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App Imp

Interval timer

  1. Market

    Installs
    19.3M

    Across 6 of 12 apps we could match.

    • Interval Timer: 12,045,104 installs
    • Timer Plus: 4,906,353 installs
    • Tabata Timer and HIIT Timer: 1,174,413 installs
    • Seconds Interval Timer: 1,119,265 installs
    • Simple Interval Timer: 11,664 installs
    • Interval Timer ++: 196 installs
    • 63% leader share. Interval Timer, by Google Play installs, across the 6 of 12 apps we could match
    • $1.99 median price. Lowest in-app price, median over the 10 apps that list one. 10 of 11 charge.
    • 4 of 12 recently updated. Updated in the 30 days before 2026-10-05

  2. Competition

    1. Interval Timer □ HIIT Timer26 Mar87k ratings$1.99 to $29.99
    2. Tabata Timer and HIIT TimerOct 202574k ratings$19.99
    3. Timer Plus12 Sep61k ratings$2.99 to $19.99
    4. Seconds Interval Timer26 Sep24k ratings$7.99
    5. Interval TimerNov 202519k ratings$4.99 to $9.99 a year
    6. Interval Timer ++Dec 202115k ratings$5.99 to $7.99 a year
    7. Intervals Pro17 Sep14k ratings$19.99 a year
    8. Interval Timer Plus1 Oct6k ratings$2.99
    9. PushPress Workout TimerOct 20206k ratings
    10. Simple Interval TimerJan 20236k ratings$0.99 to $2.99
    11. Interval Timer6 Mar4k ratings$6.99 to $24.99 a year
    12. SimplyTimer-Interval Timer App6 Apr2 ratings

  3. Reviews

    What 3,663 reviews talk about, every star counted.

    1. Ads+2.9%10 of 11 apps
    2. Limits & caps+0.2%11 of 11 apps
    3. Wishlist−2.3%11 of 11 apps
    4. UX−2.7%11 of 11 apps
    5. Support−2.8%8 of 11 apps
    6. Performance−4.9%10 of 11 apps
    7. Billing−6.6%11 of 11 apps
    with
    without

  4. Searches

    Position in Apple’s suggestions
    1510
    010203041
    Countries
    With
    Without

  5. Traffic

    Google Ads, United States, 25 September 2026.

  6. Your test

    Free for 7 days

    What to call it. Where to launch. What a user costs.

    • What to call it
    • Where to launch
    • What a user costs
    • Every review, word for word
    Start free for 7 days

    No card. Nothing to cancel. The counted page stays free either way.

Is there a market for a new interval timer app?

12 apps compete here. They hold 19,256,995 installs on Google Play, counted across the 6 we could match. We hold 3,663 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. 1 more app has no price data yet.

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

We scan 41 App Store storefronts. Typing interval timer completes to “interval timer: circuit & hiit” in 40 of them. Then “pacefold: interval timer” in 40, “reti interval timer” in 39. 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. Ads: in 10 of 11 apps, 6.2% of reviews (3.3% in Health & Fitness apps). Counted from 3,663 reviews of every star on the 2026-10-05 snapshot, never estimated.

Cited: What RevenueCat measures across subscription apps

Their report has no category matching interval timer apps, so only all-category figures are shown. A near-match would be a guess.

  • the median app barely grows; the tails are extreme

    median MRR +5.3% YoY · top decile +306% · bottom decile contracting

  • the launch flood vs the incumbency moat

    ~2,000 → 14,700+ new subscription apps per month (Jan 2022 → Jan 2026), yet pre-2020 apps still hold 69% of subscription revenue

  • even top categories take over 100 days to reach $10k revenue

    >100 days to the first $10k

RevenueCat, State of Subscription Apps 2026, 115,000+ apps · $16B+ tracked revenue · >1B transactions. Published industry figures, shown for context; App Imp’s own numbers are counted from reviews and never mixed with these.

How this is counted

We count the reviews we hold again every week. Nothing is guessed. A topic is found by the words a review uses, so the same review always lands in the same place. Every star counts. A share is the part of all reviews here that mention a topic. We compare it with the same share across 1,164 Health & Fitness apps, the group most of these apps are in. A topic is a gap when at least 20 reviews mention it, at least half the apps have it, and it comes up at least 1.15 times as often as usual. A problem in one app is that app’s bug. A problem in every app is nobody’s gap.