Comparison

Fasting Timer by TrainerDay vs Hold Fast

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

Head to head
About

Fasting Timer by TrainerDay

This app simplifies intermittent fasting with a one-tap start and customizable durations. Track your progress visually and review your fasting history. It's designed for easy habit building without complex features.

Highlights
  • One-tap fast start
  • Customizable fasting durations
  • Flexible start times
  • Visual progress tracking
  • Fasting history
  • Shareable results
Features
Read full description

Fasting Timer is a simple, no-fuss intermittent fasting tracker designed to help you build healthy fasting habits. It's the ultimate app for ADF fasters. Each day when you start your fast. It's just one click, even when you forget to start it at your normal fasting time. Features: • One-tap start - Begin your fast instantly • Customizable durations - Set your preferred fasting window (12, 14, 16, 18, 20+ hours) • Flexible start times - Start now or schedule for later • Visual progress - See your fasting progress at a glance • History tracking - Review your completed fasts • Share your achievements - Export and share your fasting results Whether you're doing 16:8, 18:6, or any other intermittent fasting schedule, this app makes it easy to track your fasting windows without complicated setup or unnecessary features. Free and simple. Start fasting today.

About

Hold Fast

This app provides a clean and reliable timer for intermittent fasting. It offers customizable plans, progress tracking, and live activity updates without ads or clutter. Focus on your fasting goals with an intuitive interface.

Highlights
  • One-tap fasting start
  • Live Activity and Dynamic Island timer
  • Home and Lock Screen widgets
  • Popular fasting plans included
  • Sun Up to Sun Down plan
  • Fasting history and trend charts
  • Start and goal reminders
Features
Read full description

Fasting works. Remembering when you started, when to stop, and whether you're on track? That's the hard part. Hold Fast makes it effortless. Whatever your reason for fasting, Hold Fast keeps up. Some people fast to manage their weight. Others do it for metabolic health, steady energy, sharper focus, longevity, spiritual practice, or simply the discipline of it. Hold Fast doesn't push one goal on you. It just tracks your fast, cleanly and reliably, so you can focus on why you started. Tap once to start your fast. Watch the timer count up on your Home Screen, Lock Screen, and Dynamic Island, without even opening the app. Hit your goal, log the win, and build a streak you can actually see. That's the whole idea: a fasting app that gets out of your way. No noise, no clutter, no ads. Just a clean timer and the data that keeps you consistent. WHY YOU'LL STICK WITH IT • One tap to start, so your fast is always a glance away • Popular plans built in: 14:10, 16:8, 18:6, 20:4, and OMAD • A unique Sun Up to Sun Down plan that tracks your fast to local sunrise and sunset • Streaks and history that make progress feel real and keep you coming back FEATURES • Live Activity and Dynamic Island for real-time progress • Home Screen and Lock Screen widgets in every size • Full fasting history with a month calendar and weekly trend charts • Start and goal reminders so you never miss your window • Private by design. Your data syncs across your devices through your own iCloud, never our servers • Export your complete history to CSV anytime • Sign in with Apple, or just start as a guest • Beautiful in dark mode, with full Dynamic Type support HOLD FAST PRO Go further with a Pro subscription: • Monthly: $2.99 per month • Yearly: $19.99 per year (best value) • Start free with a 7-day trial Payment will be charged to your Apple Account at confirmation of purchase. Your subscription automatically renews unless it is canceled at least 24 hours before the end of the current period, and your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your Apple Account settings. Start your first fast today, and finally hold fast. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://holdfasthq.app/privacy Questions or feedback? Email support@holdfasthq.app. We read every message.

Screenshots

Fasting Timer by TrainerDay4 screens
Hold Fast4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Timer by TrainerDay at none against Hold Fast's 2. Fasting Timer by TrainerDay also leads on ratings volume (12 vs 2) and iOS requirement (15.1 vs 18.0). On price, rating, 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. Hold Fast sells 2 in-app purchases, starting at $2.99 per month. Fasting Timer by TrainerDay asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Fasting Timer by TrainerDay against 5.0 for Hold Fast. That said, the two scores are not equally well evidenced: Fasting Timer by TrainerDay has 12 ratings behind it against 2, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
Fasting Timer by TrainerDay versus Hold Fast: the parameters behind the verdict, then further details
ParameterFasting Timer by TrainerDayHold Fast
PriceFreeFree
Rating5.0 (12 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better2
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size30 MB10 MB
Age rating17+12+
DeveloperTrainerDay IncByron Soto

Customer experience

Fasting Timer by TrainerDay

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Hold Fast

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Fasting Timer by TrainerDay

No in-app purchases

2 purchases

Hold Fast

Subscriptions2
  • Monthly$2.991 Month
  • Yearly$19.991 Year

Questions

Is Fasting Timer by TrainerDay free?
Fasting Timer by TrainerDay is free to download, with no in-app purchases.
Is Hold Fast free?
Hold Fast is free to download, with in-app purchases available.
Which has better reviews, Fasting Timer by TrainerDay or Hold Fast?
Fasting Timer by TrainerDay and Hold Fast are both rated 5.0 out of 5 on the App Store, from 12 and 2 ratings respectively.
Do Fasting Timer by TrainerDay or Hold Fast have ads?
Neither Fasting Timer by TrainerDay nor Hold Fast shows ads.

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