Comparison

HIIT Interval Timer vs Roundwork

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

Head to head
About

HIIT Interval Timer

This app provides a flexible interval timer for high-intensity training. Customize workout cycles, rest periods, and receive color, voice, and sound navigation cues. It runs in the background and offers a built-in music player.

Highlights
  • Customizable interval and rest times
  • Background and screen-locked operation
  • Color, voice, and sound navigation
  • Built-in music player
  • Create and manage custom timers
  • Multiple themes
Features
Read full description

Run in foreground, background and screen locked, the HIIT app allows you to specify an overall time as well as program High/Low intensity interval and rest time between cycles. + Flexible and Advanced Timer + Clean, simple and easy to use (There is no learning curve here) + Create your own timers with some taps + Create fully customized timers with a complex of cycles and sets, + Run in the background, foreground, screen locked + Color, Voice and Sound Navigations (Customizable) + Built in Music Player (in sync with iOS Music Player) + Multiple themes to select + Manage your timers and data of training (you can even delete unwanted timer or junk data) + Create your own alarms right in the app + Work on iPhone, iPad and iPod + And a lot more features will be added in over time. How to use this app: There is no user manual here! -> Download it -> tap on play button -> you will see -> It’s super easy

About

Roundwork

Features
Read full description

Roundwork is a clean, focused interval timer for HIIT, Tabata, EMOM and circuit training. Set up a workout with four values: lead-in, work time, rest time and number of rounds. The timer guides you through each phase with clear on-screen colors and audio cues, so you always know whether to push or recover. FEATURES • Four-parameter setup: lead-in, work, rest, rounds • Five ready-made presets — Classic, Tabata, EMOM, Boxing, Sprint — plus your own • Clear phase colors and audio signals for every transition • Live heart rate during your workout • Standalone Apple Watch app: start a preset on your wrist, no iPhone needed • Haptics you feel at every change, with a 3-2-1 countdown • Complication for your watch face and the Smart Stack • Saves your session to Apple Health as a workout • Week overview with last week to compare — tap a day to see what you trained • Choose from a wide range of activity types • Live Activity on the Lock Screen and Dynamic Island • Simple, distraction-free design No accounts, no clutter. Open the app, set your intervals and train.

Screenshots

HIIT Interval Timer4 screens
Roundwork4 screens

Verdict

The call

The clearest difference is in-app purchases: Roundwork at none against HIIT Interval Timer's 1. Roundwork also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 5 months). HIIT Interval Timer's advantage is iOS requirement (15.6 vs 26.0). On price 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. HIIT Interval Timer sells 1 one-off in-app purchase. Roundwork asks for nothing beyond the download.

UpkeepUpdate frequency

HIIT Interval Timer ships an update every 5 months, Roundwork every 2 weeks. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
HIIT Interval Timer versus Roundwork: the parameters behind the verdict, then further details
ParameterHIIT Interval TimerRoundwork
PriceFreeFree
Rating4.2 (102 ratings) — better—
Positive reviews52.6% of reviews—
Number of ratings102 — better—
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.6 — better26.0
Further details — not scored
Size10 MB4 MB
Age rating4+4+
DeveloperThang NguyenDominik Meierhofer

In-app purchases

1 purchases

HIIT Interval Timer

One-time1
  • Pro Upgrade$4.99
None

Roundwork

No in-app purchases

Questions

Is HIIT Interval Timer free?
HIIT Interval Timer is free to download, with in-app purchases available.
Is Roundwork free?
Roundwork is free to download, with no in-app purchases.
Do HIIT Interval Timer or Roundwork have ads?
HIIT Interval Timer shows ads; Roundwork does not.
Which is updated more often, HIIT Interval Timer or Roundwork?
HIIT Interval Timer ships an update every 5 months, and Roundwork every 2 weeks. Most recently, HIIT Interval Timer was updated on October 8, 2026 and Roundwork on October 10, 2026.

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