VFit Studio vs Zest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VFit Studio
Plan and schedule your fitness classes directly from your device. View schedules, sign up for sessions, and stay updated with studio news and contact information. Connect with the studio's social pages for a seamless fitness experience.
- Schedule fitness classes
- Sign up for classes
- View class schedules
- Access studio news
- View contact information
- Connect to social pages
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Download the VFit Studio App today to plan and schedule your fitness classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s latest news and contact information. You can also access our social pages to stay connected! Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today! Don't forget to check out the studio's website at www.thevfitstudio.com for even more VFit Studio information.
Zest
Discover your body's internal age and receive personalized insights to slow your aging rate. This app uses at-home tests and machine learning to analyze health metrics like cardiovascular fitness and cognitive function, providing tailored recommendations for improvement.
- Measure Functional Age
- At-home health testing
- Personalized health insights
- Machine learning analysis
- Tailored recommendations
- Track aging metrics
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Ever wondered how old your body actually is on the INSIDE? Discover your Functional Age with Zest. For the first time in history, we have the tools to address aging at its core, and the science to help you to slow your rate of aging. A big part of this is tracking your body’s age on the inside and working to improve your metrics – which is where Zest comes in. Our app and simple at-home test dive deeply into your health, measuring everything from cardiovascular fitness, metabolic health, cognitive function and hormonal health. We use cutting-edge machine learning technology to analyze this data and give you an incredibly accurate measure of your Functional Age (your body’s age on the inside) which you can track and improve over time. Unlike chronological age, which simply counts years, functional age takes a holistic approach and looks at all of your body systems. How it works: 1. Unbox your at-home test: A simple finger prick and a few quick questions to get started. 2. Mail it back: We'll analyze your blood and digital biomarkers to reveal your Functional Age. 3. Results in-App: Dive into personalized insights about your body's performance. 4. Optimize your health: Get tailored recommendations to keep improving your functional age over time. Zest was built by a team of medical doctors, longevity scientists and researchers, and backed up by 100+ clinical trials. We are constantly updating and evaluating our recommendations to ensure we are consistent with the latest research. Are you ready to feel younger for longer? Let's redefine aging together. This product is not intended for diagnostic or treatment purposes and does not constitute healthcare advice. It is designed for healthy individuals to better understand their bodies and avoid future diseases. If you are concerned about any of your results in this app please contact your healthcare provider.
Screenshots
Verdict
The clearest difference is ads: Zest at none against VFit Studio's shown. Zest also leads on monetization model (free vs ad-supported). VFit Studio's advantage is ratings volume (9 vs 1) and iOS requirement (14.0 vs 16). On price, rating, update cadence and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for VFit Studio against 5.0 for Zest. That said, the two scores are not equally well evidenced: VFit Studio has 9 ratings behind it against 1, so its average is the more settled of the two.
VFit Studio ships an update every 5 weeks, Zest every 3 weeks. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.
| Parameter | VFit Studio | Zest |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) | 5.0 (1 ratings) |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 16 |
| Further details — not scored | ||
| Size | 131 MB | 23 MB |
| Age rating | 4+ | 17+ |
| Developer | VFit Studio LLC | Zest Longevity LTD |
Customer experience
VFit Studio
Zest
In-app purchases
VFit Studio
No in-app purchases
Zest
No in-app purchases









