Comparison

Hi Timer vs Muscle Mummies

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

Head to head
About

Hi Timer

Create and customize your own interval workouts with this intuitive timer app. Features include quick start templates, advanced customization, voice cues, and background operation. Seamlessly integrate with your music and save workouts to Apple Health.

Highlights
  • Customizable interval workouts
  • Quick start templates (Tabata)
  • Drag & drop interface
  • Voice and sound cues
  • Background operation
  • Music integration
  • HealthKit integration
Features
Read full description

Hi Timer, Your Personal Interval Training Companion Hi Timer makes it effortless to create and customise your own interval workouts. Whether you’re jumping into a quick Tabata session or building advanced routines like Circuits and Combinations, Hi Timer gives you the tools to stay on track and motivated. Hi Timer is designed to be simple enough for quick sessions, yet powerful enough to handle the most complex training routines. With its intuitive drag-and-drop interface, powerful customization options, and seamless background performance, Hi Timer helps you focus on your workout, not your phone. Featuring: - Quick Start Templates – Get moving right away with popular HIIT formats like Tabata. - Advanced Customisation – Build Circuits, Combinations, or fully custom routines with unlimited flexibility. - Drag & Drop Simplicity – Reorder intervals and sub-timers with ease. - Voice & Sound Cues – Interval names read aloud via text-to-speech, so you never need to glance at your screen. - Works in the Background – Keep your timer running with the screen locked or while using other apps. - Music Integration – Play your own tracks from Apple Music, your library, or other apps alongside your workout. - Smart Sounds – Choose start sounds, halfway alerts, and custom audio cues for every interval. - Cloud Sync & Sharing – Access your timers across devices or share them instantly with friends via a simple link. - HealthKit Integration – Save your completed workouts to Apple Health. This app is for timing only and does not provide medical or fitness advice. Consult a licensed healthcare professional before beginning any exercise program. This app contains optional in-app purchases that grant full access to unlimited timers and workouts, and the ability to share timers between devices. You may be offered a free trial for the Premium subscription. After the free trial period, if offered, the subscription automatically renews with the price and duration given above unless it is cancelled at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account at the confirmation of purchase. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Removing the app doesn’t automatically cancel the subscription. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Muscle Mummies

Features
Read full description

Welcome to Muscle Mummies—a strength and lifestyle coaching app designed by a certified personal trainer who gets it. Whether you're juggling motherhood, a busy schedule, or just want to feel stronger in your skin, this app is built to help women like you train smarter, feel empowered, and stay consistent. Inside the app, you'll find everything you need to level up your fitness with guidance you can trust: Personalized training programs tailored to your goals, cycle, and lifestyle Habit tracking to build momentum and stay accountable Nutrition guidance that supports real-life women—no extremes, just sustainable strategies Education modules to help you train with your body, not against it In-app chat and check-ins for direct support and motivation Community-driven classes and coaching designed exclusively for women Whether you're training from home, in the gym, or getting back into movement post-baby, Muscle Mummies meets you where you are—and helps you move forward, strong and supported. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy

Screenshots

Hi Timer4 screens
Muscle Mummies3 screens

Verdict

The call

The clearest difference is update cadence: Hi Timer at every 3 weeks against Muscle Mummies's every 2 months. On price, ads, in-app purchases 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. Hi Timer sells 3 in-app purchases, starting at $0.99 per month and Muscle Mummies sells 1 in-app purchase, starting at $199.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hi Timer ships an update every 3 weeks, Muscle Mummies every 2 months. Both last shipped on October 3, 2026.

Scorecard1 real difference · 9 level
Hi Timer versus Muscle Mummies: the parameters behind the verdict, then further details
ParameterHi TimerMuscle Mummies
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size17 MB56 MB
Age rating17+17+
DeveloperSophie PayneLAUREN MARGARET CANDY

In-app purchases

3 purchases

Hi Timer

Subscriptions2
  • Hi Timer Premium Monthly$0.991 Month
  • Hi Timer Premium Yearly7 Days trial$3.991 Year
One-time1
  • HiTimer Forever$6.99
1 purchases

Muscle Mummies

Subscriptions1
  • Monthly Online Coaching$199.991 Month

Questions

Is Hi Timer free?
Hi Timer is free to download, with in-app purchases available.
Is Muscle Mummies free?
Muscle Mummies is free to download, with in-app purchases available.
Do Hi Timer or Muscle Mummies have ads?
Neither Hi Timer nor Muscle Mummies shows ads.
Which is updated more often, Hi Timer or Muscle Mummies?
Hi Timer ships an update every 3 weeks, and Muscle Mummies every 2 months. Most recently, Hi Timer was updated on October 3, 2026 and Muscle Mummies on October 3, 2026.

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