Comparison

Boxing Round Timer vs IBJJF Rules

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

Head to head
About

Boxing Round Timer

This interval timer is designed for boxing and other exercises, offering a simple interface for easy setup. Customize round numbers, round duration, and interval times to suit your workout needs. It automatically pauses for calls or other apps.

Highlights
  • Customizable rounds (1-15 or infinity)
  • Adjustable round and interval times
  • Automatic pause for calls/other apps
  • Simple and intuitive user interface
  • Suitable for boxing and various exercises
Features
Read full description

A round timer for boxing, kickboxing, martial arts, HIIT and Tabata training. Huge, high-contrast digits let you read the remaining time from across the gym. FEATURES • Your music keeps playing Use it with Apple Music or Spotify running. The gong is mixed over your music instead of interrupting it. • A real gong Recorded from an actual gong, not a synthesised beep. • A warning before the bell A sound marks the last 10 or 30 seconds of a round. You can turn it off. • The screen changes colour during rest Tell work from rest at a glance, without reading the numbers. • The screen stays awake Auto-lock is disabled while the timer runs, so you can leave the phone on the floor. • Vibration Get the cue without sound. Switch it on or off. SETTINGS • Round time: 30 seconds, or 1 to 10 minutes • Rest: 0 seconds, 15 seconds, 30 to 150 seconds, or 3 to 10 minutes • Rounds: 1 to 15, or unlimited TIPS • Wearing gloves? You can tap START with your tongue. • If the sounds are too quiet, check the ringer volume in Settings > Sounds & Haptics. NOTE • The timer does not advance while you are in another app. It resumes where it left off when you come back.

About

IBJJF Rules

Access a comprehensive guide to International Brazilian Jiu Jitsu Federation competition rules. Quickly find details on scoring, fouls, age and weight limits, and fight durations for referees, coaches, and athletes.

Highlights
  • IBJJF rules reference
  • Severe technical fouls
  • Points and scoring
  • Age limits
  • Weight classes
  • Fight durations
Features
Read full description

This app provides a ready reference for referees, coaches and athletes involved in International Brazilian Jiu Jitsu Federation competitions. Details of IBJJF rules including severe technical fouls, points, age limits, weights and fight durations are provided. This app is not endorsed by or affiliated with the International Brazilian Jiu Jitsu Federation.

Screenshots

Boxing Round Timer4 screens
IBJJF Rules4 screens

Verdict

The call

The clearest difference is rating: IBJJF Rules at 4.8 against Boxing Round Timer's 3.2. IBJJF Rules also leads on ads (none vs shown) and review sentiment (89% vs 56%). On price, update cadence, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

IBJJF Rules holds the better App Store score, 4.8 against 3.2. That said, the two scores are not equally well evidenced: IBJJF Rules has 693 ratings behind it against 49, so its average is the more settled of the two. Written reviews point the same way: 56% of Boxing Round Timer's written reviews are positive against 89% of IBJJF Rules's.

UpkeepUpdate frequency

Boxing Round Timer ships an update every 3 months, IBJJF Rules every 5 months. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
Boxing Round Timer versus IBJJF Rules: the parameters behind the verdict, then further details
ParameterBoxing Round TimerIBJJF Rules
PriceFreeFree
Rating3.2 (49 ratings)4.8 (693 ratings) — better
Positive reviews56.4% of reviews89.3% of reviews — better
Number of ratings49693 — better
Update frequencyEvery 3 months — betterEvery 5 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size7 MB4 MB
Age rating4+4+
DeveloperGamagori88smudge.io PTY LTD

Customer experience

Boxing Round Timer

All ratings49 ratings
Positive55.1%
Neutral4.1%
Negative40.8%
Written reviews156 reviews
Positive56.4%
Neutral9.0%
Negative34.6%

IBJJF Rules

All ratings693 ratings
Positive96.1%
Neutral2.5%
Negative1.4%
Written reviews28 reviews
Positive89.3%
Neutral7.1%
Negative3.6%

User reviews

Boxing Round Timer

From 49 App Store ratings

What we love

  • 🚀 Useful app
  • 👍 Simple and easy to use
  • 🔔 Clear bell sound
  • 💡 Good options for rounds, rest time, and time
  • 👍 Flexible for various activities

Room to improve

  • 🐛 Sound issues (no sound, low volume, inconsistent)
  • 🔒 Can't run in background or with screen locked
  • 🔋 Drains battery
  • 🐛 Crashes, freezes, or stops working

IBJJF Rules

From 693 App Store ratings

What we love

  • 👍 Simple and intuitive user interface
  • 🚀 Quick reference guide for rules
  • 📚 Comprehensive IBJJF ruleset information
  • ⚡ Easy navigation and accessibility
  • 🎯 Helpful for competitors, coaches, and referees

Room to improve

  • 📖 Insufficient detailed information
  • 🔄 Outdated rule updates
  • 🌐 Limited language options

Bugs and requests

Boxing Round Timer

Reported bugs

3 issues
  • Sound stopped working
  • Timer stops when phone is locked or app is in background
  • Crashes after iOS 9 update

Requested features

5 requests
  • Add 45 second rest time option
  • Distinguish rest rounds with visual cue
  • Add countdown before first round
  • Allow locking screen without pausing timer
  • Increase volume/customizable sound

IBJJF Rules

Reported bugs

1 issue
  • App functionality issues (non-functional features)

Requested features

4 requests
  • Weight classes and divisions tab
  • Portuguese language support
  • Updated IBJJF 2020+ rules
  • AJP (Asian Jiu-Jitsu Pro) rules inclusion

In-app purchases

None

Boxing Round Timer

No in-app purchases

None

IBJJF Rules

No in-app purchases

Questions

Is Boxing Round Timer free?
Boxing Round Timer is free to download, with no in-app purchases.
Is IBJJF Rules free?
IBJJF Rules is free to download, with no in-app purchases.
Which has better reviews, Boxing Round Timer or IBJJF Rules?
IBJJF Rules is rated higher. Boxing Round Timer averages 3.2 out of 5 from 49 ratings, while IBJJF Rules averages 4.8 from 693 ratings.
Do Boxing Round Timer or IBJJF Rules have ads?
Boxing Round Timer shows ads; IBJJF Rules does not.
Which is updated more often, Boxing Round Timer or IBJJF Rules?
Boxing Round Timer ships an update every 3 months, and IBJJF Rules every 5 months. Most recently, Boxing Round Timer was updated on September 23, 2026 and IBJJF Rules on September 21, 2026.

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