Comparison

Intervals Pro vs Periodic Timer +

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

Head to head
About

Intervals Pro

Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.

Highlights
  • Highly customizable intervals (time/distance)
  • Spoken interval names and prompts
  • Standalone Apple Watch workouts
  • Workout history with Apple Health
  • Home screen widgets for quick launch
  • Bluetooth heart rate monitor support
  • Siri Shortcuts integration
Features
Read full description

Custom Interval Training at its best for iPhone, Apple Watch and iPad. Featured by Apple and recommended by fitness instructors, personal trainers, marathon runners, and coaches. Let Intervals Pro guide you through any type of interval workout: HIIT, running, strength training, yoga, stretching, circuit training, boxing, MMA, elliptical, rehabilitation, meditation, 7-minute workouts, and many more. FEATURED BY • Apple - App of the Day in 132 Countries • Apple - Workout with Apple Watch, Quick HIIT Workouts • Women's Health Magazine • COACH Magazine • SixColors.com HIGHLIGHTS • Highly Customizable • Home Screen Widgets to quickly launch timers • Spoken interval names and prompts • Customizable alert sounds • Standalone Apple Watch workouts. Leave your iPhone at home! • Workout History using Apple Health data • View an Apple Watch workout live on your iPhone! • Run in the background with the screen locked • Play music or podcasts using the app of your choice • Bluetooth heart rate monitor support for Apple Watch or iPhone • Fill your Activity Rings • Siri Shortcuts • Share timers with friends • Time and Distance Goals • Running Pace and Heart Rate Targets • Auto pause and resume • Send completed workouts to Strava • Confetti! PERSONALIZE YOUR WORKOUT • Customize the Name, Duration, Alert, and Color for each interval • Customize Alert Sounds and Voice Prompts to guide you through your workout • Set a Countdown Alert and vibrations when the interval is about to end • Optional halfway alert • Set target heart rate ranges for each interval • Set time and distance goals FLEXIBLE INTERVAL DURATIONS • Time based (e.g., 45 seconds) • Distance-based (e.g., 0.5 MI or KM) • Count up intervals keep running until your ready for the next interval • Estimated time or distance. Count down time or distance to zero and then continue the interval, counting up until you're ready to move on. THE BEST APPLE WATCH INTERVAL TIMER • Leave your phone at home with our standalone Apple Watch app • Control your music or podcasts on the "Now Playing" screen • View an Apple Watch workout live on your iPhone • Alert Sounds and Voice Prompts to guide you through your workout • Configurable haptic alert countdown that taps you on the wrist when the interval is ending • Track heart rate, calories, distance, and pace • Route tracking for running, walking, and cycling • Workouts contribute to the Apple Watch Activity Rings WORKOUT HISTORY USING APPLE HEALTH • Intervals Pro has the best Apple Health integration of any interval training app • Track heart rate, calories, distance, and pace • Route tracking for running, walking, and cycling • Detailed stats for every interval • All your data is safely stored in Apple Health GREAT FOR RUNNING AND CYCLING • Interval duration can be set to either a specified time or distance • Display current pace, pace for the interval, or pace for the entire run • Configure heart rate ranges per interval • Analyze each interval of your run in the workout history MULTIPLE VOICES AND LANGUAGES • Select the language and voice to use for all spoken alerts. • Spoken alerts are localized to 10 languages. Chinese (simplified), Danish, Dutch, French, German, Italian, Norwegian, Polish, Spanish, and Swedish. Get Intervals Pro today, and your workouts will never be the same! SUBSCRIPTION INFO Intervals Pro is free to download and has a free timer. To create multiple timers and unlock all the features of the app, you may choose between a monthly or yearly auto-renewing subscription option. Upon confirmation of the purchase, payment will be charged to your credit card through your iTunes account. Subscription renews automatically unless canceled at least 24 hours before the end of the subscription period. Subscriptions can be managed and auto-renewal turned off in Account Settings in the App Store app. Privacy Policy and Terms of Service: https://intervalspro.com/privacy-policy.html

About

Periodic Timer +

This app provides a simple, repeating interval timer that works in the background. It offers customizable sounds, vibration, and flexible output modes for various activities like fitness, cooking, and learning. The interface is designed to be minimalist and distraction-free.

Highlights
  • Repeating interval timer
  • Customizable sounds and vibration
  • Works in the background
  • Long intervals up to 99 hours
  • Multiple timer output modes
  • Shake to start functionality
Features
Read full description

Keep track of time without being distracted by the device! Simple and easy timer that repeats at your chosen interval. FEATURES - Many sounds to select + the ability to add custom ones. - Up to 4 pinned and up to 5 recent Quick Start items. - Long intervals - up to 99 hours! - Vibration, if the sound is off. - Works in the background. - 3 timer output modes: intervals, total time, countdown. - You can cancel or pause the timer with help of a notification. - Flexibility and minimalism. - Shake To Start - can be enabled in settings. - Prevent Lockscreen - another useful setting, the screen will not lock, while the timer is running. USE CASES Here is a list of use cases based on the real feedback: Fitness and health: - Stretching - Stationary bicycle (interval training) - On a treadmill - For HIIT - Jogging - Timed medication - Boxing Cooking - While frying potatoes - Roasting steaks - Checking an oven or a grill to prevent burning Learning & science - Foreign language learning - As a lab timer - Periodic data collection - Speech training - Presentation timing Other - Mindfulness - Communication - To have a sense of time flying away :) HELP Q: Why the timer doesn't work in the background? A: You should allow notifications. Q: How to turn off the sound and turn on the vibration? A: On the device, turn the Silent Mode on. (Side Switch) Q: How can I add a custom sound? A: There are four ways. Choose one depending where is the sound file located. * If the sound on your Mac or PC: 1. Connect the device. 2. Open Finder and select the device. 3. Select Files in the menu. There you'll find 'Periodic +' folder. 4. Drug and drop the sound file there. * From Files app on iPhone: 1. Copy the required file. 2. Open Periodic + folder and paste it. * From another app on iPhone (like Mail): 1. Open the app where the file is located. 2. Find and touch Share button (it may have different name, for example Export). 3. In the appearing Share Sheet find the list of apps. If there is no Periodic +, touch More and enable it. 4. Now select Periodic + in the Share dialog and the sound will be imported. * And the most convenient "+" button! 1. Open Sounds tab. 2. Hit the "+" button in the "Folder" section and pick your file. Q: Alert is limited for 5 seconds! A: Go to Settings app, then Periodic + > Notifications > Banner Style > Persistent. Q: How to switch the Timer Output Mode? A: To switch the Output Mode touch the timer display at the top of the screen. Q: What is Shake To Start for? A: Shake To Start setting allows to start/cancel the timer by shaking the device. Thus, you don't touch the screen, what can be useful while cooking, for example. For this mode, in order to work, the app should be open. This app has a free version with limited features. If you still have questions or suggestions, you can visit the support page (https://goo.gl/forms/pggVBcaBxdW85EGE3), the Facebook group (http://www.facebook.com/groups/PeriodicTimer/) or you can email me (periodictimer.sup@gmail.com). If you like the app - please, rate it!

Screenshots

Intervals Pro4 screens
Periodic Timer +4 screens

Verdict

The call

The clearest difference is price: Intervals Pro at Free against Periodic Timer +'s $4.99. Intervals Pro also leads on rating (4.8 vs 3.9) and review sentiment (84% vs 54%). On ads, in-app purchases, 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

Intervals Pro is free to download; Periodic Timer + costs $4.99 up front. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month and Periodic Timer + sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Intervals Pro holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Intervals Pro has 14K ratings behind it against 74, so its average is the more settled of the two. Written reviews point the same way: 84% of Intervals Pro's written reviews are positive against 54% of Periodic Timer +'s.

UpkeepUpdate frequency

Intervals Pro ships an update every 8 days, Periodic Timer + every 4 months. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
Intervals Pro versus Periodic Timer +: the parameters behind the verdict, then further details
ParameterIntervals ProPeriodic Timer +
PriceFree — better$4.99
Rating4.8 (14K ratings) — better3.9 (74 ratings)
Positive reviews84.4% of reviews — better53.6% of reviews
Number of ratings14K — better74
Update frequencyEvery 8 days — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS17.517.0 — better
Further details — not scored
Size69 MB12 MB
Age rating4+4+
DeveloperIntervals, LLCVladimir Kelin

Customer experience

Intervals Pro

All ratings13,612 ratings
Positive95.1%
Neutral1.7%
Negative3.2%
Written reviews1,072 reviews
Positive84.4%
Neutral4.9%
Negative10.7%

Periodic Timer +

All ratings74 ratings
Positive67.6%
Neutral9.5%
Negative23.0%
Written reviews84 reviews
Positive53.6%
Neutral14.3%
Negative32.1%

Bugs and requests

Intervals Pro

Reported bugs

2 issues
  • Workout data not syncing correctly
  • App crashes or freezes on certain devices

Requested features

3 requests
  • More customization options for interval displays
  • Ability to batch delete or manage workout history
  • Integration with more third-party fitness apps

Periodic Timer +

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Intervals Pro

Subscriptions2
  • Monthly Membership7 Days trial$2.991 Month
  • Yearly Membership7 Days trial$19.991 Year
One-time6
  • Generous Tip$0.99
  • Awesome Tip$1.99
  • Massive Tip$4.99
Show 3 more
  • Amazing Tip$9.99
  • Intervals Pro (Legacy)$69.99
  • Lifetime Access$69.99
3 purchases

Periodic Timer +

One-time3
  • Tip a Banana$0.99
  • Tip a Coffee$3.99
  • Donate: Bust the project!$9.99

Questions

Is Intervals Pro free?
Intervals Pro is free to download, with in-app purchases available.
Is Periodic Timer + free?
Periodic Timer + costs $4.99, and also offers in-app purchases.
Which has better reviews, Intervals Pro or Periodic Timer +?
Intervals Pro is rated higher. Intervals Pro averages 4.8 out of 5 from 14K ratings, while Periodic Timer + averages 3.9 from 74 ratings.
Do Intervals Pro or Periodic Timer + have ads?
Neither Intervals Pro nor Periodic Timer + shows ads.
Which is updated more often, Intervals Pro or Periodic Timer +?
Intervals Pro ships an update every 8 days, and Periodic Timer + every 4 months. Most recently, Intervals Pro was updated on September 26, 2026 and Periodic Timer + on September 24, 2026.

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