OSTEO vs 3DFIT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OSTEO
This program offers a 52-week exercise plan designed to strengthen bones, particularly for pre-menopausal women. It includes pre-conditioning, stretching, and progressive osteogenic exercises performed at home.
- 52-week bone health program
- Pre-conditioning exercises
- Stretching routines
- Progressive osteogenic exercises
- Home-based workouts
- Impact tracking
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You can build and strengthen your bones with our OSTEO-GAINS Bone Health Program Year One. Proven for pre-menopausal women from 31-50 years of age to effectively stimulate bone to benefit your hips and lumbar spine over 52-weeks. The OSTEO-GAINS Bone Health Program Year One costs US$24.99 for 12-months access. No free trial is offered with the Bone Health Program. Once you download and register for the App, you get FREE access to the Pre-Conditioning Program and FREE access to the Stretching Program. Future access, e.g., Bone Health Year One or Bone Health Year Two, will require manual separate payments of US$24.99 for Year One or $28.99 for Year Two. Subscriptions do not auto-renew annually. ONE: Prepare Start with our OSTEO-GAINS Pre-Conditioning Program for the first 4 weeks. You will repeat each session (approximately 23-24.5 minutes) 3 times each week to get your body ready for the OSTEO-GAINS Bone Health Program. Complete the 12 sessions over one month before purchasing the OSTEO-GAINS Bone Health Program. TWO: Stretch Perform the OSTEO-GAINS Stretching Program (approximately 14-14.5 minutes) after every Pre-Conditioning session to help your muscles recover, or use the Stretching Program as often as you like. THREE: Perform The OSTEO-GAINS Bone Health Program Year One is performed barefooted on a firm and forgiving surface, such as carpet, grass, wooden floors or sand and works in 4-week blocks. You repeat the same session for 4 weeks before progressing to the next new 4-week block. The OSTEO-GAINS Bone Health Program Year One is designed to be progressive and repetitive. This program includes osteogenic exercises that take approximately 3-5 minutes a day, and you can do them in the comfort of your own home ... while you wait for the kettle to boil. In the OSTEO-GAINS Bone Health Program Year One, you will be guided through a structured exercise program that becomes progressively more difficult over 12-months. In the Bone Health Program Year One, you will 'Jump, Jump, Rest, Repeat' to strengthen your bones 2-5 times each week, using a series of specific jumps and jump-landings. Our research found that bone health in premenopausal women improved (3.5 to 5% at the end of 12-months) when they performed the exercises, taking only 3-5 minutes a day. Our research informed how we structured our 12-month OSTEO-GAINS Bone Health Program Year One. We measured improved compliance and technique, which led to significant lower body bone health improvements in our research participants. The OSTEO-GAINS Bone Health Programs are a supplementary osteogenic exercise program to specifically target bone health and can be performed alongside your regular exercise programs. PROGRESS Keep track of your landings/impacts progress over 52 weeks. DEXA Scan We recommend, where possible, getting a DEXA scan done before you start our OSTEO-GAINS Bone Health Program Year One. This will provide a benchmark measure of your current bone health and the ability to track any changes in your bone health over time.
3DFIT
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Description: Transform your fitness journey with the Kahuna Personal Trainer app, your ultimate guide to achieving peak performance, a sculpted physique, and a healthier lifestyle. Designed by Damar Turner, a Master Trainer, IFBB Pro Bodybuilder, Online Coach, and Posing Specialist, this app offers everything you need to reach your fitness goals—no matter your experience level. Key Features: • Personalized Training Plans: Tailored workouts designed to match your fitness level, goals, and schedule, from beginner to advanced athletes. • Customized Nutrition Plans: Get meal plans crafted to fuel your body, optimize performance, and support your fitness journey. • Contest Prep Coaching: Preparing for a bodybuilding competition? Access expert guidance in posing, nutrition, and peak week strategies to dominate the stage. • Posing Tutorials: Perfect your routine with step-by-step guidance on posing, whether you’re a competitive athlete or looking to improve your stage presence. • Lifestyle Coaching: Balance fitness with everyday life. Whether you’re working toward weight loss, strength building, or overall wellness, this app keeps you on track. • Progress Tracking: Stay motivated with detailed progress charts and performance analytics. • One-on-One Support: Get expert advice and 24/7 support from Damar Turner himself, ensuring you always have the help you need. Who Is This App For? • Fitness enthusiasts aiming to improve strength, endurance, or aesthetics. • Competitive bodybuilders seeking expert coaching and posing practice. • Veterans, military personnel, and first responders looking for specialized coaching. • Anyone striving to build a healthier lifestyle with the guidance of a proven professional. Whether you’re preparing for a competition or embarking on your fitness journey, the Kahuna Personal Trainer app is your all-in-one tool for success. Download now and let Damar Turner guide you every step of the way! Achieve. Transform. Dominate. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy Medical Disclaimer: This app does not provide medical advice, diagnoses, or treatment. The information and guidance provided within the app are for general fitness and wellbeing purposes only. Always seek the advice of your physician or other qualified healthcare provider before starting any exercise program, changing your nutrition, or making decisions regarding your health.
Screenshots
Verdict
The clearest difference is in-app purchases: 3DFIT at none against OSTEO's 3. On price, ads, device support and iOS requirement 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
Both are free to download. OSTEO sells 3 one-off in-app purchases. 3DFIT asks for nothing beyond the download.
| Parameter | OSTEO | 3DFIT |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (45 ratings) — better | — |
| Positive reviews | 36.2% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Every 8 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 59 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | OSTEO-GAINS LTD | Damar turner |
Bugs and requests
OSTEO
Reported bugs
13 issues- App crashes or won't open
- Login issues (email/account not recognized)
- Purchased app doesn't allow login
- Cannot create a login
- App freezes or doesn't progress
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- Videos not playing or loading
- Workouts not showing as complete
- Upgrade causes loss of access
- Intro video stuck, cannot exit
- Dio exception errors
- Jumps counter not working
- Manual entry required for signup
- Charged but no access to programs
Requested features
8 requests- Add 'get ready' verbal cues
- Calendar-style progress dashboard
- Verbal instructions for exercises
- Option to skip intro videos
- Countdown feature without volume
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- Default to previous session
- More intuitive layout
- Free intro exercise
3DFIT
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OSTEO
- 12-Month Plan$14.99
- 12-Month Plan$24.99
- Year Two Plan$28.99
3DFIT
No in-app purchases









