Comparison

Apex vs IntervalTimer(x)

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

Head to head
About

Apex

This app analyzes your Apple Watch and Apple Health data to provide insights into your body's recovery, strain, and sleep quality. Optimize training, prevent overtraining, and improve overall well-being with personalized performance scores and trends.

Highlights
  • Recovery Score
  • Strain Score
  • Sleep Tracking & Deficit
  • Vital Monitor
  • Advanced Trends & Insights
  • Personalized Fitness Level
  • Training Log & Workout Analysis
Features
Read full description

Your body provides the data. Apex Intelligence gives you the answers.
Other apps show you numbers. Apex Athletic tells you exactly what to do with them — train or recover, backed by YOUR HRV, sleep and strain. ASK YOUR AI COACH — GET REAL ANSWERS
"Should I train hard today or take a rest day?"
"Why is my recovery low this week?"
"Build me a muscle-building plan around my schedule." No generic tips. Every answer is based on your actual health data from Apple Health and Apple Watch. Your AI coach learns your patterns — and your plan stays fully adjustable via chat, anytime. UNDERSTAND YOUR BODY AT A GLANCE * Recovery Score — training readiness from HRV & resting heart rate * Strain & Energy Level — real-time load and remaining capacity * Sleep Analysis — quality, stages, and sleep debt * Stress Score, VO₂max & heart rate zones DISCOVER YOUR BIO AGE
How old is your body really? Apex calculates your biological age from 10+ markers — including your Pace of Aging, so you can see whether your lifestyle is speeding you up or slowing you down. LOG FOOD IN SECONDS
Snap a photo or scan a barcode — calories and macros are detected automatically. Then see how your nutrition actually affects your recovery. No manual entry. FIND WHAT WORKS FOR YOU
Track 100+ habits (alcohol, caffeine, meditation and more). Apex automatically correlates them with your recovery and shows you what's helping — and what's holding you back. WHY APEX ATHLETIC * A personal AI coach, not a static dashboard * Workout plans that adapt to your daily recovery * Deep Apple Watch, widget & Apple Health integration * Available in English, German and Spanish — with elegant Dark Mode Stop guessing. Start understanding.
Download Apex Athletic and ask your AI coach your first question today. Important Information: All functions specified above require an active paid subscription. Disclaimer: This app is designed for general wellness and fitness tracking purposes only. It is not a medical device and does not provide medical advice, diagnoses, or treatment recommendations. All data and insights provided by this app are calculated solely based on data from Apple Health. The app provider is not responsible for the accuracy, completeness, or reliability of the data provided by Apple Health or the calculations derived from it. All data and insights provided by this app are for personal wellness tracking and should not be used to make medical decisions. The app's features are intended to help you better understand your general wellness patterns and fitness progress. If you have any health concerns or experience unusual symptoms, please consult a qualified healthcare professional. This app is not a substitute for professional medical advice or care. By using this app, you acknowledge that it is a wellness and fitness tracking tool only, and you agree not to use it for any medical purposes or decision-making. Terms and Conditions: https://cerulean-boa-a9c.notion.site/Terms-and-Conditions-1bc40091b9718088aa26e46e5937c34e Privacy: https://cerulean-boa-a9c.notion.site/Privacy-Deutsch-1a540091b9718017bf89c1edea6fce8c

About

IntervalTimer(x)

This app provides a customizable interval timer for workouts, focus sessions, and breaks. It offers audio cues, visual progress, and tracks workout history locally. Optional body metrics can be entered for calorie estimates, all stored securely on your device.

Highlights
  • Customizable work/rest/sets intervals
  • Audio cues for transitions
  • Workout history log
  • Local calorie estimates
  • Offline functionality
  • Siri Shortcuts integration
Features
Read full description

IntervalTimer - Train On Your Terms IntervalTimer is a clean, customizable interval timer built for workouts, focus sessions, and recovery breaks. Set your work duration, rest duration, and number of sets , then let the app keep you on pace with audio cues and a visual progress indicator. Your data stays on your device. IntervalTimer collects no personal data and has no account system. Everything - your workout history, body metrics, timer configurations, and intentions - is stored locally using Apple's SwiftData framework. Nothing leaves your phone. There are no servers, no cloud sync, no analytics pipelines, and no third-party SDKs tracking your behavior. The optional body metrics (weight, height, sex) you enter for calorie estimates are saved only in your device's local storage via UserDefaults. They are never transmitted, never shared, and never used for any purpose beyond the in-app calorie calculation you see on screen. Features: - Fully customizable work/rest/sets intervals - Audio cues for transitions and completion - Workout history log with session details - Calorie estimates based on your local profile - Intentions tracking to reflect on your mindset - Pre-configured templates to get started fast - Siri Shortcuts and Spotlight integration - Works entirely offline - always Disclaimer: Calorie estimates are educational only and not a substitute for medical advice.Consult a healthcare provider before making health decisions.

Screenshots

Apex4 screens
IntervalTimer(x)4 screens

Verdict

The call

The clearest difference is in-app purchases: IntervalTimer(x) at none against Apex's 10. IntervalTimer(x) also leads on rating (5.0 vs 4.8). Apex's advantage is ratings volume (29 vs 1). On price, update cadence, 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. Apex sells 10 in-app purchases, starting at $2.99 per 7 days. IntervalTimer(x) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

IntervalTimer(x) holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Apex has 29 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Apex ships an update fortnightly, IntervalTimer(x) every 3 weeks. The most recent releases landed on September 19, 2026 and July 6, 2026 respectively.

Scorecard4 real differences · 6 level
Apex versus IntervalTimer(x): the parameters behind the verdict, then further details
ParameterApexIntervalTimer(x)
PriceFreeFree
Rating4.8 (29 ratings)5.0 (1 ratings) — better
Positive reviews78.6% of reviews
Number of ratings29 — better1
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS17.6 — better18.1
Further details — not scored
Size44 MB9 MB
Age rating4+4+
DeveloperEnrico ZeilerShapeHaven Innovations LLC

In-app purchases

10 purchases

Apex

Subscriptions10
  • Weekly Pro$2.997 Days
  • Monthly Pro$4.991 Month
  • Monthly Pro$9.991 Month
Show 7 more
  • Yearly Pro Offer3 Days trial$17.991 Year
  • Yearly Pro -25$24.991 Year
  • Yearly Pro Offer 30%off3 Days trial$27.991 Year
  • Yearly Pro7 Days trial$34.991 Year
  • Yearly Pro$39.991 Year
  • YearlyPro Introduction Offer3 Months trial$39.991 Year
  • Yearly Pro7 Days trial$49.991 Year
None

IntervalTimer(x)

No in-app purchases

Questions

Is Apex free?
Apex is free to download, with in-app purchases available.
Is IntervalTimer(x) free?
IntervalTimer(x) is free to download, with no in-app purchases.
Which has better reviews, Apex or IntervalTimer(x)?
IntervalTimer(x) is rated higher. Apex averages 4.8 out of 5 from 29 ratings, while IntervalTimer(x) averages 5.0 from 1 ratings.
Do Apex or IntervalTimer(x) have ads?
Neither Apex nor IntervalTimer(x) shows ads.
Which is updated more often, Apex or IntervalTimer(x)?
Apex ships an update fortnightly, and IntervalTimer(x) every 3 weeks. Most recently, Apex was updated on September 19, 2026 and IntervalTimer(x) on July 6, 2026.

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