Comparison

Interval Timer vs VOID

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

Head to head
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

About

VOID

Features
Read full description

Have your storage under control. VOID shows what is using space on this iPhone and lets you free it up on your terms, in a way that feels like scrolling a feed instead of doing chores. VOID reads the Photos library on your iPhone and shows what is taking up room: large and long videos, 4K clips, screen recordings, screenshots, similar and duplicate photos, Live Photos and oversized images. Everything runs on your device. Nothing is uploaded. Nothing is deleted without your confirmation. YOUR LIBRARY, AS A FEED Open the Feed and your own photos and videos appear as posts, ranked by how much space they take and how little you are likely to miss them. Each post shows the size, the duration and why VOID picked it. Tap Trash or Keep, double-tap to keep, and move on. There is nobody else here: no accounts, no ads, no followers, just your library. STORIES YOU TAP THROUGH At the top of the Feed, stories group your library the way you would want to review it: Biggest, Screenshots, Recordings, Longest, Similar, Duplicates, Blurry, what is stored on this device, and one story for every year. Tap through a story like you do everywhere else, swipe to the next one, and decide as you go. ONE TRASH, EMPTIED WHEN YOU SAY Everything you trash lands in the Trash tab and waits there, like on a Mac. Put anything back with one tap or empty the whole bin when you are ready. Deletions go through the standard iOS confirmation and stay in Recently Deleted for 30 days. LIBRARY GRID Photos and videos in one grid, with size and duration on every tile. Pinch or tap to change the grid size, filter by videos, photos, screenshots or what is stored on this device, and sort by date, size or length. A LIVE DRIVE GAUGE AND SECTOR MAP Home shows how much of this device is used, how much is free, and how much you could get back right now. Every cell in the storage map stands for a slice of your device: videos, photos, screenshots, apps and system, free space. ICLOUD VS THIS DEVICE Many libraries live mostly in iCloud. VOID shows what is stored on this iPhone and what only lives in the cloud, so you know which deletions actually free space here. SIMILAR AND DUPLICATE PHOTOS VOID groups shots that look alike and suggests the sharpest one to keep. You make the final call. WHAT TO EXPECT • Photos and videos never leave your iPhone • No ads, no tracking, no accounts • Nothing is deleted until you empty the Trash, and iOS asks once more • Deleted items stay in Recently Deleted for 30 days • The free tier includes the full scan and 500 MB of cleanup VOID PRO VOID Pro removes the cleanup limit. Pay yearly, or once for lifetime access. Privacy policy: https://www.skylarks.io/apps/void/privacy-policy Terms of service: https://www.skylarks.io/apps/void/terms-of-service

Screenshots

Interval Timer4 screens
VOID4 screens

Verdict

The call

The clearest difference is update cadence: VOID at every 2 days against Interval Timer's every 3 weeks. VOID also leads on iOS requirement (18.0 vs 26.0). Interval Timer's advantage is device support (4 vs 2). On price, 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. Interval Timer sells 3 in-app purchases, starting at $4.99 per month and VOID sells 2 in-app purchases, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update every 3 weeks, VOID every 2 days. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Interval Timer versus VOID: the parameters behind the verdict, then further details
ParameterInterval TimerVOID
PriceFreeFree
Rating4.6 (25 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings25 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad
Requires iOS26.018.0 — better
Further details — not scored
Size49 MB13 MB
Age rating4+4+
DeveloperMuhammed Sahil ArayakandyPrzemyslaw Skowronek

In-app purchases

3 purchases

Interval Timer

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

VOID

Subscriptions1
  • VOID Pro Yearly$19.991 Year
One-time1
  • VOID Pro Lifetime$39.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is VOID free?
VOID is free to download, with in-app purchases available.
Do Interval Timer or VOID have ads?
Neither Interval Timer nor VOID shows ads.
Which is updated more often, Interval Timer or VOID?
Interval Timer ships an update every 3 weeks, and VOID every 2 days. Most recently, Interval Timer was updated on October 9, 2026 and VOID on October 8, 2026.

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