fortnightly). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SuuNavi sells 3 in-app purchases, starting at $1.99 per 7 days. 21日で学ぶ歎異抄 asks for nothing beyond the download.

UpkeepUpdate frequency

SuuNavi ships an update fortnightly, 21日で学ぶ歎異抄 every 4 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
SuuNavi versus 21日で学ぶ歎異抄: the parameters behind the verdict, then further details
ParameterSuuNavi21日で学ぶ歎異抄
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size50 MB6 MB
Age rating4+4+
DeveloperCYBER AI LABS PTE. LTD.Yoshihide Matsumoto

In-app purchases

3 purchases

SuuNavi

Subscriptions3
  • Weekly Trial Plan$1.997 Days
  • Semester Plan$19.993 Months
  • Yearly Plan$59.991 Year
None

21日で学ぶ歎異抄

No in-app purchases

Questions

Is SuuNavi free?
SuuNavi is free to download, with in-app purchases available.
Is 21日で学ぶ歎異抄 free?
21日で学ぶ歎異抄 is free to download, with no in-app purchases.
Do SuuNavi or 21日で学ぶ歎異抄 have ads?
Neither SuuNavi nor 21日で学ぶ歎異抄 shows ads.
Which is updated more often, SuuNavi or 21日で学ぶ歎異抄?
SuuNavi ships an update fortnightly, and 21日で学ぶ歎異抄 every 4 days. Most recently, SuuNavi was updated on October 24, 2026 and 21日で学ぶ歎異抄 on October 7, 2026.

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