AI Services in Self-Improvement & Coaching

AI assistants that support behavior change and goal achievementFeaturing 5 AI services in total.

スピークバディー

スピークバディー

An app from appArray, Inc. focused on practicing English conversation with an AI character. Role-play across 1,000+ scenes with an "AI buddy," plus a generative-AI-powered Free Talk feature. It lets you practice speaking anytime and anywhere; 5M+ downloads, App Store 4.6. Offers personalized curricula and a business version, "SpeakBuddy for Business."

# AIチャットボット# 自己啓発・コーチング# 日本語対応

ブレインエフエム

Brain.fm

A music app from the US-based Brain.FM that provides "functional music" optimized by purpose — focus, relaxation, sleep and meditation. It says its patented "Phase-locking Neural Modulation" modulates the sound to support brain states related to focus and sleep. It runs controlled experiments and publishes research in peer-reviewed journals (e.g., Nature Communications) — though effects vary and instant results are not guaranteed. $14.99/mo or $99.99/yr.

# 音楽生成# 自己啓発・コーチング

デュオリンゴ

Duolingo

The world's most-used language-learning app, learning 40+ languages gamified (500M+ learners). From Japanese you can study EN/KO/ZH/FR/ES/DE/IT/PT plus math, music, and chess. The higher Duolingo Max tier adds AI conversation practice (Roleplay, Video Call, Explain My Answer).

# AIチャットボット# 自己啓発・コーチング# 日本語対応

リンゴチャンプ

LingoChamp

An English-learning app from LAIX (Liulishuo) built around a proprietary speech-recognition and pronunciation-scoring AI. It scores the English you speak at the phoneme level and evaluates and corrects pronunciation, vocabulary, grammar and fluency across multiple dimensions. Widely used in China as "Liulishuo," but LAIX was delisted and taken private in the US in 2022, and the international version has shrunk to mainly English (+ Spanish) with stalled updates (availability from Japan and a Japanese UI need to be confirmed).

# AIチャットボット# 自己啓発・コーチング# 日本語対応

スピーク

Speak

Speak is a speaking-focused AI English conversation app from San Francisco-based Speakeasy Labs, backed by the OpenAI Startup Fund. You can practice speaking with an AI tutor without limits and get instant feedback on pronunciation and phrasing. 15M downloads worldwide. After a 7-day free trial, Premium starts at 19,800 yen/year (about 1,650 yen/month). Japanese UI and support available.

# AIチャットボット# 音声認識・音声合成# 自己啓発・コーチング# 日本語対応

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