Comparison

Round Timer Pro vs C24 CARDIO

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

Head to head
About

Round Timer Pro

This app provides a highly customizable round timer for combat sports and interval training. It features a unique reaction training mode to simulate unpredictable fight scenarios and allows for precise control over workout structure and signals.

Highlights
  • Customizable rounds
  • Reaction Training Mode
  • Intra-round signals
  • Authentic sound cues
  • Visual cues and color indicators
  • Split rounds into segments
Features
Read full description

TRAIN SMARTER. FIGHT FASTER. REACT BETTER. Meet Boxing Round Timer Pro, the most powerful and customizable round timer for boxing, MMA, kickboxing, Muay Thai, or any high-intensity interval training. Whether you are a fighter sharpening your reactions, a coach managing class sessions, or an athlete crushing HIIT and Tabata, this app adapts to your style. It is more than a simple boxing bell, it is your intelligent corner partner. WHY THIS TIMER STANDS OUT Unlike any other boxing timer, Boxing Round Timer Pro introduces an exclusive Reaction Training Mode designed to simulate real fight unpredictability. Set random action cues in custom time ranges and get sound signals to perform specific combos, defensive moves, or explosive exercises. Perfect for developing fight IQ, reflexes, and real-world reaction speed. You can also split rounds into equal segments. For example, play a signal every 30 seconds during a 3-minute round. Ideal for pacing drills, changing intensity, or rotating exercises seamlessly without losing rhythm. FULLY CUSTOMIZABLE FOR EVERY TRAINING STYLE - Adjustable rounds. Set the structure that fits your routine. - Authentic boxing bells and claps. Realistic sounds that mirror professional gyms. - Visual cues and color indicators. Instantly see when to fight, rest, or get ready. - Intra-round signals. Add alerts within each round to mix up exercises or combos. - Reaction Training Mode. Create random action cues to simulate real-fight scenarios. - Simple, clean interface. Go from idea to action in seconds. - Optimized for all devices. Works on phones, tablets, and smart displays. PERFECT FOR ALL TYPES OF WORKOUTS - Boxing, Kickboxing, MMA, Muay Thai - HIIT, Tabata, CrossFit - Circuit, Cardio, or Strength workouts - Gym and home fitness - Reaction, coordination, and reflex drills SIMPLE. RELIABLE. FREE. No subscriptions. No ads. No limits. Boxing Round Timer Pro delivers professional-grade performance with zero distractions. Configure your workout, hit start, and let the timer handle the rest while you focus on your performance. TRAIN ANYTIME, ANYWHERE. From beginners learning to pace their rounds to advanced fighters mastering timing and reaction, this app delivers precision, motivation, and control in every session. You will always know when to strike, when to rest, and when to push beyond your limits. Download Boxing Round Timer Pro and experience the evolution of fight training. React faster. Move smarter. Dominate every round. Free - No ads - Reaction training - Fully customizable - For all combat sports

About

C24 CARDIO

Features
Read full description

C24 Cardio is a simple combat-conditioning timer built for focused training. Set your rounds, choose your work duration and rest period, then get to work. Clear audio cues keep you focused on the session instead of watching the clock. BUILT FOR THE ROUND • Customizable number of rounds • Flexible round durations • Adjustable rest between rounds • Clear work, rest, and round transitions • Loud workout audio cues • Pause and resume when needed • Simple, distraction-free workout screen TRACK YOUR TRAINING Every completed workout is saved locally on your device. See your training across today, this week, this month, and the year, along with your current streak, best days, records, and workout history. KEEP SHOWING UP C24 Cardio is designed to keep things simple: set your session, start the round, and put in the work. No account required. No complicated setup. Just your rounds, your timer, and your training.

Screenshots

Round Timer Pro4 screens
C24 CARDIO4 screens

Verdict

The call

The clearest difference is iOS requirement: Round Timer Pro at 13.4 against C24 CARDIO's 15.0. On price, ads, 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.

Scorecard1 real difference · 9 level
Round Timer Pro versus C24 CARDIO: the parameters behind the verdict, then further details
ParameterRound Timer ProC24 CARDIO
PriceFreeFree
Rating5.0 (223 ratings) — better—
Positive reviews97.2% of reviews—
Number of ratings223 — better—
Update frequencyEvery 6 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.4 — better15.0
Further details — not scored
Size24 MB4 MB
Age rating4+4+
DeveloperSolid Solutions OUShaik Mahammad Nabi Azad

Bugs and requests

Round Timer Pro

Requested features

1 request
  • Ability to save workout settings

C24 CARDIO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Round Timer Pro

No in-app purchases

None

C24 CARDIO

No in-app purchases

Questions

Is Round Timer Pro free?
Round Timer Pro is free to download, with no in-app purchases.
Is C24 CARDIO free?
C24 CARDIO is free to download, with no in-app purchases.
Do Round Timer Pro or C24 CARDIO have ads?
Neither Round Timer Pro nor C24 CARDIO shows ads.

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