Comparison

Intervals One vs Rachel’s Fit Physique

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

Head to head
About

Intervals One

Features
Read full description

Intervals One – Your Interval Training Coach The interval timer designed for real workouts. Crystal-clear voice guidance, effortless setup, and intelligent features that adapt to how you train. No clutter. No complexity. Just smart interval training that helps you build better workouts and stay focused. TWO MODES. INFINITE POSSIBILITIES. Simple Mode: Perfect for quick sessions. Set your timing for all exercises at once, hit start, and let the voice guidance coach you through every phase. Ideal for consistent HIIT, Tabata, circuits, or bodyweight training. Premium users can customize each exercise stage with specific movements, reps, and effort levels. Advanced Mode: Complete control. Customize every exercise with individual timings per round, choose specific movements from our exercise library, set rep targets or effort levels, and build structured training programs that match your goals. WHY ATHLETES CHOOSE INTERVALS ONE Clear Voice Coaching: Professional voiceovers - announce every phase, exercise, and transition. Train eyes-free with clear, motivating guidance that keeps you in the zone. Intuitive Design: Create workouts in seconds with our distraction-free interface. No complicated builders or endless menus - just fast, focused setup that gets you moving. Works Everywhere: Train offline, indoors, or outdoors. No internet required once downloaded. Works perfectly with AirPods, speakers, or silent mode with haptics. PERFECT FOR - HIIT & Tabata intervals - AMRAP (As Many Reps As Possible) - Circuit training - Bodyweight workouts - Strength & conditioning - Cardio intervals - Functional fitness - CrossFit-style training SMART COACHING FEATURES - Next exercise cues so you're always prepared - Halfway alerts to pace yourself - Round completion announcements - Customizable countdown timers - Haptic feedback for silent training - Adjustable audio cues - Round recovery periods PRIVACY FIRST Your workout data stays yours. No account required. Optional iCloud sync keeps your workouts and history private and secure across your devices. START FREE Get unlimited basic interval workouts with full timing customization and premium voice guidance - completely free. Upgrade to Premium when you're ready for exercise selection, rep tracking, and advanced per-round customization. Download Intervals One and experience smarter interval training today. Privacy Policy: https://www.ninetysixsoftware.co.uk/hiit-privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Rachel’s Fit Physique

This app offers guided workout programs combining strength, Pilates, and cardio for women seeking to build lean muscle and burn fat. It features over 150 follow-along routines, monthly programs, progress tracking, and offline downloads.

Highlights
  • Over 150 guided workouts
  • Exclusive programs & challenges
  • Monthly new programs
  • Progress tracking
  • Offline workout downloads
  • Apple Watch integration
  • Private community access
Features
Read full description

Designed for women ready to get leaner and stronger, Rachel’s Fit Physique combines Strength, Pilates-inspired and Cardio workouts into guided programs and challenges that are simple, effective, and fun! Rachel uses her degree in Kinesiology to create science-based routines that deliver real results. Whether you’re working out at home or on the go, you’ll build lean muscle, burn fat, and finally see body changes that last. What you will find inside the Rachel’s Fit Physique app with our all-inclusive membership subscription: -Over 150+ guided, follow-along workouts designed to increase strength and improve aesthetics. -Exclusive programs & challenges —specifically designed for strength and aesthetic goals. -New monthly programs with a dedicated focus in an easy-to-navigate calendar to find your workout of the day in seconds. --Track your progress — mark workouts complete and easily save favorites to stay consistent. -An Ad-free, distraction-free experience -A customizable music experience- choose from no music, music I selected, or select your own! -A variety of low-impact fitness types including Pilates, Strength Training, Reformer Pilates, Wall Pilates, Walking and Cardio Workouts -Access to all my popular 28 day challenges, easier to find and track progress, and a customizable music experience. -Download classes for offline use — perfect for travel, gym, or no WiFi days. -Integration with Apple Watch- track your workouts and monitor duration, calories burned, heart rate and more -Ability to cast workout from app to a smart TV for TV viewing -Access to the private RFP community within the app for support, accountability, and motivation. Your path to a leaner, stronger body starts here. Join the Rachel’s Fit Physique app to discover effective routines that help you feel amazing and achieve lasting results. ----- Rachel's Fit Physique includes Apple Watch - You can track your workouts and meet your fitness goals. - Monitor Stats during Workouts: View heart rate/calories burned on your watch & video player. - HEALTH App: Apple Watch integrates with Apple's Health app (Healthkit) to track workouts, duration, calories burned, heart rate, and active energy. You choose the data you want stored, and you can change it anytime in the Health app. - FITNESS App: Apple Watch integrates with Apple's Fitness App, and workouts contribute to your daily goals. View stats, share your activity, and get those Activity Rings! - Use your Watch as a Remote: Play, stop, & rewind videos without interrupting workouts. - Install using iPhone: Install app on iPhone, open Watch app, select "Show on Apple Watch". ----- ▷ Already a Member? Sign-In to access your subscription. ▷ New? Subscribe in the app to get instant access. Rachel’s Fit Physique offers auto-renewing subscriptions. You'll receive unlimited access to content on all your devices. Payment is charged to your account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current billing period, or the trial period (when offered). Cancel anytime in Account Settings. For more information see our: -Terms of Service: https://rachelsfitphysique.com/pages/terms -Privacy Policy: https://rachelsfitphysique.com/pages/privacy

Screenshots

Intervals One4 screens
Rachel’s Fit Physique3 screens

Verdict

The call

The clearest difference is update cadence: Rachel’s Fit Physique at every 4 weeks against Intervals One's every 4 months. Rachel’s Fit Physique also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). 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. Intervals One sells 3 in-app purchases, starting at $1.99 per month and Rachel’s Fit Physique sells 2 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Intervals One ships an update every 4 months, Rachel’s Fit Physique every 4 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Intervals One versus Rachel’s Fit Physique: the parameters behind the verdict, then further details
ParameterIntervals OneRachel’s Fit Physique
PriceFreeFree
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 4 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.0 — better
Further details — not scored
Size64 MB65 MB
Age rating4+4+
DeveloperNinety Six Software LtdRACHEL'S FIT PILATES LLC

In-app purchases

3 purchases

Intervals One

Subscriptions2
  • Pro Monthly7 Days trial$1.991 Month
  • Pro Annual$14.991 Year
One-time1
  • Pro Lifetime$19.99
2 purchases

Rachel’s Fit Physique

Subscriptions2
  • Monthly Membership7 Days trial$29.991 Month
  • Yearly Subscription7 Days trial$299.991 Year

Questions

Is Intervals One free?
Intervals One is free to download, with in-app purchases available.
Is Rachel’s Fit Physique free?
Rachel’s Fit Physique is free to download, with in-app purchases available.
Do Intervals One or Rachel’s Fit Physique have ads?
Neither Intervals One nor Rachel’s Fit Physique shows ads.
Which is updated more often, Intervals One or Rachel’s Fit Physique?
Intervals One ships an update every 4 months, and Rachel’s Fit Physique every 4 weeks. Most recently, Intervals One was updated on October 30, 2026 and Rachel’s Fit Physique on November 5, 2026.

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