Comparison

HIIT | Down Dog vs Kairos

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

Head to head
About

HIIT | Down Dog

This app offers dynamic, personalized HIIT workouts with over 1000 exercises to prevent plateaus. Customize workout length, intervals, and focus areas, with options to exclude specific movements. Enjoy motivating music and coach voices, with seamless syncing across devices.

Highlights
  • Over 1000 unique exercises
  • Customizable workout length and intervals
  • Selectable exercise focus areas
  • Exclude unwanted exercises
  • Dynamic music matching workout pace
  • Choice of coach voices
  • Syncs across devices
Features
Read full description

With pre-recorded videos, you get bored, and so do your muscles! Avoid the dreaded workout plateau and get ripped with HIIT. With over 1000+ different exercises, you’ll never get the same workout twice! BEGINNER FRIENDLY If you’re brand new to HIIT, Level 0 is the perfect place to start! Use your own body weight to get your heart rate up and efficiently burn fat while building muscle - no fancy props required. Our high definition videos and clear instructions guide you through each HIIT exercise. It’s like having your own personal trainer! BUILD THE WORKOUT YOU WANT Set the total length of your workout Tailor the length of your Exercise Length and Recovery intervals Choose from 4 different levels of Upper Body, Lower Body, and Core to get exercises that challenge you MIX FEATURE Choose from presets like Leg Day, Cardio Killer, Total Body - No Jumps, or our favorite, Bringing Sexy Back, or create your own mix of aerobic, core, glutes, legs and upper body Exclude exercises that don’t work for you: Sore wrists? Say goodbye to table tops and planks. Tired of burpees? No problem, you’ll never have to hop back again. DYNAMIC CHANGING MUSIC Pick the type of music that gets you hyped, and we supply beats that match your movement and help you push hard to the last second of each interval. CHOOSE YOUR VOICE Select your favorite coach to keep you motivated as you sweat. SYNC BETWEEN DEVICES Automatically syncs across all your devices. Integrates with the Apple Health app! Down Dog's terms and conditions can be found at https://www.downdogapp.com/terms Down Dog's privacy policy can be found at https://www.downdogapp.com/privacy

About

Kairos

Features
Read full description

Kairos is the strength and gym tracker for people who just want to train — not manage a subscription. One purchase. Yours forever. No subscription, no ads, no account, no cloud. Everything lives on your device. --------------- COACH MODE — YOUR VOICE-GUIDED SESSION Press start and train. Coach Mode walks you through every set and rest, block by block, with a live timer and automatic rest countdowns — so your eyes stay on the bar, not the screen. LOG FAST, MISS NOTHING Tap in weight and reps in seconds. Full workout history, forever, with no limits on what you can look back on. SEE YOURSELF GET STRONGER Every personal record is celebrated the moment you hit it. Track trends, volume, and progress across your whole training history. REAL PROGRAMS, READY TO GO Start with structured Push/Pull/Legs and full-body plans, or build your own. 650+ built-in exercises with clear animated demonstrations and muscle-activation maps. SHARE THE WIN Turn any finished session into a clean, shareable card — your volume, your exercises, your PRs. BUILT FOR COACHES Build programs and hand them to clients as a single file. Your athletes import and train — no accounts, no platform in the middle. --------------- WHAT MAKES KAIROS DIFFERENT • FULLY OFFLINE — works with no signal, anywhere • ON YOUR DEVICE — all data stored locally, nothing uploaded • NO ACCOUNT — open the app and train, no sign-up • NO ADS, NO TRACKING — we don't collect your data • PAY ONCE — a one-time purchase, never a subscription Try everything free for 14 days. After that, keep Kairos free forever with the essentials, or unlock every feature once with Kairos Lifetime. No charge at the end of the trial. Nothing to cancel. Train the moment.

Screenshots

HIIT | Down Dog4 screens
Kairos4 screens

Verdict

The call

HIIT | Down Dog and Kairos are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. HIIT | Down Dog sells 5 in-app purchases, starting at $12.99 per month and Kairos sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
HIIT | Down Dog versus Kairos: the parameters behind the verdict, then further details
ParameterHIIT | Down DogKairos
PriceFreeFree
Rating4.9 (48K ratings) — better—
Positive reviews89.1% of reviews—
Number of ratings48K — better—
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size101 MB190 MB
Age rating4+4+
DeveloperYoga Buddhi Co.Pawin Peetawan

Bugs and requests

HIIT | Down Dog

Reported bugs

3 issues
  • App freezing and crashing
  • Connectivity problems
  • Inconsistent workout experiences

Requested features

6 requests
  • Preview of upcoming exercises
  • Warm-up and cool-down options
  • Ability to exclude certain exercises
  • More detailed exercise instructions and form cues
  • Offline workout downloads
Show 1 more
  • Integration with fitness tracking devices

Kairos

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

HIIT | Down Dog

Subscriptions5
  • HIIT Subscription$12.991 Month
  • All Access Subscription2 variants$12.991 Month
  • HIIT Subscription$99.991 Year
Show 2 more
  • All Access Subscription3 variants$99.991 Year
  • All Access Subscription$119.991 Year
1 purchases

Kairos

One-time1
  • Kairos Lifetime$19.99

Questions

Is HIIT | Down Dog free?
HIIT | Down Dog is free to download, with in-app purchases available.
Is Kairos free?
Kairos is free to download, with in-app purchases available.
Do HIIT | Down Dog or Kairos have ads?
Neither HIIT | Down Dog nor Kairos shows ads.

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