BRAIN! vs BUSHILOG
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BRAIN!
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BRAIN! is an app that helps you evaluate and track your brain’s condition. When you’re struggling to concentrate or feeling mentally foggy, BRAIN! allows you to quantify your cognitive state. It measures four key indicators: ・Focus (SART) ・Cognitive control (Stroop task) ・Working memory (n-back task) ・Processing speed (TMT) Easy to use — each test takes less than 5 minutes. Your scores are automatically saved and visualized in graphs to track changes over time. Ideal for checking your mental condition before and after work or study, or monitoring the effects of sleep and nutrition. Also great for peak performance and recovery planning. Your brain deserves conditioning, too. Start visualizing your cognitive power with BRAIN!
BUSHILOG
This app helps you build habits and improve self-discipline through daily logging, reflection, and guidance. It aims to enhance willpower, focus, and quality of thought. User data is kept private and is not shared publicly.
- Daily logging of actions and thoughts
- Reflection for self-analysis
- Guidance from a 'Samurai Coach'
- Simple design for habit continuation
- Log editing (Pro plan)
- Unlimited 'Samurai' consultations (Pro plan)
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BUSHIDO LOG は、 日々の行動と内面を記録し、 自分自身を鍛え直すための習慣化・自己成長アプリです。 毎日のログ、振り返り、サムライコーチとの対話を通して、 意志力・集中力・思考の質を高めていきます。 主な機能 ・日々の行動・思考を記録するログ機能 ・振り返りによる自己分析 ・サムライコーチによるガイダンス ・習慣を続けるためのシンプルな設計 Proプラン ・ログの編集機能 ・サムライ相談の無制限利用 本アプリは、モチベーション向上と習慣化を目的としたものであり、 医療・治療・診断を目的としたものではありません。 ユーザーのデータは公開されず、プライバシーは尊重されます。 BUSHIDO LOG is a habit-building app designed to help users improve focus, discipline, and daily routines. This app provides motivational guidance and habit tracking features. It is not intended for medical, therapeutic, or diagnostic use. User data and personal inputs are not shared publicly. 利用規約: https://raw.githubusercontent.com/bushido-log/bushido-log-support/main/terms-of-use.md プライバシーポリシー: https://raw.githubusercontent.com/bushido-log/bushido-log-support/main/privacy-policy.md
Screenshots
Verdict
The clearest difference is in-app purchases: BRAIN! at none against BUSHILOG's 1. BRAIN! also leads on update cadence (daily vs weekly) and iOS requirement (12.0 vs 15.1). On price, ads and device support 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. BUSHILOG sells 1 in-app purchase, starting at $3.99 per month. BRAIN! asks for nothing beyond the download.
BRAIN! ships an update daily, BUSHILOG weekly. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | BRAIN! | BUSHILOG |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Daily — better | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 104 MB | 189 MB |
| Age rating | 4+ | 17+ |
| Developer | TNQ Tech, Co. | HIROYA KOSHIISHI |
In-app purchases
BRAIN!
No in-app purchases
BUSHILOG
- BUSHIDO LOG Pro$3.991 Month









