Comparison

MENTAL STAR 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

MENTAL STAR

Features
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MENTAL STAR may change your mind and your memory.  Select any title which attracts you, and the relevant words move in various patterns. When you want to switch your mindset, just watch the words go round and round.  Or that you like to memorize a series of words... Or even that you cannot decide what to eat... You can also create your original words set to drive in motions. Number of Japanese titles and a few Chinese titles are preset.

About

21日で学ぶ歎異抄

Features
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「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

MENTAL STAR3 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 MENTAL STAR's 3. MENTAL STAR's advantage is update cadence (every 2 days vs every 4 days). 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. MENTAL STAR sells 3 one-off in-app purchases. 21日で学ぶ歎異抄 asks for nothing beyond the download.

UpkeepUpdate frequency

MENTAL STAR ships an update every 2 days, 21日で学ぶ歎異抄 every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
MENTAL STAR versus 21日で学ぶ歎異抄: the parameters behind the verdict, then further details
ParameterMENTAL STAR21日で学ぶ歎異抄
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 4 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.417.0 — better
Further details — not scored
Size23 MB6 MB
Age rating4+4+
DeveloperSasagawa YoshihiroYoshihide Matsumoto

In-app purchases

3 purchases

MENTAL STAR

One-time3
  • FASTER and SLOWER$5.99
  • NO ADS$9.99
  • MORE WORDS in NEW and EDIT$19.99
None

21日で学ぶ歎異抄

No in-app purchases

Questions

Is MENTAL STAR free?
MENTAL STAR 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 MENTAL STAR or 21日で学ぶ歎異抄 have ads?
Neither MENTAL STAR nor 21日で学ぶ歎異抄 shows ads.
Which is updated more often, MENTAL STAR or 21日で学ぶ歎異抄?
MENTAL STAR ships an update every 2 days, and 21日で学ぶ歎異抄 every 4 days. Most recently, MENTAL STAR was updated on October 30, 2026 and 21日で学ぶ歎異抄 on October 31, 2026.

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