Comparison

Timeline vs Interval Timer

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

Head to head
About

Timeline

This app provides a highly customizable interval timer for various activities, including fitness, exercise, and productivity. Create and manage timer sequences with intuitive gestures, utilize ready-made templates, and share your routines with others. Enjoy spoken prompts and motivational messages to stay on track.

Highlights
  • Flexible interval timer design
  • Intuitive gesture-based timer creation
  • Ready-made schemes and templates
  • Manage and arrange timers by category
  • Share timers with friends or clients
  • Spoken timers and motivational messages
  • Continuous alarm option
Features
Read full description

Timeline is the most flexible interval timer. Ideal for fitness, running, exercise, productivity and more. It gives you intuitive, powerful and practical controls to run timer sequences or to create your own routines. • FLEXIBLE BY DESIGN Whether it is for sports such as fitness, running, cycling, high-intensity training, tabata, circuit training, yoga and more. Or if you want to time your daily routines, stay productive, stay focused or need to clock your tasks. Timeline has got you covered. • CREATE TIMERS USING INTUITIVE GESTURES You can create your own sequences of timers quickly using intuitive gestures. There are no difficult menus and options to go through. Just swipe, pinch, pan, tap and group to build any sequence you can imagine. What you see is what you get. You can always edit your timers, even after you have started playing them. • READY-TO-USE SCHEMES AND TEMPLATES Start right away with ready-made schemes and templates. Get into running with 56 weeks worth of training schemes to run from 0 to 5 km up to a full marathon. Use or create your own templates as the starting point for your custom timers. You can import ready-made timers, build your own on your computer or open them directly from websites. • MANAGE AND ARRANGE YOUR WAY Whether you want to arrange your timers per category, or want to separate your clients from your personal timers. Timeline gives you the freedom to manage and arrange your timers the way you want. Creating, moving or copying timers and folders are all only a few taps away. • SHARE WITH FRIENDS OR CLIENTS Share any number of timers and folders at once with your friends or clients. You can also publish them on your website so your audience can directly open them in the Timeline app. • SPOKEN TIMERS AND MOTIVATION IN YOUR LANGUAGE Have your timers and countdown spoken out loud in your own language. You don't have to look at your screen and can keep your device locked or in your pocket. Spoken motivational messages support you through your extensive workouts and sessions. • CONTINUOUS ALARM OPTION TO NEVER MISS A MOMENT Sometimes it is critical to know the end of your timers. You don't need to stay with your device all the time. Just turn on the continuous alarm. It works like your alarm clock and will pause your timer until you have confirmed the alarm. • PRACTICAL FEATURES YOU WILL LOVE Timeline is a premium-quality interval timer app. You can play your own music through Timeline or via your preferred music app. Timeline works fully in the background and can alert you with sounds, vibrations and speech. Run it in the foreground and it will keep your screen turned on if you want. Resume timers where you previously left off. Choose from different color themes. Get personal assistance from the developer. Plus more practical features to ensure you'll enjoy using Timeline. • UPGRADE TO TIMELINE PRO You can use all main features of Timeline completely free. However, to create more than 5 timelines or to share your timers, please upgrade to Timeline Pro with a one-time purchase. You thereby also support an individual developer. Timeline is designed to be your flexible interval training timer. Download Timeline now and start achieving your personal goals.

About

Interval Timer

This app is a versatile interval timer designed for various training styles like Tabata and HIIT. It offers customizable workout parameters, voice guidance, and music ducking for an enhanced training experience. Save your custom workouts and track your progress.

Highlights
  • Customizable interval settings
  • Voice assistant with text-to-speech
  • Music ducking for audio integration
  • Save custom workouts
  • Tabata, Rounds, Stopwatch modes
  • Apple Health integration
Features
Read full description

Special timer for interval training. This Interval Timer offers: • Very intuitive interface. After installing this timer you need to press one button to start a tabata workout with classic settings. • Ability to set up prepare, work, rest, rest between sets, cool down time, number of cycles and sets. • Intervals can be configured individually. With this interval training timer you can create any interval workout with any sequence of intervals. • Voice assistant with text-to-speech. • Add descriptions to intervals that will be displayed on the timer screen and will be voiced. • Bright and nice colors. • Ability to lower the volume in your music player while playing the timer sounds (ducking). • List of your saved workouts. • NEW! Quick workout - setup your workout with fast and ease. The opportunity to display mode: - Tabata Protocol. - Rounds. - Stopwatch. - Intervals. Tabata is a form of high-intensity interval training (HIIT): • Workout hard for 20 seconds • Rest for 10 seconds • Complete 8 rounds It's time to train, good luck! Application supports Apple Health to track activity during workout. You can download the app for free. Further use requires a subscription. At our discretion, we may decide to offer you a free trial per the terms displayed in the app. Please note that: When opting for a subscription, you pay the fixed price for your country, which is displayed in the app. Payment will be charged to your Apple ID Account upon confirmation of purchase. Subscription automatically renews and free trial automatically converts into subscription unless auto-renewal is turned off at least 24 hours before the end of the current period. Your Account will be charged for renewal within 24 hours prior to the end of the current subscription period. You can manage your subscriptions and turn off auto-renewal by going to Account Settings after purchase. When canceling a subscription or a free trial, your subscription/free trial will stay active until the end of the current period. Auto-renewal will be disabled, but the current subscription will not be refunded. Terms of Use and Privacy Policy: https://docs.google.com/document/d/1FMzBsd_mSO69xuzkpOKljPPtxRMWMTzt2iGs6wJIhik

Screenshots

Timeline4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is monetization model: Timeline at free against Interval Timer's subscription. Timeline also leads on review sentiment (100% vs 67%) and device support (3 vs 1). Interval Timer's advantage is update cadence (every 4 weeks vs every 22 months) and ratings volume (3.5K vs 9). On price, rating, ads and in-app purchases 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. Timeline sells 1 one-off in-app purchase and Interval Timer sells 12 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Timeline against 4.7 for Interval Timer. That said, the two scores are not equally well evidenced: Interval Timer has 3.5K ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 100% of Timeline's written reviews are positive against 67% of Interval Timer's.

UpkeepUpdate frequency

Timeline ships an update every 22 months, Interval Timer every 4 weeks. The most recent releases landed on September 22, 2026 and October 8, 2026 respectively.

Scorecard6 real differences · 4 level
Timeline versus Interval Timer: the parameters behind the verdict, then further details
ParameterTimelineInterval Timer
PriceFreeFree
Rating4.6 (9 ratings)4.7 (3.5K ratings) — better
Positive reviews100.0% of reviews — better66.5% of reviews
Number of ratings93.5K — better
Update frequencyEvery 22 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size9 MB243 MB
Age rating4+4+
DeveloperFly Your Vision B.V.HIIT Apps Sp. z o.o.

Customer experience

Timeline

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Interval Timer

All ratings3,466 ratings
Positive92.1%
Neutral2.3%
Negative5.6%
Written reviews442 reviews
Positive66.5%
Neutral7.9%
Negative25.6%

Bugs and requests

Timeline

Not enough reviews yet to summarise bugs or requests.

Interval Timer

Reported bugs

3 issues
  • Workouts disappearing
  • App crashes and freezes
  • Timing issues with intervals

Requested features

4 requests
  • Apple Watch integration
  • More customization options
  • Additional audio cues and prompts
  • Improved workout tracking and history

In-app purchases

1 purchases

Timeline

One-time1
  • Timeline Interval Timer Pro$4.99
12 purchases

Interval Timer

Subscriptions8
  • Intervals: monthly membership7 Days trial$1.991 Month
  • Intervals: membership7 Days trial$3.993 Months
  • Intervals: monthly membership$4.991 Month
Show 5 more
  • Intervals: yearly membership$6.991 Year
  • Intervals: yearly membership1 Year trial$9.991 Year
  • Intervals: yearly membership7 Days trial$19.991 Year
  • Intervals: yearly membership7 Days trial$24.991 Year
  • Intervals: membership7 Days trial$24.991 Year
One-time4
  • Intervals | PRO version$14.99
  • Intervals | Membership$14.99
  • Intervals | Membership$34.99
Show 1 more
  • Intervals | Membership$39.99

Questions

Is Timeline free?
Timeline is free to download, with in-app purchases available.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Which has better reviews, Timeline or Interval Timer?
Interval Timer is rated higher. Timeline averages 4.6 out of 5 from 9 ratings, while Interval Timer averages 4.7 from 3.5K ratings.
Do Timeline or Interval Timer have ads?
Neither Timeline nor Interval Timer shows ads.
Which is updated more often, Timeline or Interval Timer?
Timeline ships an update every 22 months, and Interval Timer every 4 weeks. Most recently, Timeline was updated on September 22, 2026 and Interval Timer on October 8, 2026.

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