Comparison

Simple Interval Timer vs Roll Timer

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

Head to head
About

Simple Interval Timer

Features
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Flexy Timer – The Ultimate Minimalist Workout Timer Flexy Timer is a sleek, intuitive workout timer designed for those who value focus and simplicity. With a clean, distraction-free interface, it helps you stay in the zone and get the most out of every workout. Perfect for HIIT, Tabata, CrossFit (AMRAP/EMOM/WOD), Boxing, Circuit Training, Sprint Intervals, Yoga, and Kettlebell Workouts. Flexy is the perfect tool to help you structure your time and stay on track—whether you're working out, meditating, studying, or managing your daily routines. Here’s how Flexy can support you: -Workouts & Exercise: Easily time your gym sessions, interval runs, CrossFit, HIIT, and Tabata workouts. -Yoga & Meditation: Set calming intervals to guide your yoga practice or meditation sessions with precision. -Focus & Productivity: Use Flexy as a Pomodoro timer to stay productive while studying, reading, or working. -Custom Routines: Create and save personalized interval timers for any activity—whether it's fitness, focus, or relaxation. No matter your goal, Flexy Timer makes timing simple, flexible, and effective. Train smarter. Stay focused. Let Flexy Timer be your easy-to-use workout companion! Flexy Timer Premium Features (In App Purchase): * Quick Start – Get moving in seconds. * Custom Timers – Personalize intervals to match your training. * Curated Music – Stay motivated with handpicked soundtracks. * Workout Log – Track and analyze your progress. In-App Purchase: ——All features of Simple Interval Timer are available for free during the first three uses. ——After that, a monthly or yearly subscription is required to continue using the timers. Privacy Policy: https://pdfhost.io/v/72mty7BYHd_Privacy_Policy_-_Simple_Interval_Timer__Flexy Terms of Use: https://pdfhost.io/v/3543sYv6Cr_Terms_of_Use_-_SEAD_Fitness

About

Roll Timer

Features
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A round and interval timer built for the mat. "6 rounds of 5:00, 1:00 rest" takes two taps, the countdown is readable from three metres away, and the timer keeps running when you lock the phone and drop it in your bag. ONE TAP TO START • Ready on first launch: Sparring 6 × 5:00, Drilling 8 × 3:00, Circuit 3 × 5 × 0:40. • Tap ▶ on any timer for a 3-2-1 countdown. Your last-used timer waits at the top. READ IT FROM ACROSS THE MAT • Huge digits, with nothing competing for the screen. • The whole screen floods with the colour of the phase: lime for work, blue for rest, violet for the long rest between circuits. You can tell the phase without reading anything. • The next interval is always shown, so you know what's coming. ROUNDS, RESTS AND CIRCUITS • Rounds from 0:05 to 60:00, rests up to 30:00, up to 20 circuits of 50 rounds. • Every round is the same by default. Switch to Custom to change any single round or rest: a longer last round, a shorter rest, an extra round at the end. • The total session time is shown before you start. A SOUND FOR EVERY CUE • 38 original sounds in six sets: classic gym, loud & long, coach voice, calm, dynamic and fun. • Pick a sound and volume for each moment: round start, rest, long rest, halfway, last 10 seconds, the 3-2-1 countdown and workout done. • Halfway and Last 10 seconds can be switched on for each timer. • Long, loud defaults you hear in the middle of a roll: the bell means go, the train horn means rest, the ship horn means long rest, the horn means done. • A 3-2-1 before the end of every round and rest. • Music from another app pauses for each cue and carries on right after (with the iPhone locked, it dips instead). • Optional voice callouts ("Round 3", "Rest", "Ten seconds") and haptics. KEEPS RUNNING ON THE LOCK SCREEN • Lock the phone or switch apps. The session keeps time and keeps playing its cues. • Live Activity on the Lock Screen and in the Dynamic Island, with Pause, Resume and Skip. • Pause, skip a round, or keep going exactly where you left off. ON YOUR WRIST • Roll Timer for Apple Watch shows the running timer full screen in the colour of the phase, with Pause, Skip and End. • Start any of your timers from the watch. The iPhone plays the cues out loud, so the whole mat hears them. • A tap on the wrist at every round, every rest and the end of the workout while the app is open on the watch. • With iOS 18 and watchOS 11, the Live Activity also appears in the Smart Stack on your Apple Watch. MADE FOR THE GYM • The screen stays on and bright during a session, at the brightness you choose. • Works offline. No account, no ads, no tracking. • In 9 languages: English, Português, Español, Français, Deutsch, Italiano, Polski, Русский and 日本語. For Brazilian jiu-jitsu, grappling, wrestling, judo, sambo, MMA, boxing, kickboxing, Muay Thai, HIIT, Tabata, circuit training and open mat.

Screenshots

Simple Interval Timer4 screens
Roll Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Roll Timer at none against Simple Interval Timer's 2. Roll Timer also leads on update cadence (every 2 days vs weekly). 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. Simple Interval Timer sells 2 in-app purchases, starting at $0.99 per month. Roll Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Interval Timer ships an update weekly, Roll Timer every 2 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 4 level
Simple Interval Timer versus Roll Timer: the parameters behind the verdict, then further details
ParameterSimple Interval TimerRoll Timer
PriceFreeFree
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.617.0 — better
Further details — not scored
Size23 MB20 MB
Age rating4+4+
Developer阳 童Grigoriy Shimichev

In-app purchases

2 purchases

Simple Interval Timer

Subscriptions2
  • Monthly Premium3 Days trial$0.991 Month
  • Yearly Premium3 Days trial$4.991 Year
None

Roll Timer

No in-app purchases

Questions

Is Simple Interval Timer free?
Simple Interval Timer is free to download, with in-app purchases available.
Is Roll Timer free?
Roll Timer is free to download, with no in-app purchases.
Do Simple Interval Timer or Roll Timer have ads?
Neither Simple Interval Timer nor Roll Timer shows ads.
Which is updated more often, Simple Interval Timer or Roll Timer?
Simple Interval Timer ships an update weekly, and Roll Timer every 2 days. Most recently, Simple Interval Timer was updated on November 8, 2026 and Roll Timer on November 10, 2026.

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