Comparison

Kettlebell Interval Timer vs Kettlebell Lab

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

Head to head
About

Kettlebell Interval Timer

Create and run custom interval workouts for various training styles. This app offers a fully offline experience with no ads or subscriptions, allowing you to tailor work, rest, and set counts for each exercise. Track your progress and manage your workout library with ease.

Highlights
  • Build custom workouts with unlimited exercises
  • Set work, rest, and set counts per exercise
  • Rep-based exercise support
  • Visual countdown timer
  • Play, pause, skip, and reset during sessions
  • Session history tracking
  • Fully offline functionality
Features
Read full description

KB Timer is a free, fully offline interval timer that lets you build and run custom workouts tailored to your training style. No ads, no subscriptions, no account required. Create workouts with multiple exercises, each with its own work duration, rest period, and set count. Set a single timer template for the whole workout or override timing on a per-exercise basis. Whether you're swinging kettlebells, running circuits, doing HIIT, or following a stretching routine — KB Timer adapts to your flow. KEY FEATURES - Build custom workouts with unlimited exercises - Set work, rest, and set counts per exercise or per workout - Rep-based exercise support for count-based movements - Visual countdown timer with ring or bar progress display - Play, pause, skip, and reset during sessions - Prep countdown to get set before each exercise - Session history to track completed workouts - Duplicate, favorite, and organize your workout library - Fully offline — no account, no internet required DESIGNED FOR - Kettlebell training (swings, snatches, cleans, complexes) - HIIT and circuit workouts - Stretching and mobility routines - Any interval-based training All your data stays on your device. No accounts, no cloud sync, no tracking, no ads. Just a fast, focused timer that works the way you train — completely free.

About

Kettlebell Lab

This app offers personalized kettlebell training with expert-designed programs and customizable workout builders. Track your progress, heart rate with Apple Watch, and utilize various interval training modes. Access a comprehensive exercise library for effective strength building.

Highlights
  • 36 expert-designed programs
  • Custom multi-week plan builder
  • Quick workout options
  • Tabata and HIIT modes
  • Apple Watch heart rate tracking
  • Exercise library with videos
  • Live Activity for Lock Screen tracking
Features
Read full description

Kettlebell Lab is a personalized training app built specifically for kettlebell workouts. Follow any of the 36 expert-designed programs, build your own multi-week plan, or jump into a quick workout. Kettlebell Lab keeps your training organized and your progress on track, all with built-in Apple Watch heart rate tracking. FEATURED PROGRAMS & WORKOUTS (Premium) Skip the planning and start training with a library of expert-designed kettlebell training: • Multi-week featured programs for every level, ranging from 3 to 20 weeks. • Ready-to-go pre-made workouts you can start in seconds. • A range of training styles using single bells, double bells, and bodyweight. QUICK WORKOUTS Pick your exercises, set your weights, and go. Choose your workout format: • Standard — classic sets and rest • Circuit — rounds with multiple exercises • TABATA — high-intensity interval training with a built-in timer Create workouts with nearly every possible kettlebell feature, including EMOM interval timers, AMRAP and AMSAP blocks, laddered sets, and many more. Tap the info button beside any format to see exactly how it runs. TABATA MODE Turn any circuit into high-intensity interval training: • Set your own work interval, rest interval, and round count (20 seconds on, 10 seconds off, 8 rounds by default). • Give every round its own exercise or cycle a single exercise through the whole block. • A spoken count-in and interval cues keep you moving without watching the screen. • Follow the countdown on Apple Watch and from your Lock Screen. PROGRAM BUILDER (Premium) Design structured multi-week kettlebell programs tailored to your goals: • Set weekly schedules with repeating, alternating, or fully custom week patterns. • Configure automatic weight and rep progression, including linear or custom per day. • Add ascending and descending rep ladders for advanced training. • Build Tabata, EMOM, AMSAP, and AMRAP work into any training day. • Manage multiple programs and switch between them. APPLE WATCH HEART RATE Pair with Apple Watch to track heart rate throughout every workout. View live HR, average, and max during your session, then review detailed heart rate charts in your workout history. Log AMRAP reps and follow your Tabata intervals right from your wrist. EXERCISE LIBRARY Browse a complete kettlebell exercise glossary with categories for grinds, ballistics, carries, core work, combos, and complexes. Many exercises include video demonstrations and technique explanations. TEMPLATES (Premium) Save any workout or entire program as a reusable template. Load templates to quickly set up new workouts or programs without rebuilding from scratch. LIVE ACTIVITY Track your workout from the Lock Screen and Dynamic Island. See your current exercise, set count, and timer without opening the app, and even pause or resume without unlocking. Audio cues keep coming while your phone is locked, and your workout pauses automatically for a call, Siri, or an alarm. STATS & HISTORY Review every completed workout with detailed session logs. Premium unlocks heart rate charts, exercise history trends, and program progress analytics. MORE FEATURES • Configurable warm-up and cool-down timers • Workout reminders on your schedule • Sound effects and voice announcements • Dark mode • iCloud sync across devices PREMIUM Start with a 7-day free trial, then keep Premium with a monthly or yearly subscription. Due to numerous requests, we now offer a one-time Lifetime purchase. Download Kettlebell Lab and start training today. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Lifetime access is a one-time purchase with no auto-renewal. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://multifidus.github.io/kettlebell-lab-privacy/privacy-policy

Screenshots

Kettlebell Interval Timer4 screens
Kettlebell Lab4 screens

Verdict

The call

The clearest difference is in-app purchases: Kettlebell Interval Timer at none against Kettlebell Lab's 3. 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. Kettlebell Lab sells 3 in-app purchases, starting at $4.99 per month. Kettlebell Interval Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Kettlebell Interval Timer against 5.0 for Kettlebell Lab. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard2 real differences · 8 level
Kettlebell Interval Timer versus Kettlebell Lab: the parameters behind the verdict, then further details
ParameterKettlebell Interval TimerKettlebell Lab
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.0 — better18.0
Further details — not scored
Size2 MB20 MB
Age rating4+4+
DeveloperJack DriscollAnatomical Consulting LLC

Customer experience

Kettlebell Interval Timer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Kettlebell Lab

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kettlebell Interval Timer

No in-app purchases

3 purchases

Kettlebell Lab

Subscriptions2
  • Kettlebell Lab Premium7 Days trial$4.991 Month
  • Kettlebell Lab Premium7 Days trial$39.991 Year
One-time1
  • Lifetime Access$79.99

Questions

Is Kettlebell Interval Timer free?
Kettlebell Interval Timer is free to download, with no in-app purchases.
Is Kettlebell Lab free?
Kettlebell Lab is free to download, with in-app purchases available.
Which has better reviews, Kettlebell Interval Timer or Kettlebell Lab?
Kettlebell Interval Timer and Kettlebell Lab are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Kettlebell Interval Timer or Kettlebell Lab have ads?
Neither Kettlebell Interval Timer nor Kettlebell Lab shows ads.

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