Comparison

IntervalTimer(x) vs Kim

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

Head to head
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.

About

Kim

This personal health assistant helps you understand what wellness practices work best for your body. Log your sleep, workouts, food, mood, and habits, then ask questions via voice or chat to uncover personalized insights and patterns.

Highlights
  • Personal wellness experiments
  • Recovery and wellness pattern insights
  • Voice and chat interaction
  • Apple Health integration
  • Mood, sleep, exercise, and habit tracking
  • Supplement and food logging
  • Source-backed answers
Features
Read full description

Meet Kim, a smarter way to log your day, understand your patterns, and ask questions about your health and fitness. Kim helps you track food, sleep, recovery, mood, supplements, workouts, and daily habits in one place. Talk to Kim by voice or chat, log what matters, and get personalized health insights based on your saved logs, Apple Health trends, and recent conversations. WHAT YOU CAN DO WITH KIM Voice + Chat Talk to Kim hands-free or type. Ask about your sleep, energy, food, mood, workouts, supplements, recovery, or wellness routines. Apple Health Kim connects to Apple Health and only uses the data you choose to share. If apps or devices like Apple Watch, Oura, WHOOP, Garmin, or Fitbit sync data into Apple Health, Kim can use the supported data available there. Food Tracking Snap a meal photo to estimate approximate calories and macros. You can also log meals by voice or text. Supplement Logging Log supplements and see how they may relate to your wellness trends. Kim can provide general educational context, but does not prescribe supplements, dosing, or treatment. Mood, Sleep, Exercise, and Habits Log moods, workouts, meals, supplements, and daily habits. Kim helps you reflect on patterns across what you track. Personal Wellness Experiments Track a supplement, habit, or nutrition change and review how it may relate to your sleep, recovery, mood, or energy over time. Recovery Forecast Explore wellness patterns based on your daily logs, activity, nutrition, and Apple Health trends. Designed for self-reflection, not medical prediction. Source-Backed Answers Kim can include your data, relevant web context, and source links when available. Privacy First Your data is yours. Kim uses trusted third-party AI services for selected features, including chat, food photo analysis, and voice. When you use those features, only the relevant information needed for your request is sent based on your consent. IMPORTANT Kim is for wellness and fitness tracking, self-reflection, and educational insights. Kim is not a medical device, a doctor, or a substitute for professional medical care. Kim does not diagnose, treat, cure, prevent, or monitor disease. Always seek a doctor's advice before making medical decisions. Tell us what to build next: support@oculimedical.com Privacy Policy: https://www.oculimedical.com/legal-pages/privacy-policy Terms of Use: https://www.oculimedical.com/legal-pages/terms-conditions

Screenshots

IntervalTimer(x)4 screens
Kim4 screens

Verdict

The call

The clearest difference is update cadence: Kim at every 3 days against IntervalTimer(x)'s every 3 weeks. Kim also leads on iOS requirement (16.4 vs 18.1). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for IntervalTimer(x) against 5.0 for Kim. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

IntervalTimer(x) ships an update every 3 weeks, Kim every 3 days. The most recent releases landed on September 17, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 7 level
IntervalTimer(x) versus Kim: the parameters behind the verdict, then further details
ParameterIntervalTimer(x)Kim
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS18.116.4 — better
Further details — not scored
Size9 MB111 MB
Age rating4+12+
DeveloperShapeHaven Innovations LLCOculi Medical

In-app purchases

None

IntervalTimer(x)

No in-app purchases

None

Kim

No in-app purchases

Questions

Is IntervalTimer(x) free?
IntervalTimer(x) is free to download, with no in-app purchases.
Is Kim free?
Kim is free to download, with no in-app purchases.
Which has better reviews, IntervalTimer(x) or Kim?
IntervalTimer(x) and Kim are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do IntervalTimer(x) or Kim have ads?
Neither IntervalTimer(x) nor Kim shows ads.
Which is updated more often, IntervalTimer(x) or Kim?
IntervalTimer(x) ships an update every 3 weeks, and Kim every 3 days. Most recently, IntervalTimer(x) was updated on September 17, 2026 and Kim on October 2, 2026.

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