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Best Interval Training Apps for iPhone (2026)

10 apps ranked S through F · · Ranked by AppTierList, computed, never sold · JSON

Part of Workout Routines.

Intervals Pro: HIIT Timer is the top-ranked of 10 interval training apps on iPhone, at S tier with 4.8/5 from 13,687 ratings.

  1. 1
    Intervals Pro: HIIT TimerS
    Free download · ★ 4.8 · 13,687 ratings · score 94
  2. 2
    HIIT | Down DogA
    Free + IAP · ★ 4.9 · 48,360 ratings · score 84
  3. 3
    HIIT • Workouts & TimerA
    Free + IAP · ★ 4.8 · 31,087 ratings · score 81
  4. 4
    7 Minute Workout: Exercise AppB
    Free download · ★ 4.8 · 123,780 ratings · score 72
  5. 5
    7 Minute WorkoutC
    Free download · ★ 4.8 · 14,329 ratings · score 70

What belongs in this list

Do interval workouts that alternate hard effort and rest, with guidance on when to switch.

Not here: a plain countdown timer alone; a running training plan without intervals alone; a music playlist alone; a strength training log alone; the words interval training in the title alone

How we pick

For this list we ask the App Store the same searches a person would, in several countries, and keep every app it returns. A model reads each app's listing and rejects the ones that only mention the use case. Every app that stays is scored out of 100 from four parts, each 0 to 100 and averaged with no weights: its App Store rating, how many people rated it, where the App Store itself ranks it for this list's searches, and how recently its current version shipped. An app showing Apple's Editors' Choice badge gets a fifth part of 100, which can only lift its score. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. The list's leader is S if it scores 80 or more. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. An app already in a tier keeps its place while the tier is at most 2 apps over a quarter; past that, only the apps over that margin go down, lowest score first. Equal scores share a tier, and no app has a better tier than an app ranked above it. An app keeps its tier until its score passes the band edge by more than 1 point, or a full tier or the order above moves it. Only the top 40 of a list get a tier. Read the full method →

S
Intervals Pro
A
HIITHIIT •
B
7 Minute Workout: Exercise App
C
7 Minute WorkoutErgDataWeight LossWeBurnWalking
D
None at D yet
F
7 Minute Workout Challenge

Compare every app

  1. 1
    Intervals Pro: HIIT TimerS
    Free download · ★ 4.8 · 13,687 ratings · score 94 · best in class
  2. 2
    HIIT | Down DogA
    Free + IAP · ★ 4.9 · 48,360 ratings · score 84 · excellent
  3. 3
    HIIT • Workouts & TimerA
    Free + IAP · ★ 4.8 · 31,087 ratings · score 81 · excellent
  4. 4
    7 Minute Workout: Exercise AppB
    Free download · ★ 4.8 · 123,780 ratings · score 72 · good · provisional
  5. 5
    7 Minute WorkoutC
    Free download · ★ 4.8 · 14,329 ratings · score 70 · situational · provisional
  6. 6
    ErgDataC
    Free download · ★ 4.7 · 5,869 ratings · score 68 · situational · provisional
  7. 7
    Weight Loss Walking by SlimkitC
    Free + IAP · ★ 4.4 · 14,854 ratings · score 65 · situational · provisional
  8. 8
    WeBurn: Home Workout for WomenC
    Free download · ★ 4.8 · 2,366 ratings · score 65 · situational · provisional
  9. 9
    Walking for Weight LossC
    Free + IAP · ★ 4.9 · 5,586 ratings · score 63 · situational · provisional
  10. 10
    7 Minute Workout ChallengeF
    $3.99 · ★ 4.7 · 5,939 ratings · score 43 · avoid · provisional

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Questions people ask

What is the best interval training app for iPhone?
Intervals Pro: HIIT Timer, S tier, ranked #1 of 10, rated 4.8 by 13,687 people.
Which interval training apps are free?
9 of 10 are free to download: Intervals Pro: HIIT Timer (S), HIIT | Down Dog (A), HIIT • Workouts & Timer (A), 7 Minute Workout: Exercise App (B) and more. 4 of them sell in-app purchases.
Which interval training app has the best App Store rating?
Walking for Weight Loss at 4.9 from 5,586 ratings.
How many interval training apps reach S or A tier?
3 of 10. Tiers follow fixed score bands: S from 90, A from 80, B from 70, C from 60, D from 50, F below. The list's leader is S if it scores 80 or more. On a list of 20 or more ranked apps, a tier from S to D takes in new apps only up to a quarter of the top 40: an app pushed out of a full tier falls to the next tier with room, and F takes the rest. An app already in a tier keeps its place while the tier is at most 2 apps over a quarter; past that, only the apps over that margin go down, lowest score first. Equal scores share a tier, and no app has a better tier than an app ranked above it. An app keeps its tier until its score passes the band edge by more than 1 point, or a full tier or the order above moves it. Only the top 40 of a list get a tier.

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