Comparison

Keep Trainer vs HydrateMii

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

Head to head
About

Keep Trainer

This app offers a comprehensive fitness coaching experience with a vast library of exercises and expert-designed workout routines. It provides personalized training plans, video guidance, and options for all fitness levels, allowing users to achieve their health and fitness goals at home.

Highlights
  • 400+ exercises database
  • 100+ expert-designed workouts
  • Video guidance from trainers
  • Personalized training plans
  • Workouts for all levels
  • Bodyweight exercises
  • Apple TV app support
Features
Read full description

Keep Trainer is your AI fitness coach for gym and home training. • AI Personalized workout plans — gym or bodyweight, beginner to advanced • Log sets, reps & weights — see your strength progress over time • 3D exercise demos — clear form for every movement • Target muscle groups: legs, glutes, abs, full body & more Whether you're building muscle, burning fat, or starting your fitness journey — train with structure, track with clarity. Free download. Premium unlocks advanced plans & AI coaching. Keep Training, Keep Fit. If you want to get healthier, lose weight, tone up, gain muscle, try Keep - Your Personal Fitness Coach. Get stronger, leaner, healthier with Keep with Fat burning and muscle gaining exercise -- HIIT and Cardio, Ab ripper workout, Legs Glutes toning, abs training, body weight and weight training exercises for toning, strength training, slimming, more muscle-focused workouts and full body workouts.  Smart workouts for home and gym training Optimize your training results wherever you work out. Keep Trainer helps you build muscle, lose fat, and train more efficiently with personalized workout plans designed for both gym and home environments. Train with structure, clarity, and intelligence. Whether you are lifting weights at the gym or doing bodyweight workouts at home, Keep Trainer adapts to your goals, equipment, and progress—so every workout works. Key Features • Guided gym and home workout plans • AI-powered trainer acting as your personal fitness coach • Adaptive workout plans based on your environment and equipment • Workout and exercise tracking • Effective workouts for strength, muscle growth, and fat loss • Target specific muscle groups with structured routines Workout Plans • Personalized workouts based on your fitness goals • Smart planner builds workouts for both gym and home training • Home workouts using bodyweight or minimal equipment • Progressive training plans that evolve over time • Beginner, intermediate, and advanced workout levels • Support for supersets and structured training blocks • Customize any workout to match your preferences • Create and log your own workouts and exercises Exercises • High-quality 3D exercise demonstrations and visual guidance • Clear muscle activation and movement mechanics • A comprehensive exercise library for gym and home training • Detailed, easy-to-follow instructions • Filter exercises by muscle group, equipment, or keyword • Save your favorite exercises for quick access Smart Training Insights • Track sets, reps, and weights effortlessly • Visualize your training history and progress • Gain actionable feedback to improve consistency and performance Health Integration • Integrates with Apple Health to use age, height, and weight data • Helps create more accurate and personalized workout plans Train Anywhere. Train Smarter. For terms & privacy details, please refer to Privacy Policy:https://www.keepkeep.com/privacy Terms of Use:https://www.keepkeep.com/tos

About

HydrateMii

Features
Read full description

Track, Plan & Achieve Your Perfect Hydration! Set personalized daily goals, log beverages, and watch your progress with beautiful bottle animations. Widgets let you monitor hydration right from your home screen and lock screen. Start building healthier habits today!

Screenshots

Keep Trainer4 screens
HydrateMii4 screens

Verdict

The call

The clearest difference is in-app purchases: HydrateMii at none against Keep Trainer's 12. Keep Trainer's advantage is update cadence (every 2 weeks vs every 4 weeks) and device support (5 vs 1). On price 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. Keep Trainer sells 10 in-app purchases, starting at $9.99 per 7 days. HydrateMii asks for nothing beyond the download.

UpkeepUpdate frequency

Keep Trainer ships an update every 2 weeks, HydrateMii every 4 weeks. The most recent releases landed on October 28, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Keep Trainer versus HydrateMii: the parameters behind the verdict, then further details
ParameterKeep TrainerHydrateMii
PriceFreeFree
Rating4.8 (14K ratings) — better—
Positive reviews86.3% of reviews—
Number of ratings14K — better—
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple TV, Apple Watch — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size40 MB3 MB
Age rating12+17+
DeveloperCalorie Tech Ltd.Jason McRainey

In-app purchases

10 purchases

Keep Trainer

Subscriptions8
  • Weekly7 Days trial2 variants$9.997 Days
  • Weekly Prenium$9.997 Days
  • Monthly$9.991 Month
Show 5 more
  • Monthly$14.991 Month
  • Workouts for All Levels2 variants$19.991 Month
  • Get Your Personal Coach7 Days trial$29.991 Year
  • Workouts for All Keep Levels$39.991 Year
  • Get Your Personal Coach$49.991 Year
One-time2
  • Coke$1.99
  • Hamburger$4.99
None

HydrateMii

No in-app purchases

Questions

Is Keep Trainer free?
Keep Trainer is free to download, with in-app purchases available.
Is HydrateMii free?
HydrateMii is free to download, with no in-app purchases.
Do Keep Trainer or HydrateMii have ads?
Neither Keep Trainer nor HydrateMii shows ads.
Which is updated more often, Keep Trainer or HydrateMii?
Keep Trainer ships an update every 2 weeks, and HydrateMii every 4 weeks. Most recently, Keep Trainer was updated on October 28, 2026 and HydrateMii on October 15, 2026.

Other comparisons