Comparison

Fast vs SleepInsight+

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

Head to head
About

Fast

Features
Read full description

Feel Better. Stay on Track. Your Fasting Journey, Made Simple. Build healthy habits and stay in tune with your body—without the clutter or complexity. This beautifully simple app helps you track intermittent fasting in a calm, intuitive way that fits effortlessly into your daily routine. Why You’ll Love It: • No accounts, no login, no tracking. Your data, your device. • Gentle, Simple Tracking: Start and stop fasts with just a tap. No distractions, just a clear view of your progress. • Apple Watch Ready: Track your fasts directly from your wrist—even without your phone nearby. • At-a-Glance Insights: Stay mindful of your fasts with elegant widgets on your iPhone and Apple Watch. • Private by Design: Your data is stored securely in your personal iCloud account. Nothing ever leaves your devices. Whether you’re fasting for wellness, focus, or energy, this app is your quiet companion on the journey.

About

SleepInsight+

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SleepInsight+ gives you a clear, independent understanding of your sleep using only the data already stored in Apple Health. No account, no cloud storage, and no tracking — everything stays securely on your device. SleepInsight+ analyzes your nightly sleep data and provides: • Independent Sleep Score based on duration, bedtime consistency, and interruptions • Daily insights explaining what influenced your sleep • Tonight’s Plan, offering simple, actionable suggestions based on your recent patterns • Weekly trends to help you understand how your sleep changes over time • Fully private on-device processing, using only your Apple Health sleep data SleepInsight+ does not record audio, detect sleep automatically, diagnose conditions, or send data to servers. It simply interprets your Apple Health sleep records and presents them in a simple, helpful format. Citations & Sources: SleepInsight+ includes a dedicated section referencing CDC, NIH, WHO, and Apple Health guidelines for transparency and accuracy. Medical Disclaimer: SleepInsight+ provides general wellness insights only and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making medical decisions. Designed for everyday users who want simple, accurate sleep insights without complexity.

Screenshots

Fast4 screens
SleepInsight+4 screens

Verdict

The call

The clearest difference is device support: Fast at 3 against SleepInsight+'s 1. SleepInsight+'s advantage is iOS requirement (17.0 vs 26.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level
Fast versus SleepInsight+: the parameters behind the verdict, then further details
ParameterFastSleepInsight+
PriceFreeFree
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size35 MB1 MB
Age rating4+4+
DeveloperCodeHiveTejas Juthani

In-app purchases

None

Fast

No in-app purchases

None

SleepInsight+

No in-app purchases

Questions

Is Fast free?
Fast is free to download, with no in-app purchases.
Is SleepInsight+ free?
SleepInsight+ is free to download, with no in-app purchases.
Do Fast or SleepInsight+ have ads?
Neither Fast nor SleepInsight+ shows ads.

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