AI Services in Self-Improvement & Coaching

AI assistants that support behavior change and goal achievementFeaturing 11 AI services in total.

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

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

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

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

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

ルーラ

Loora

Loora is an AI English conversation coach app from Loora A.I Ltd. (Israel), listed on the Japanese App Store as "AI英会話 ルーラ". You speak English in free conversation on any topic or in role-plays where you set your own role, the AI's role and the scenario, and get instant feedback on grammar and pronunciation. It offers translation and a dictionary, a new word every day, and a video-chat-style avatar; the app supports 12 languages including Japanese. Free to download; monthly and yearly subscriptions are in-app purchases with a 7-day free trial.

# 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# 教育# 日本語対応

プラクティカ

Praktika

Praktika is an AI English conversation and language practice app from Praktika.ai Company (US). You talk by voice with 3D avatar AI tutors that each have their own personality and accent, in free conversation or role-plays, and mistakes in pronunciation, grammar and vocabulary are corrected for each message with a rephrasing and an explanation. It offers 1,000+ lessons including IELTS/TOEFL, business and travel, pronunciation scores, and explanations switchable to Japanese (the app supports 15 languages including Japanese). Free to download; Praktika Premium is an in-app purchase with a 7-day free trial.

# 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# 教育# 日本語対応

エルサスピーク

ELSA Speak

ELSA Speak is an AI English speaking and pronunciation practice app from ELSA, Corp. (US). It scores the English you speak sound by sound and shows how to fix it, and offers role-play conversations with generative AI plus the Speech Analyzer, which rates a speech on pronunciation, intonation, fluency, grammar and vocabulary and estimates IELTS, TOEFL and TOEIC levels. Free to start; paid plans are ELSA Pro, Premium and Professional (7-day free trial). Its Japanese subsidiary is ELSA Japan G.K.

# 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# 教育# 日本語対応

エーアイノタロットウラナイ

AIのタロット占い

AIのタロット占い (AI Tarot Reading) is a Japanese AI tarot reading service run by inLogix, an independent developer brand. Pick a category such as love, marriage or work and describe your concern, and the AI (OpenAI's GPT series) writes a reading based on the cards drawn and what you asked. Free once a day without signing up, or 3 times a day as a free member. Standard (¥1,000/month) adds AI questions before each reading and a daily morning fortune email; Premium (¥3,000/month) adds "continued reading" that carries over your previous reading, plus Celtic Cross and Horoscope spreads. Both paid plans come with a 3-day free trial.

# エンタメ／ゲーム・遊び# 自己啓発・コーチング# 生成AI（LLM）# 日本語対応

ソロリハ

SoloReha

SoloReha is a conversation practice service for individuals in which AI plays the other party—a customer, boss or interviewer. You can practice about 100 work scenes such as sales meetings, interviews, reporting to your boss, complaint handling and 1-on-1s with team members, and rehearse before the real thing by entering information about someone you will meet tomorrow. After each session you receive feedback by evaluation point, and your growth is tracked as four skills: listening, conveying, moving forward and engaging. It runs in a browser; the free plan allows 3 sessions a month, and the paid plan is ¥480 for the first month, then ¥980/month (tax incl., 30 sessions). Run as a sole proprietorship in Japan; Japanese only (official, as of October 2026).

# 自己啓発・コーチング# 教育# AIチャットボット# セールス# 日本語対応

オープンフェイト

OpenFate

OpenFate is a fortune-telling service that first calculates charts for BaZi (Four Pillars), Zi Wei Dou Shu, Western astrology, Vedic astrology, Human Design and Sukuyo (birth mansion) with fixed calculation rules, and then has AI explain only those calculated results. The AI never rewrites the calculated chart, and the screens show "chart data" and "interpretation" separately. Chart creation and one analysis a day are free, and compatibility readings, six divination tools such as tarot, and an auspicious-day calendar are also available. Japanese interface available. Paid options are Pro (¥4,800/month) and Pro Max (¥8,900/month) subscriptions, or one-time points (from ¥1,200 for 250 points). Operated by OPENFATE AI LLC in the United States.

# エンタメ／ゲーム・遊び# 自己啓発・コーチング# 生成AI（LLM）# 日本語対応

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