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App Imp

Interval timer.

Installs
19.2M

Across 6 of 11 apps we could match.

Interval Timer has 63% of them.

  • 11 apps
  • 3,081 reviews held
  • 830 negative
  • Median $1.9910 of 11 charge.

2 gaps.

Shares of this market’s 830 negative reviews.

Billingelevated

43.5% vs 30.6% typical store-wide.

Reviews · 3 of 361
  • Interval Timer □ HIIT Timer1star· Sep 12, 2026

    Bait and bill — The underlying functionality is meh. Setting up a workout for the first time is a bit confusing and not super intuitive. But more than that the big problem I have is that it simply wouldn’t work past the first week (or about 3-4 workouts for me) without a subscription. This app wasn’t advertised as a “free trial”, but that’s what it is. I don’t have a problem with devs getting paid

  • Interval Timer1star· Sep 9, 2026

    Not a free app — App looks free then you have to pay $35 for a timer…

  • Interval Timer □ HIIT Timer2star· Sep 7, 2026

    Works once — Works one time, then they ask for a review and when you go to reset they won’t let you unless you sign up for a subscription

Named problems · 2
  • Price judged too high for the value11 of 361
  • Trial converted without clear consent7 of 361

Adselevated

14.1% vs 10.3% typical store-wide.

Reviews · 3 of 117
  • Interval Timer - Tabata Timer1star· Aug 19, 2026

    What premium — I paid $9.99 for the premium account and it still opens the pop up selling me the premium features every time I open. It’s like the upgrade didn’t take to my app even though they charged me for it. I tried to contact support for help but haven’t heard back in weeks

  • Timer Plus - Workouts Timer2star· Aug 18, 2026

    Ads — Was good. Now they want to advertise to me and have now asked for personal data.

  • Simple Interval Timer1star· Aug 14, 2026

    giant obnoxious banner asking to stalk you — this app could be vibe coded but it demands that you give it permission to stalk you to “give you better ads”

Also counted

ThemeOf 830 negatives
  • Performance77 · 9.3% · 8 apps
  • Limits & caps39 · 4.7% · 5 apps
  • Support36 · 4.3% · 7 apps
  • UX27 · 3.3% · 8 apps
  • Sync & data17 · 2.0% · 4 apps
  • Login & auth8 · 1.0% · 4 apps

The tick marks the store-typical rate. A review can mention more than one theme, so these sum past 100%.

What Apple surfaces for “interval timer”

Position in Apple’s suggestions
1510
free
fullest
run & hiit
haptic
pacecue
plus
tempo sports
seconds
boxing
tabata timer
boxing round
workout timer
hiit timer
010203041
Countries

Is anyone looking for this?

What Apple and Google complete after interval timer, in their order.

Who they're for
runningtasksfitnessthe gymworkoutexercisegalaxy watch
Google
interval timerinterval timer appinterval timer onlineinterval timer app freeinterval timer iphoneinterval timer for apple watchinterval timer with soundinterval timer watch
App Store
hiit timer freeinterval timer for apple watchinterval timer for runninginterval timer freehiit timerinterval timerfree hiit timers for gym goersinterval timer for tasks

Marked App Store phrases are searched, but no app in this market says them in its name. Audiences are what Apple and Google complete after “interval timer for”, with the query stripped.

Potential customers

People the apps here do not serve, and what they asked for.

  • Shut out by device or contextApple Watch 18 · iPad 223
  • Wants lessjust a basic one 7 · too many features 510
  • Wants it to plug inApple Watch 5 · Apple Health 29

Counted in 1 to 4 star reviews. The small numbers are how many reviews named each thing. What they wrote is in the free trial.

Who’s in it

All 11 apps counted in this market · 2026-09-21.

Interval Timer is the biggest app here that has stopped shipping. Last update 15 months ago, at 12,030,409 installs.

Apps count as part of a market for 90 days after they last appear in it. Installs are Google Play's own count, last captured 2026-09-21. 6 of 11 apps have an Android listing we could match. A dash means we could not pair the two stores, not that the app is absent from Play. Amber marks an app that has not shipped in over 90 days, the 90th percentile across every market we hold.

What they charge, and what it costs them

Prices from Apple’s public pages; the share counts payment-mechanics language only.

AppMoney complaints
Interval Timer - Tabata Timer$0.99–$9.99 · 6 tiers7% of 57
Interval Timer □ HIIT Timer$1.99–$29.99 · 5 tiers2.2% of 227
Tabata Timer and HIIT Timer$19.99–$19.99 · 2 tiers0% of 75
Timer Plus - Workouts Timer$2.99–$19.99 · 2 tiers0% of 26
Seconds Interval Timer$7.99–$7.99 · 1 tiers0% of 110
Interval Timer ++$0.99–$8.99 · 6 tiers0% of 93
Intervals Pro: HIIT Timer$0.99–$69.99 · 8 tiers0% of 52
Interval Timer Plus$2.99–$2.99 · 1 tiers0% of 2
Simple Interval Timer$0.99–$2.99 · 4 tiers0% of 5
Interval Timer$1.99–$34.99 · 10 tiers0% of 58

What each one owns, where each is exposed

Timer+ Countdown & Stopwatch

Owns. 40,767 ratings, deep legacy install base

Exposed. 44.99 max tier, redesign-triggered ad/billing rage across years of reviews

Interval Timer □ HIIT Timer

Owns. 86,352 ratings, largest reach in set

Exposed. Paywall hits mid-setup after a tweak, 45% negative

Tabata Timer and HIIT Timer

Owns. 73,685 ratings, low 19% negative, flat 19.99 tier proves willingness to pay

Exposed. Newly mandated subscription broke years-long free habit, trust break

Seconds Interval Timer

Owns. 23,542 ratings, single flat 7.99 tier, simple pricing

Exposed. Sync/login failures, unresponsive support after payment

PushPress Workout Timer

Owns. 5,775 ratings, no IAP, ad-supported only

Exposed. Ads crash and mute during active workouts, ruins tracking

Interval Timer Plus

Owns. 6,035 ratings, 1% negative — near-clean single-tier model

Exposed. Small reach; unclear if simplicity scales to more features

Timer Plus - Workouts Timer

Owns. 59,586 ratings, 14% negative, modest tiers

Exposed. Confusing tab-switching UX, users 'push buttons randomly'

Browse the apps behind these counts

Every app we count, with the complaint it runs furthest above the store’s typical rate.

Open the app library

Is there a market for a new interval timer app?

11 apps compete here. They hold 19,204,240 installs on Google Play, counted across the 6 we could match. We hold 3,081 of their App Store reviews. Those are counts, not a verdict. The page shows what is unfixed, not whether to build.

How much do interval timer apps charge?

10 of the 11 apps we could check charge inside the app. Half of them start at $1.99 or less.

What do people search for when they want an interval timer app?

We scan 41 App Store storefronts. Typing interval timer completes to “fullest - interval timer chime” in 40 of them. Then “haptic interval timer” in 40, “pacecue: interval timer” in 38. These are Apple’s own suggestions. They show what gets typed, not how often.

What do users complain about most in interval timer apps?

1. Billing: in 10 of 11 apps, 43.5% of negative reviews; 2. Ads: in 7 of 11 apps, 14.1% of negative reviews. Counted from 830 negative reviews on the 2026-09-21 snapshot, never estimated.

How this is counted

Every number is arithmetic over the reviews we hold, re-counted weekly: nothing modelled, nothing scored. Themes come from a frozen pattern classifier rather than a model reading reviews, so the same review always lands in the same bucket. A market rate is pooled across every app here; the store rate is the same count across 13,514 apps. A complaint is only called a gap when at least half the market carries it, at least 20 reviews are behind it, and the market’s rate is elevated above the store’s, the same cutoff used everywhere on this site, because a problem concentrated in one app is that app’s bug, and a problem every app on the store shares is nobody’s gap.