BJJ App comparison — honest

BJJBuddy, BJJ Notes, MatTime, BJJ App. Strengths and weaknesses side by side. Where we lose, we say so.

Which to pick

+ Good at: Wiki integration (1,500+ pages), 3 languages (EN/JA/PT), web access (no install), indie/no-VC transparency
− Not so good: 1 real user (me — that's the honest truth), no native mobile app yet, no social/leaderboard features yet, AI features less mature than BJJ Notes
Pick if: You want technique reference + tracker in one place, you read JA or PT, or you don't want yet another app install

Feature	BJJ App	BJJBuddy	BJJ Notes	MatTime
Free tier	✅ Free forever (core)	✅ Fully free	✅ Free	✅ Free + Premium
Paid tier	Pro $9.99/mo (analytics + AI coach)	—	—	Premium (no public price)
Wiki integration	✅ 1,500+ pages on every technique	❌	Searchable knowledge base only	❌
Languages	✅ EN / JA / PT	EN only	EN only	EN only
Platform	Web / PWA (no install)	iOS / Android native	iOS / Android native	Native (mobile)
AI features	Pro tier: AI coach feedback	❌	✅ AI insights / pattern detection	❌
Heatmap / streak	✅ 365-day Duolingo-style