Comparison

Roller BJJ vs The Wolff Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Roller BJJ

Features
Read full description

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.

About

The Wolff Timer

Features
Read full description

The Wolff Timer is a beautifully designed interval timer built for circuit training, HIIT, Tabata, and any workout that needs precise timing. SIMPLE & POWERFUL Set your work time, rest time, rounds, and sets. Tap start. That's it. No complicated menus, no subscriptions, no ads. LIVE ACTIVITY See your timer right on your Lock Screen and Dynamic Island. Always know what's coming next without unlocking your phone. WORKS WITH YOUR MUSIC Audio cues automatically lower your music volume during beeps, then restore it. Your Spotify, Apple Music, or podcasts keep playing. BACKGROUND RELIABLE The timer keeps running accurately even when your phone is locked or you're using other apps. Never miss a transition. PERFECT FOR • Circuit training • HIIT workouts • Tabata protocols • Boxing rounds • CrossFit WODs • Yoga flows • Any interval-based training FEATURES • Customizable work and rest intervals • Multiple sets with rest between sets • Live Activity on Lock Screen & Dynamic Island • Audio cues that respect your music • Clean, distraction-free interface • No account required • No subscription • No ads Built by someone who actually uses it.

Screenshots

Roller BJJ4 screens
The Wolff Timer2 screens

Verdict

The call

Roller BJJ and The Wolff Timer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Roller BJJ ships an update monthly, The Wolff Timer every 3 weeks. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

ScorecardNo meaningful differences
Roller BJJ versus The Wolff Timer: the parameters behind the verdict, then further details
ParameterRoller BJJThe Wolff Timer
PriceFreeFree
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.2
Further details — not scored
Size19 MB3 MB
Age rating4+4+
DeveloperPatrick DornanJimmi Wolff

In-app purchases

None

Roller BJJ

No in-app purchases

None

The Wolff Timer

No in-app purchases

Questions

Is Roller BJJ free?
Roller BJJ is free to download, with no in-app purchases.
Is The Wolff Timer free?
The Wolff Timer is free to download, with no in-app purchases.
Do Roller BJJ or The Wolff Timer have ads?
Neither Roller BJJ nor The Wolff Timer shows ads.
Which is updated more often, Roller BJJ or The Wolff Timer?
Roller BJJ ships an update monthly, and The Wolff Timer every 3 weeks. Most recently, Roller BJJ was updated on October 17, 2026 and The Wolff Timer on October 15, 2026.

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