Comparison

Interval Timer・HIIT Timer vs Aqua8tine

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

Head to head
About

Interval Timer・HIIT Timer

This app provides a customizable interval timer for various fitness activities like HIIT, strength training, and yoga. It includes real-time audio cues, heart rate monitoring using your phone's camera, and automatic workout logging to track progress.

Highlights
  • Customizable workout intervals
  • Real-time audio and voice cues
  • Heart rate monitoring via camera
  • Automatic workout logging
  • Workout history and statistics
  • Drag-and-set interface
Features
Read full description

Fitness Timer is your all-in-one workout timer app designed to help you stay focused, train efficiently, and monitor your fitness progress. Whether you're doing HIIT, strength training, Tabata, cardio, or yoga, this interval timer makes it easy to set up custom workouts and follow them with precision. Perfect for both beginners and advanced athletes, Fitness Timer delivers a clean, distraction-free experience with customizable intervals, real-time audio cues, and heart rate tracking—all without interrupting your music or other apps. Interval Timer for Every Workout Fitness Timer is a powerful yet simple workout timer built for all types of interval training: * Create and customize workout intervals for active time, rest time, and number of rounds * Set up timers for HIIT, Tabata, EMOM, AMRAP, circuit training, or stretching * Get started in seconds with a clean drag-and-set interface * Clear audio or voice alerts guide you through each interval Use Fitness Timer to structure your home workouts, gym routines, or running intervals without hassle. Heart Rate Monitor Using Camera Now featuring built-in heart rate monitoring with no extra device required. Use your phone's camera and flashlight to measure your heart rate instantly: * Place your finger on the camera to measure your pulse * Monitor heart rate before, during, or after exercise * Useful for cardio training, recovery, and intensity tracking This feature turns your phone into a lightweight heart rate tracker to support safe, effective workouts. Fitness Tracking and History Fitness Timer automatically logs every session so you can track your progress and stay motivated: * View workout history and total training time * Repeat previous sessions with one tap * Analyze your training patterns in the statistics tab Information about the auto-renewable nature of the subscription. Confirm subscription: Payment will be charged to iTunes Account at confirmation of purchase. Manage subscriptions: Users can manage or unsubscribe in iTunes & App Store account management in the phone system settings. Auto-renewal: Apple iTunes account will be charged for renewal within 24-hours prior to the end of the current subscription period. To cancel the renewal, please turn off auto-renew manually at least 24-hours before the end of the period. No cancellation of the current subscription is allowed during the active subscription period. You can go to the Account Settings to cancel the renewal before the trial ends. The current free trial will be forfeited when you purchase a subscription to the premium version before the trial period ends. By using the app, you confirm that you acknowledge and accept our Privacy Policy and Terms of Service: Privacy Policy: https://sites.google.com/view/reva-desai/privacy Terms of Service: https://sites.google.com/view/reva-desai/terms You no longer need to manually record your workouts—everything is saved automatically.

About

Aqua8tine

Features
Read full description

Aqua8tine: The Ultimate Hydration Companion for Athletes Transform your athletic performance with personalized hydration tracking designed specifically for serious athletes. Aqua8tine combines advanced water intake monitoring with creatine supplementation tracking to optimize your training and recovery. * Personalized for Your Training Custom hydration targets based on your body weight and training intensity Supports normal, intense, and extreme training regimens Smart recommendations that adapt to your athletic goals Real-time progress tracking with visual indicators * Intelligent Water Tracking Effortless drink logging with quick-add options Multiple beverage types: water, protein shakes, sports drinks, and more Visual progress ring showing daily goal completion Comprehensive drink history with timestamps * Creatine Integration Track daily creatine intake alongside hydration Monitor supplement timing for optimal absorption Integrated tracking shows total daily supplementation Perfect for athletes using creatine for performance enhancement * Smart Reminders Customizable hydration reminders throughout the day Intelligent scheduling based on your routine Never miss your hydration goals with gentle notifications Adaptive reminder system that learns your patterns * Performance Insights Daily hydration score and progress analytics Weekly and monthly trends tracking Goal achievement celebrations and motivation Health-focused approach to optimal hydration * Built for Athletes, By Athletes Aqua8tine understands that proper hydration is crucial for peak athletic performance. Whether you're a weekend warrior or a competitive athlete, our app provides the tools you need to stay optimally hydrated and perform at your best. - Key Features: Secure Google Sign-in for seamless access across devices Dark mode interface designed for active lifestyles Offline functionality - track anywhere, sync later Privacy-focused - your data stays secure Intuitive design that works during and after workouts Perfect for: Endurance athletes and runners Strength training and bodybuilding Team sports players Fitness enthusiasts and gym-goers Anyone serious about optimal hydration Download Aqua8tine today and experience the difference proper hydration makes in your athletic performance. Your body will thank you.

Screenshots

Interval Timer・HIIT Timer4 screens
Aqua8tine4 screens

Verdict

The call

The clearest difference is in-app purchases: Aqua8tine at none against Interval Timer・HIIT Timer's 2. 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. Interval Timer・HIIT Timer sells 2 in-app purchases, starting at $2.99 per month. Aqua8tine asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Timer・HIIT Timer ships an update every 4 days, Aqua8tine every 6 days. The most recent releases landed on October 28, 2026 and November 8, 2026 respectively.

Scorecard1 real difference · 8 level
Interval Timer・HIIT Timer versus Aqua8tine: the parameters behind the verdict, then further details
ParameterInterval Timer・HIIT TimerAqua8tine
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size74 MB29 MB
Age rating4+4+
DeveloperReva DesaiKhalil Missaoui

In-app purchases

2 purchases

Interval Timer・HIIT Timer

Subscriptions2
  • Premium Monthly Access$2.991 Month
  • Premium Yearly Access$19.991 Year
None

Aqua8tine

No in-app purchases

Questions

Is Interval Timer・HIIT Timer free?
Interval Timer・HIIT Timer is free to download, with in-app purchases available.
Is Aqua8tine free?
Aqua8tine is free to download, with no in-app purchases.
Do Interval Timer・HIIT Timer or Aqua8tine have ads?
Neither Interval Timer・HIIT Timer nor Aqua8tine shows ads.
Which is updated more often, Interval Timer・HIIT Timer or Aqua8tine?
Interval Timer・HIIT Timer ships an update every 4 days, and Aqua8tine every 6 days. Most recently, Interval Timer・HIIT Timer was updated on October 28, 2026 and Aqua8tine on November 8, 2026.

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