Comparison

SuppCo vs Zest

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

Head to head
About

SuppCo

Manage and optimize your daily vitamin and supplement regimen. This app helps you build a personalized plan, track your intake, and receive expert recommendations based on your health goals. It also provides independent quality ratings for over 500 supplement brands.

Highlights
  • Personalized supplement tracking
  • Smart scheduling and reminders
  • Nutrient intake analysis
  • Supplement stack algorithm
  • Independent brand quality ratings
  • Supplement research and recommendations
  • Expert-built supplement protocols
Features
Read full description

Stay on top of your supplement routine with SuppCo, the ultimate companion and tracker for managing and optimizing your daily supplement & vitamin regimen. With a proprietary database over 160,000 supplements, SuppCo provides detailed insights to help you build, track and maintain a supplement plan that aligns with your health goals. PERSONALIZED SUPPLEMENT TRACKER: • Add the supplements you take and build your stack. • Get a smart schedule and set daily reminders so you never miss a dose. • View overall nutrient totals and how well your products support your health goals. • Track your intake so you can see how it affects your performance. STACK ANALYSIS ALGORITHM: • Get your supplement routine rated and analyzed by our proprietary algorithm. • Access recommendations on what nutrients are recommended for your age and sex, which brands you can trust, how to improve your dosages, and more. INDEPENDENT SCORING OF 500+ SUPPLEMENT BRANDS: • Our TrustScore quality rating system shows you quality ratings for 500+ brands based on 29 key attributes ranging from certifications to proprietary ingredients to testing benchmarks and manufacturing standards. • Check your supplement TrustScore, and swap brands that don't hit the mark with brands you can trust. ADVANCED SUPPLEMENT RESEARCH: • Find the best products in a given category based on our TrustScore quality rating, price per serving, and key considerations like certifications and form factor. • We are not affiliated with any supplement brand and bring you real supplement search in a world of confusing information. 80+ SUPPLEMENT PROTOCOLS FOR TARGETED HEALTH GOALS: • Not sure what to take to hit your goals? Access expert-built plans with nutrient recommendations to achieve your health goals. • Find every supplement plan, all in one place, ranging from essential plans for women and men of every age group to gut health, stress, longevity and more. Terms of Use: https://supp.co/about/terms-of-use

About

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.

Highlights
  • Measure Functional Age
  • At-home health testing
  • Personalized health insights
  • Machine learning analysis
  • Tailored recommendations
  • Track aging metrics
Read full description

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

SuppCo4 screens
Zest4 screens

Verdict

The call

The clearest difference is in-app purchases: Zest at none against SuppCo's 5. SuppCo's advantage is ratings volume (31K vs 1) and chart position (#58 vs unranked). On price, rating, update cadence 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. SuppCo sells 5 in-app purchases, starting at $39.99 per year. Zest asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Zest holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: SuppCo has 31K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

SuppCo ships an update every 6 weeks, Zest every 3 weeks. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 6 level
SuppCo versus Zest: the parameters behind the verdict, then further details
ParameterSuppCoZest
PriceFreeFree
Rating4.8 (31K ratings)5.0 (1 ratings) — better
Positive reviews59.9% of reviews—
Number of ratings31K — better1
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#58 — better—
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.0 — better16
Further details — not scored
Size60 MB23 MB
Age rating17+17+
DeveloperSupple Stack IncZest Longevity LTD

Customer experience

SuppCo

All ratings30,289 ratings
Positive96.4%
Neutral1.8%
Negative1.7%
Written reviews466 reviews
Positive59.9%
Neutral8.6%
Negative31.5%

Zest

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

Bugs and requests

SuppCo

Reported bugs

2 issues
  • Login screen freezes
  • Incompatible with older devices

Requested features

3 requests
  • Ability to save multiple supplement stacks
  • Option to manually specify supplement contents
  • Crowd-sourcing to ensure data accuracy

Zest

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

SuppCo

Subscriptions5
  • SuppCo Pro Membership1 Year trial$39.991 Year
  • SuppCo Pro Membership$39.991 Year
  • SuppCo Pro Membership1 Year trial$59.991 Year
Show 2 more
  • SuppCo Buying Club Membership7 Days trial$119.991 Year
  • SuppCo Buying Club Membership$119.991 Year
None

Zest

No in-app purchases

Questions

Is SuppCo free?
SuppCo is free to download, with in-app purchases available.
Is Zest free?
Zest is free to download, with no in-app purchases.
Which has better reviews, SuppCo or Zest?
Zest is rated higher. SuppCo averages 4.8 out of 5 from 31K ratings, while Zest averages 5.0 from 1 ratings.
Do SuppCo or Zest have ads?
Neither SuppCo nor Zest shows ads.
Which is updated more often, SuppCo or Zest?
SuppCo ships an update every 6 weeks, and Zest every 3 weeks. Most recently, SuppCo was updated on October 22, 2026 and Zest on October 10, 2026.

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