Boxing Timer vs Roller BJJ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Boxing Timer
This interval timer is designed for combat sports and HIIT workouts. It offers customizable round timers with authentic sound cues and visual indicators. Track your training progress with detailed statistics and view your timer on your Lock Screen or Dynamic Island.
- Authentic boxing round timer with bell sounds
- Customizable workout profiles for various training styles
- Live Activities and Dynamic Island integration
- Detailed training statistics and progress tracking
- Color-coded visuals for phase indication
- Adjustable round, work, rest, and prepare times
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Your corner. Your rules. Your timer. CornerSense is the boxing timer and interval timer built for fighters. Whether you're hitting the heavy bag, shadow boxing, training Muay Thai, or doing a HIIT workout — CornerSense keeps your rounds tight and your rest on point. PROFESSIONAL BOXING TIMER Authentic boxing round timer with real bell sounds and round voiceovers. Set your round duration from 30 seconds to 5 minutes, choose your rest intervals, and train like a pro. Prepare phase, work phase, rest phase — all timed to perfection with color-coded visuals so you always know where you stand. FULLY CUSTOMIZABLE PROFILES Create unlimited workout timer profiles for every style of training. Boxing fundamentals, HIIT circuits, kickboxing drills, Muay Thai rounds, conditioning work — save each setup and switch between them in a tap. Adjust rounds, work time, rest time, and prepare time with an intuitive rotating dial. LIVE ACTIVITIES & DYNAMIC ISLAND See your boxing timer right on your Lock Screen and Dynamic Island. Never miss a round change even when your phone is across the gym. Your current phase, round number, and countdown — always visible at a glance. DETAILED TRAINING STATS Track every session automatically. See daily, weekly, monthly, and yearly breakdowns of your training. Activity heatmaps, streak tracking, personal bests, peak training hours, and sparkline comparisons — all to keep you accountable and motivated. Privacy Policy: https://www.cornersense.com/privacy Terms of Use: https://www.cornersense.com/terms EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Roller BJJ
This app serves as a journal for your Brazilian Jiu-Jitsu journey, allowing you to meticulously track classes, rounds, and submissions. Gain insights into your progress, identify strengths and weaknesses, and optimize your training regimen.
- Track BJJ classes and learned moves
- Monitor comfort level over time
- Log drilling frequency
- Record mat time and opponent belt analysis
- Identify submission strengths and weaknesses
- Analyze submission success rates
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Roller is an app to server as a journal for your Brazilian Jujitsu journey. There are 3 main things you should track. Classes, Rounds, and Submissions! Tracking them right after class is the best way to get accurate data. Use Classes to keep track of the moves you learned, track your comfort over time, and keep track of how many times you've drilled. Use Rounds to keep track of mat time, know that you're going to do differently against different belts. View rounds over time and see the difference between day one and today. Use Submissions to find your strengths and your weaknesses, find which submission you're caught in the most and which you land the most.
Screenshots
Verdict
The clearest difference is in-app purchases: Roller BJJ at none against Boxing Timer's 3. Boxing Timer's advantage is update cadence (every 2 days vs monthly) and iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads 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. Boxing Timer sells 3 in-app purchases, starting at $3.99 per month. Roller BJJ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Boxing Timer against 5.0 for Roller BJJ. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Boxing Timer ships an update every 2 days, Roller BJJ monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Boxing Timer | Roller BJJ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 54 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Alizandro Lopez | Patrick Dornan |
In-app purchases
Boxing Timer
- CornerSense Pro Monthly$3.991 Month
- CornerSense Pro Yearly$19.991 Year
- CornerSense Pro Lifetime$49.99
Roller BJJ
No in-app purchases









