BJJ Journal vs A Cool Journal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BJJ Journal
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UnderHooked is the all-in-one Brazilian Jiu-Jitsu training companion. Built by black belts and brown belts who got tired of tracking sessions in Notes and losing their technique notebooks. THE BJJ TRAINING JOURNAL THAT MAKES SENSE Log your sessions in seconds. Capture energy, body, mind, and what worked. Watch your stripes stack up. See your mat hours add up over months and years. Your training, finally documented. WHAT'S INSIDE • Session journal — log gi, no-gi, open mat, drilling, competition. Time, intensity, what you worked, how you felt. • Belt progress — visual ladder from white to black, stripe by stripe. See your real progression, not just a static color. • Technique playbook — your personal library of moves, broken down by position. Add videos, notes, the cues that work for you. • Game plan builder — map your A-game from any position. Visualize your hierarchy. • Competition tracker — log every match, debrief what worked and what didn't, build the reps that compound. • Injury vault — track aches, recoveries, rehab notes. Share with your coach (or keep private). • Achievements + streaks — earn marks for consistency, milestones, technical hits. FOR PARENTS Track your kids' BJJ journey. Add each child as a profile, log their attendance, see their belt promotions, save photos for every stripe. Multiple kids? No problem. FOR GYM MEMBERS If your gym is on UnderHooked, you get every Premium feature for free. Tap in at the gym kiosk to log attendance automatically. Get your gym's Move of the Day. See announcements from your coach. Build community with other members. FOR COACHES UnderHooked includes a coach mode that turns into a gym operations dashboard. Track today's attendance, send announcements, promote members in one tap, post videos to the team feed, see retention reports. Built for the way you actually run your academy. THE DIFFERENCE Most BJJ apps are technique libraries with a sign-up gate. UnderHooked is your training record — yours alone, then shared with your gym if you choose. Your sessions are private. Your injuries are private by default. Your data is yours. PREMIUM UNLOCKS • Unlimited journal entries and technique playbook • Advanced analytics and progress charts • Competition tracker with full match history • Game plan builder • Premium themes and card customization Free for affiliated gym members. Otherwise $4.99/month or $39/year (save 35%). NOT ON UNDERHOOKED YET? Tell your coach. We give every member of an affiliated gym Premium at no cost. OSS! Terms of Use: https://underhooked.app/terms Privacy Policy: https://underhooked.app/privacy
A Cool Journal
This app offers a conversational AI coach to help you understand your personality, identify patterns, and achieve your goals through personalized challenges. It provides insights into your thoughts and emotions, with options to journal, chat with the AI, and track your progress. Your data is kept private and encrypted.
- AI-powered journaling and coaching
- Personality and pattern identification
- Personalized challenges for goal achievement
- Mood and stress tracking
- Photo attachments for entries
- Searchable journal history
- Data export in multiple formats
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A Cool Journal is not just a journal. It is your thinking partner, that turns one-way traditional journaling into a rich two-way conversation with an AI coach who provides real insights into what makes you tick, offers challenges to nudge you towards your goals, and makes journaling a much more fun, insightful, and effective activity. IDENTIFY YOUR PERSONALITY TYPE AND PATTERNS Every time you write a journal entry or chat with your coach, A Cool Journal develops and refines a personal profile that catalogs your tendencies and subconscious drivers. In addition to sharing these insights with you, your coach leverages these to identify the questions that most effectively uncover your tendencies as well as fine tune what challenges will drive real change. TURN INSIGHTS INTO ACTION In addition to providing you personal insights, A Cool Journal offers you a library of bite-sized challenges that are hand-picked by your coach to guide your progress on your goals including areas to: Reduce stress Increase confidence More energy Better Focus Healthier Habits Emotional Balance FEATURES Journal Easy journal to capture your thoughts and emotions. Remember the moment by attaching a photo to any entry. Search for any past journal entries by date, keywords, or mood. Coach Chat with a coach about what's on your mind. Ask the coach for insights and suggestions. A Cool Journal's Coach draws on frameworks including Motivational Interviewing, Solution-focused questioning, and Self-Determination Theory Always optional. On days you just want to write, you can easily skip the coach. Challenges Take action with science-based bite-sized challenges. Track progress Skip any if you are not feeling it. No streaks or guilty reminders. Insights Review periodic "Coach Insight Summaries" that break down what the coach has learned about you overall as well as recent trends it has observed. Track your stress levels, energy, and mood over time. Export Download all journal entries and coach conversations for free as PDF, plain text, or Markdown. PRIVACY FIRST Your data is encrypted in transit using TLS 1.2+ and at rest using AES-256. A Cool Journal is a tool for self-reflection and personal growth. It is not therapy and is not a substitute for professional mental health care. It does not diagnose, treat, cure, or prevent any medical condition. If you are in crisis, contact your local emergency services — in the US, call or text 988. Terms of Use: https://acooljournal.com/terms.html Privacy Policy: https://acooljournal.com/privacy.html
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Verdict
BJJ Journal and A Cool Journal are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. BJJ Journal sells 2 in-app purchases, starting at $4.99 per month and A Cool Journal sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | BJJ Journal | A Cool Journal |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 105 MB | 54 MB |
| Age rating | 4+ | 17+ |
| Developer | CHAD TAYLOR STEWART | Eternal Swell LLC |
In-app purchases
BJJ Journal
- UnderHooked Premium$4.991 Month
- UnderHooked Premium$39.001 Year
A Cool Journal
- Coach Monthly7 Days trial$9.991 Month
- Coach Annual7 Days trial$79.991 Year
Questions
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