Comparison

RoundFlow vs Boxing, HIIT, Interval timer

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

Head to head
About

RoundFlow

This training app offers a unique intergalactic-themed HIIT and fighting experience. It features real-time punch power measurement, voice control for hands-free operation, and global leaderboards. All your training data is securely stored in the cloud.

Highlights
  • Real-time punch power detection
  • Voice control for hands-free operation
  • Customizable HIIT timers
  • Global leaderboards
  • Cloud data synchronization
  • Training calendar and log
Features
Read full description

RoundFlow - Round Timer, Punch Power and Training Log RoundFlow is a simple training timer for boxing, MMA, HIIT and other round-based workouts. Set your rounds, work time, rest time and prep time, then start training. The timer is designed to be clear at a glance, so you can stay focused during each round. With Apple Watch support, RoundFlow can measure punch power and speed, save your best records, and show your punch history. You can also compare your results on the global leaderboard. When your hands are busy, voice control lets you start, pause, resume or reset the timer without touching your phone. Key Features Round Timer - Custom rounds, work time, rest time and prep time - Quick presets for Boxing, MMA and HIIT - Save and reuse your own training presets - Clear round status and animated progress display - Landscape clock view for easier viewing during training Punch Power - Measure punch power and speed - Apple Watch preferred, iPhone fallback when needed - Visual power dial with sound and vibration feedback - Save punch history and personal bests - Global leaderboard for punch records Training Records - Training history with workout count, rounds and total time - Duration and calorie charts - Training calendar with daily and yearly views - Training log with notes, mood and workout details - Import recent Apple Watch workout calorie records Hands-Free Training - Voice control for timer commands - Round voice prompts - Selectable bell sounds - Motion sound effects for a more active training feel Data and Account - Account login for cloud sync - Local backup and restore - Plus upgrade for extra tools such as ad removal, backup/restore, more themes, custom categories and record sharing Languages RoundFlow supports English, Chinese, Japanese and Korean. RoundFlow is built for fighters, athletes and fitness users who want a clean round timer, useful training records and a simple way to track punch power.

About

Boxing, HIIT, Interval timer

Features
Read full description

Boxing, HIIT, Interval timer - Train Harder, Smarter, Longer Take your training to the next level with the ultimate timer - designed for athletes, fighters, and fitness enthusiasts who want precision and performance in every round. Whether you’re in the gym, at home, or outdoors, this timer helps you stay focused and get the most out of every workout. Create custom intervals that match your training style - from Tabata sessions to classic boxing rounds. Adjust workout, rest, and cooldown times easily, and save presets for your favorite routines. Perfect for any level of intensity, whether you’re just starting or preparing for your next fight. The clean, easy-to-read interface lets you keep your eyes on your training, not your phone. Audible alerts ensure you never miss a beat, even when you’re deep in your workout. It’s built for the gym but flexible enough for Tabata, circuit training, or endurance workouts. Stay motivated, track your progress, and transform every session into a powerful, structured training experience. Download timer today - your new essential workout partner in the gym and beyond.

Screenshots

RoundFlow4 screens
Boxing, HIIT, Interval timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Boxing, HIIT, Interval timer at none against RoundFlow's 1. RoundFlow's advantage is update cadence (every 5 days vs every 3 months). On price, ads, device support and iOS requirement 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. RoundFlow sells 1 one-off in-app purchase. Boxing, HIIT, Interval timer asks for nothing beyond the download.

UpkeepUpdate frequency

RoundFlow ships an update every 5 days, Boxing, HIIT, Interval timer every 3 months. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 8 level
RoundFlow versus Boxing, HIIT, Interval timer: the parameters behind the verdict, then further details
ParameterRoundFlowBoxing, HIIT, Interval timer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better16.6
Further details — not scored
Size87 MB12 MB
Age rating4+4+
Developergenghong XieMykhaylo Zhylevych

In-app purchases

1 purchases

RoundFlow

One-time1
  • Upgrade plus$5.99
None

Boxing, HIIT, Interval timer

No in-app purchases

Questions

Is RoundFlow free?
RoundFlow is free to download, with in-app purchases available.
Is Boxing, HIIT, Interval timer free?
Boxing, HIIT, Interval timer is free to download, with no in-app purchases.
Do RoundFlow or Boxing, HIIT, Interval timer have ads?
Neither RoundFlow nor Boxing, HIIT, Interval timer shows ads.
Which is updated more often, RoundFlow or Boxing, HIIT, Interval timer?
RoundFlow ships an update every 5 days, and Boxing, HIIT, Interval timer every 3 months. Most recently, RoundFlow was updated on September 25, 2026 and Boxing, HIIT, Interval timer on September 17, 2026.

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