Comparison

Spark vs Intermittent Fasting

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

Head to head
About

Spark

Features
Read full description

Heart rate,Count Calories, lose weight and track fitness with Spark-Fitness Spark-Fitness is your personal diet and lifestyle coach. Get customized workout & meal plans & get healthy. Physiotherapist and dietician can be assigned for your diet plan and further consultations.

About

Intermittent Fasting

This app helps you track your intermittent fasting journey with a simple, private interface. It offers a free tier with essential tracking tools and an optional one-time purchase for advanced features like water and protein tracking, and deeper insights. Your data remains on your device for maximum privacy.

Highlights
  • Intermittent fasting timer
  • Metabolic phase tracking
  • Water and protein tracking
  • Home and Lock Screen widgets
  • Apple Watch integration
  • On-device AI insights
  • Private data storage
Features
Read full description

Fasted is a calm, private intermittent-fasting tracker for iPhone, iPad and Apple Watch. Start a fast in one tap, follow your metabolic phases, and build a streak — no account, no analytics, no ads. Now made for iPad: your timer and your stats side by side, in landscape or portrait, with Split View and keyboard shortcuts. On iPhone, turn it sideways — landscape works too. The fasting basics are free, forever. When you want more, unlock Fasted Pro with a single one-time purchase. Buy once, own forever. No subscription, ever. WHAT'S FREE • Fasting timer — start now, start from your last meal, end, or cancel • All 8 preset plans, plus a custom plan • Metabolic phase tracking • iPhone, iPad and Apple Watch, always in sync • Apple Watch fasting page and complication • Fasting widgets for your Home and Lock Screen • Goal-reached and fasting-window reminders • Current streak, this-week hours, and your recent history • Light, dark, and system themes WHAT FASTED PRO UNLOCKS • Water tracking — goal, one-tap buttons you can customise, pace, reminders, on Watch and widgets • Protein tracking — set a daily goal and quick-add in a tap; rings on iPhone and Watch • Deeper stats — longest streak, 30-day adherence, weekly trends, water and protein streaks, 14-day phase history • On-device AI weekly insight • Phase-transition notifications • Live Activity and Dynamic Island • Siri, Shortcuts, and App Intents Buy once. Own forever. No subscription. ALREADY BOUGHT FASTED? If you previously purchased Fasted, you already own Pro — it unlocks automatically, free, the moment you update. Thank you for being an early supporter. PRIVATE BY DESIGN No account. No analytics. No tracking. Your fasting, water, and protein data stay on your device and sync only through your private iCloud. Optional Apple Health integration for fasts, water and dietary protein, read and write, with your permission. Protein tracking is deliberately simple — a daily goal and quick-add, like the water tracker. No barcode scanning, no calorie or macro counting.

Screenshots

Spark4 screens
Intermittent Fasting4 screens

Verdict

The call

The clearest difference is in-app purchases: Spark at none against Intermittent Fasting's 1. Spark also leads on iOS requirement (10.0 vs 26.0). On price, ads and device support 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. Intermittent Fasting sells 1 one-off in-app purchase. Spark asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Spark versus Intermittent Fasting: the parameters behind the verdict, then further details
ParameterSparkIntermittent Fasting
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS10.0 — better26.0
Further details — not scored
Size45 MB7 MB
Age rating12+4+
DeveloperPETAL AUTOMATIONSCliapis

In-app purchases

None

Spark

No in-app purchases

1 purchases

Intermittent Fasting

One-time1
  • Fasted Pro$4.99

Questions

Is Spark free?
Spark is free to download, with no in-app purchases.
Is Intermittent Fasting free?
Intermittent Fasting is free to download, with in-app purchases available.
Do Spark or Intermittent Fasting have ads?
Neither Spark nor Intermittent Fasting shows ads.

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