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Best Intermittent Fasting Apps for iPhone (2026)

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

Zero: Fasting & Food Tracker is the top-ranked of 31 intermittent fasting apps on iPhone, at S tier with 4.8/5 from 445,292 ratings.

  1. 1
    Zero: Fasting & Food TrackerS
    Free + IAP · ★ 4.8 · 445,292 ratings · score 98
  2. 2
    Fastic Weight Loss & FastingS
    Free + IAP · ★ 4.8 · 246,095 ratings · score 97
  3. 3
    Intermittent Fasting Tracker:S
    Free + IAP · ★ 4.9 · 51,871 ratings · score 96
  4. 4
    BodyFast: Intermittent FastingS
    Free + IAP · ★ 4.7 · 146,161 ratings · score 96
  5. 5
    Intermittent Fasting Tracker -S
    Free + IAP · ★ 4.9 · 29,114 ratings · score 96

What belongs in this list

Follow an intermittent fasting schedule and know when to eat and when to fast.

Not here: calorie counting alone; a general fasting log alone; a recipe collection alone; a workout interval timer alone; an AI chatbot asked for diet advice 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
ZeroFasticIntermittent Fasting TrackerBodyFastIntermittent Fasting Tracker -Fasting Tracker • Easy FastFastEasy
A
FastHabitFasting Tracker App by NumifySunriseIntermittent Fasting and Diet.FastinFastWindowDaily Fast
B
KompanionSuavitaLitely-FoodUnimealPrimeFasting For Weight Loss AppFasting + Intermittent Fasting
C
Fasting Tracker & Diet AppNutriWalkingIF: Intermit…Intermittent Fasting Tracker ™DoFastingAtomic FastSip
D
Intermittent Fasting for MenIntermittent Fasting
F
None at F yet

Compare every app

  1. 1
    Zero: Fasting & Food TrackerS
    Free + IAP · ★ 4.8 · 445,292 ratings · score 98 · best in class
  2. 2
    Fastic Weight Loss & FastingS
    Free + IAP · ★ 4.8 · 246,095 ratings · score 97 · best in class
  3. 3
    Intermittent Fasting Tracker:S
    Free + IAP · ★ 4.9 · 51,871 ratings · score 96 · best in class
  4. 4
    BodyFast: Intermittent FastingS
    Free + IAP · ★ 4.7 · 146,161 ratings · score 96 · best in class
  5. 5
    Intermittent Fasting Tracker -S
    Free + IAP · ★ 4.9 · 29,114 ratings · score 96 · best in class
  6. 6
    Fasting Tracker • Easy FastS
    Free download · ★ 5.0 · 9,034 ratings · score 95 · best in class
  7. 7
    FastEasy: Intermittent FastingS
    Free + IAP · ★ 4.6 · 78,864 ratings · score 95 · best in class
  8. 8
    FastHabit Intermittent FastingA
    Free download · ★ 4.8 · 13,896 ratings · score 92 · excellent
  9. 9
    Fasting Tracker App by NumifyA
    Free + IAP · ★ 4.7 · 5,918 ratings · score 92 · excellent
  10. 10
    Sunrise - Intermittent FastingA
    Free + IAP · ★ 4.8 · 9,726 ratings · score 90 · excellent
  11. 11
    Intermittent Fasting and Diet.A
    Free download · ★ 4.7 · 5,294 ratings · score 89 · excellent
  12. 12
    Fastin: Intermittent FastingA
    Free + IAP · ★ 4.8 · 10,155 ratings · score 88 · excellent
  13. 13
    Fast: Fasting Tracker & TimerA
    Free + IAP · ★ 4.7 · 3,302 ratings · score 87 · excellent
  14. 14
    Window - Intermittent FastingA
    Free + IAP · ★ 4.5 · 10,596 ratings · score 86 · excellent
  15. 15
    Daily FastA
    Free download · ★ 4.7 · 3,488 ratings · score 85 · excellent
  16. 16
    Kompanion: Weight Loss PlanB
    Free download · ★ 4.7 · 9,302 ratings · score 84 · good
  17. 17
    Suavita: Fasting Tracker AppB
    Free download · ★ 4.6 · 3,669 ratings · score 83 · good
  18. 18
    Litely-Food Tracker & WellnessB
    Free + IAP · ★ 4.7 · 5,328 ratings · score 83 · good
  19. 19
    Unimeal: Fasting and DietB
    Free + IAP · ★ 4.4 · 12,874 ratings · score 82 · good
  20. 20
    Prime: Intermittent FastingB
    Free download · ★ 4.6 · 4,606 ratings · score 80 · good
  21. 21
    Fasting For Weight Loss AppB
    Free download · ★ 4.7 · 6,323 ratings · score 76 · good
  22. 22
    Fasting + Intermittent FastingB
    Free download · ★ 4.8 · 6,823 ratings · score 75 · good
  23. 23
    Fasting Tracker & Diet AppC
    Free download · ★ 4.6 · 12,418 ratings · score 71 · situational
  24. 24
    NutriWalking - Step CounterC
    Free + IAP · ★ 4.0 · 6,544 ratings · score 70 · situational
  25. 25
    IF: Intermittent Fasting 16:8C
    Free download · ★ 4.8 · 2,658 ratings · score 67 · situational · provisional
  26. 26
    Intermittent Fasting Tracker ™C
    Free download · ★ 4.5 · 2,422 ratings · score 66 · situational · provisional
  27. 27
    DoFasting Intermittent FastingC
    Free download · ★ 3.9 · 4,812 ratings · score 65 · situational
  28. 28
    Atomic Fast: Fasting & DietC
    Free + IAP · ★ 5.0 · 29 ratings · score 64 · situational · provisional
  29. 29
    Sip: Water Tracker & ReminderC
    Free + IAP · ★ 5.0 · 2 ratings · score 61 · situational · provisional
  30. 30
    Intermittent Fasting for MenD
    Free download · ★ 4.6 · 2,494 ratings · score 59 · weak · provisional
  31. 31
    Intermittent Fasting - MyFastD
    Free download · ★ 4.7 · 3,180 ratings · score 58 · weak

New in the last 30 days

Questions people ask

What is the best intermittent fasting app for iPhone?
Zero: Fasting & Food Tracker, S tier, ranked #1 of 31, rated 4.8 by 445,292 people.
Which intermittent fasting apps are free?
31 of 31 are free to download: Zero: Fasting & Food Tracker (S), Fastic Weight Loss & Fasting (S), Intermittent Fasting Tracker: (S), BodyFast: Intermittent Fasting (S) and more. 16 of them sell in-app purchases.
Which intermittent fasting app has the best App Store rating?
Fasting Tracker • Easy Fast at 5.0 from 9,034 ratings.
How many intermittent fasting apps reach S or A tier?
15 of 31. 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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