Short answer: the best supplement app for an athlete depends on the job. To check whether a product is certified, use a certifier's app (NSF Certified for Sport or Informed Sport) or Varsity Stack. To track what you take and get recommendations built around your sport, use Varsity Stack. To track food and nutrients, use Cronometer or MyFitnessPal. If your team runs nutrition through Teamworks, use its app for meal plans. We make Varsity Stack, so weigh our pick with that in mind; every other claim below comes from the app's own page.
Supplement apps for athletes at a glance
| App | Best for | What its own page says it does | What it is not |
|---|---|---|---|
| Varsity Stack | Athletes who want checks, tracking and recommendations in one place | Barcode and label scan, certification database, personalized recommendations, stack logging, streaks, adherence history; free | Not a food or calorie tracker |
| NSF Certified for Sport app | Checking NSF Certified for Sport products | Search certified products by product type or goal; UPC barcode scanning [2] | Covers one program. Not a log of what you take |
| Informed Sport app | Checking Informed Sport products and batches | Barcode scanning; search by brand, product, batch or lot number; view tested lots [3] | Covers one program. Not a log of what you take |
| Cronometer | Seeing nutrient gaps before you add a supplement | Tracks up to 95 nutrients and compounds; barcode scanner; syncs with devices [4] | Not built to check banned substance risk |
| MyFitnessPal | Simple calorie and macro tracking | Calorie and macro tracking; barcode scan; photo meal logging [5] | Not built to check supplement certification |
| Teamworks Nutrition | Teams with a dietitian running meal plans | Meal plans, food logging with photos and barcodes, inventory, one app for staff and athletes [6] | Made for organizations, not individual athletes |
What should a supplement app do for a drug tested athlete?
Most supplement apps are built for general wellness. Search an app store for "supplement app" and most results describe schedules, reminders, ingredient databases and quality ratings. Those are useful, but a drug tested athlete has a different problem.
The NCAA warns that supplements "may be contaminated with banned substances not listed on the label" and makes it the athlete's responsibility to check with athletics staff before using any substance [1]. USADA says no supplement "can be guaranteed to be 100 percent risk-free" and tells athletes who use them to choose products certified by a third party program [7]. So a tested athlete's app has four jobs:
- Check certification against a banned substance testing program, for the exact product.
- Record the exact product you take, not just "protein" or "creatine".
- Track what you actually use, so the record matches reality.
- Let your staff see it, because the NCAA expects you to check with them [1].
No single app on this list does all four in the same way. That is why many athletes use two.
Is a supplement rating the same as a certification?
No. A score or grade in a general supplement app is that app's opinion of the product. A certification means a banned substance testing program tested the product and lists it. Only the second answers the drug testing question, and even then the NCAA says "complete elimination of risk is impossible" [1].
Our certification comparison explains how NSF Certified for Sport, Informed Sport and BSCG differ.
Varsity Stack: checks, tracking and recommendations together
Best for: athletes who want one app to check products, track their stack and get recommendations built around their sport.
We make Varsity Stack, so this is our own product. Here is what it does:
- Scan before you buy. Scan a barcode, or photograph the packaging: the app reads it, discards the image and asks you to confirm.
- Check certification. One scan is matched against current NSF Certified for Sport, INFORMED and BSCG Certified Drug Free records. Going by each app's own page, it is the only app in this comparison that checks more than one certification program [2][3][4][5][6]. A "no match" means the product is not in the programs we check, which does not necessarily mean it is uncertified.
- Get personalized recommendations by sport, position, training block and goals. Each one links to a specific certified product.
- Log your stack, keep a streak and see your adherence history.
- Free. No subscription and no paywall.
What it is not: a food tracker. It does not count calories or nutrients. It also does not laboratory test supplements.
For teams, the staff dashboard shows every athlete's stack, certification status and the full ingredient panel, and staff approve or reject what athletes scan for the roster.
NSF Certified for Sport app: checking NSF products
Best for: athletes who want to look up NSF Certified for Sport products quickly.
NSF's app page says it helps you "find tested, safer sports supplements" and offers UPC barcode scanning and search "by product type or by goal" [2]. USADA recognizes NSF Certified for Sport as the program best suited for athletes to reduce supplement risk [7].
What it is not: a record of what you take. Its page describes search and scanning, not a daily log [2]. It also covers only NSF's program, so a product certified by another program will not appear. Our NSF guide explains what the mark means.
Informed Sport app: checking batches
Best for: athletes who want to confirm the exact batch they hold.
INFORMED's app page lists a barcode scanner for UPC and EAN codes and search "by brand name, product name, batch or lot number, or product type", and says you can "view and confirm tested product lots" [3]. Checking the batch matters because supplement safety depends on the exact product you hold, not just the brand.
What it is not: a tracker or a planner. Like the NSF app, it covers its own program only. Our Informed Sport guide explains the program.
Cronometer: nutrient gaps before supplements
Best for: athletes who want a detailed picture of their diet.
Cronometer's home page says it can "track up to 95 different nutrients and compounds", offers a free barcode scanner and syncs with wearable devices [4]. Seeing what your food already provides is a sensible step before buying a supplement.
What it is not: a banned substance tool. It does not check certification.
MyFitnessPal: basic macro tracking
Best for: athletes who want a simple calorie and macro log.
MyFitnessPal describes calorie and macro tracking, barcode scanning for packaged foods and Meal Scan, which logs a meal from a photo [5]. It has a free account and a paid Premium tier [5].
What it is not: a supplement safety app. Our Varsity Stack vs MyFitnessPal comparison goes further.
Teamworks Nutrition: team meal plans
Best for: college and professional programs whose dietitians already use it.
Teamworks describes meal plan creation, food logging "with picture uploads and barcode scanning", inventory management and one app that connects staff and athletes [6]. It is built for dietitians working with teams, so athletes usually get it through their program.
What it is not: a tool for an individual athlete to check and track a personal supplement stack. Varsity Stack works alongside platforms like Teamworks; see how the two fit together.
Which supplement app should you use?
- You only need to check a product: a certifier's app if you already know which program certifies it, or Varsity Stack, which checks all three programs in one scan.
- You take several supplements and get drug tested: Varsity Stack, so the exact products and your use are on record. Our supplement tracker guide lists what that record should hold.
- You want to know whether you need a supplement at all: Cronometer or MyFitnessPal for your food first.
- Your team uses Teamworks: keep using it for meal plans, and pair it with a supplement tool.
- You prefer paper: our printable supplement log works too.
FAQ
Can an app guarantee a supplement will not cause a positive test?
No. Certification lowers the risk, and the NCAA says "complete elimination of risk is impossible" [1]. Check with your athletics staff before you use any product.
Is there an app that checks all certification programs?
Each certifier's app covers its own program [2][3]. Varsity Stack checks products against our certification database, which includes NSF Certified for Sport, INFORMED and BSCG records.
Are these apps free?
Varsity Stack is free with no paywall. Cronometer and MyFitnessPal offer free versions with paid upgrades [4][5]. Teamworks Nutrition is built for organizations rather than individual athletes [6].
Check your supplements with Varsity Stack
The fastest way to check a supplement is the free Varsity Stack app. Scan the barcode or snap a photo of the label, and Varsity Stack checks it against our certification database before you buy. Then log it with the rest of your stack, so you and your staff always know what you are taking.
For coaches, sports dietitians and athletic trainers: the team dashboard shows every athlete's stack, the certification status of each product and its full ingredient panel. Athletes scan what they buy, and staff approve or reject it for the roster. Request access for your program.
Varsity Stack does not laboratory test supplements, and certification lowers risk without removing it.
This article is for educational purposes only. Consult a qualified healthcare provider or registered dietitian before starting any supplement regimen.
