Comparison

1Timer 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

1Timer

This app provides highly customizable voice timers for various activities like workouts, habits, and routines. Set per-second countdowns, interval reminders, and choose from multiple languages and voices for announcements. It offers quick access via widgets and works offline with VoiceOver support.

Highlights
  • Voice countdown announcements
  • Customizable reminder intervals
  • Multiple language and voice options
  • Chaining timers together
  • Widget for quick access
  • Works with locked screen
  • VoiceOver support
Features
Read full description

1Timer offers timers that announces time remaining in voice. The content and timing of voice reminders are extremely customizable. USEFUL You will be pleasantly surprised by how useful the app is in many scenarios. Here is an incomplete list of possible use cases. • Workout -- we have you covered whether it simple workout or complex workout routines. • Habits -- shape up some time-bounded habits. • Kids -- give your kids a disciplinary countdown. • Be on time -- get reminders before it's too late. • Routines -- perform daily time-bound routines. • Exams/tests -- be informed before the time's up. • And many more... CUSTOMIZABLE • You can have a per-second voice countdown for the last 15 seconds. • You can have a timer that reminds you every 5 seconds for the last minute, and every minute otherwise. • The combinations of configurations are countless. • You can choose the reminder language from 30+ languages. • You can choose the reminder speed. • You can even choose from different voices. • You can also customize what the timer reminders are. • You can set up advanced timers, each with different configurations. • You can even chain timers together to build a powerful reminder system that you can find nowhere else. THOUGHTFUL • The app provides single-tap access to timers, without any setup. • The app is very small, so it doesn't waste your precious storage space. • The app is super fast, so it's available the second you need it. • The app provides a widget for even easier access. • The app fully works even if the screen is locked. • The app fully support VoiceOver. POPULAR Just read the reviews to see how much our users love the app!

About

Interval Timer

This versatile timer app allows users to create custom sequences for various activities, from breathwork and workouts to focus sessions and cooking. It offers AI-powered voice guidance, iCloud synchronization across Apple devices, and a minimalist black-and-white interface.

Highlights
  • Customizable timer chains
  • Breathwork flow builder
  • Intermittent fasting timers
  • Workout routine creator
  • Focus and Pomodoro timers
  • AI voice guidance
  • iCloud sync across devices
Features
Read full description

"This isn't just another timer app. This is your favorite timer app's favorite timer app" - Cody Lee, iDownloadBlog. "What I like most about TimeWave, though, is its clean, black-and-white design" - John Voorhees, MacStories. "Liquid Glass really comes to life on its widgets" - Michael Burkhardt, 9to5Mac. "Best iPhone Apps of July, 2021" - Beau Hamilton, Slashdot. WHAT CAN YOU DO WITH TIMEWAVE? TimeWave allows you to combine your breathwork app, your workout app, your focus timer, cooking timer and much more into one single app. You can use TimeWave for: • Breathwork — build custom breathing flows like 4-7-8 Breathing to lower blood pressure, Physiological Sigh to reduce stress and anxiety, Wim Hof Breathing to increase alertness, Box Breathing to relax and much more. • Intermittent Fasting — Create your own intermittent fasting using various splits like 16:8, 12:12, 5:2, etc. You can create timer-splits for each day or for the entire week. • Workout Routines — create your own workouts by chaining excercise and break durations. You can make Tabata/HIIT workouts or even yoga routines. • 20-20-20 Rule — create a timewave to follow the 20-20-20 rule (Every 20 minutes look at something 20 ft away for 20 seconds) while working with screens to prevent eye-strain. • Focus Timers — create pomodoro timers or any kind of work-break timewaves. You are not restricted to 25 minute session, you can create any sequence that suits your preferences. • Cooking — ever had to keep resetting your timers after each whistle? well, now you wont have to. Just create a timewave for each recipe. • Everything — anything else that involves timed sequential tasks. SPECIAL FEATURES: • TimeWave A.I — TimeWave will tell you what has to be done for how long while the Calibre is running. For eg: "Breathe In For 4 Seconds" so you don't have to look at the screen. • iCloud Sync — Available on Mac, iPad, iPhone and Apple Watch and keeps everything up-to to date on all your devices with iCloud Sync. • Black & White UI — B&W is a lot of colours. If you are anything like us, you'll love our ironically modern black and white UI. MORE: • Personal touch — a hand-crafted Indie app. If you have any questions or feedback, you can reach out to us at timewave.team@gmail.com Privacy Policy: https://timewaveapp.com/privacy Terms of Use: https://timewaveapp.com/terms

Screenshots

1Timer4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is ads: Interval Timer at none against 1Timer's shown. 1Timer's advantage is ratings volume (1.2K vs 25) and iOS requirement (15.0 vs 26.0). On price, rating, review sentiment and update cadence 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. 1Timer sells 5 in-app purchases, starting at $0.99 per 7 days and Interval Timer sells 3 in-app purchases, starting at $4.99 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 — 4.7 for 1Timer against 4.6 for Interval Timer. That said, the two scores are not equally well evidenced: 1Timer has 1.2K ratings behind it against 25, so its average is the more settled of the two. Written reviews are what separate them: 81% of 1Timer's written reviews are positive against 86% of Interval Timer's.

UpkeepUpdate frequency

1Timer ships an update every 6 weeks, Interval Timer every 3 weeks. Both last shipped on September 22, 2026.

Scorecard3 real differences · 7 level
1Timer versus Interval Timer: the parameters behind the verdict, then further details
Parameter1TimerInterval Timer
PriceFreeFree
Rating4.7 (1.2K ratings) — better4.6 (25 ratings)
Positive reviews81.0% of reviews85.7% of reviews — better
Number of ratings1.2K — better25
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.0 — better26.0
Further details — not scored
Size18 MB49 MB
Age rating4+4+
DeveloperDiffuse Thinking LLCMuhammed Sahil Arayakandy

Customer experience

1Timer

All ratings1,196 ratings
Positive94.3%
Neutral2.4%
Negative3.3%
Written reviews232 reviews
Positive81.0%
Neutral6.9%
Negative12.1%

Interval Timer

All ratings25 ratings
Positive92.0%
Neutral0.0%
Negative8.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Bugs and requests

1Timer

Reported bugs

4 issues
  • Ads closing the app
  • Voice prompts not working after switching to background
  • Timer number disappearing when closing app from background
  • White noise/static audio issue

Requested features

7 requests
  • Delayed start option
  • Ability to record custom voice messages
  • More alarm sound options
  • Apple Watch app
  • Ability to organize timers into folders
Show 2 more
  • Live Activities support
  • Customizable Dynamic Island display

Interval Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

1Timer

Subscriptions3
  • Pro Weekly7 Days trial$0.997 Days
  • Pro Monthly7 Days trial$2.991 Month
  • Pro Annual1 Month trial$9.991 Year
One-time2
  • Pro Lifetime$19.99
  • Pro Lifetime$39.99
3 purchases

Interval Timer

Subscriptions2
  • Monthly Premium$4.991 Month
  • Yearly Premium7 Days trial$24.991 Year
One-time1
  • Lifetime Premium$49.99

Questions

Is 1Timer free?
1Timer 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, 1Timer or Interval Timer?
1Timer is rated higher. 1Timer averages 4.7 out of 5 from 1.2K ratings, while Interval Timer averages 4.6 from 25 ratings.
Do 1Timer or Interval Timer have ads?
1Timer shows ads; Interval Timer does not.
Which is updated more often, 1Timer or Interval Timer?
1Timer ships an update every 6 weeks, and Interval Timer every 3 weeks. Most recently, 1Timer was updated on September 22, 2026 and Interval Timer on September 22, 2026.

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