StackLab: Supplement Tracker
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About this app
Stop guessing whether your supplements do anything. StackLab runs structured A/B tests on your own body, so you get real evidence instead of one more influencer opinion.
HOW IT WORKS
Pick a test (or build your own), then alternate between two conditions across your workouts: with pre-workout vs without, morning creatine vs evening, fed vs fasted. After each session you rate four things in about five seconds: strength, energy, pump, and focus. Once you have enough sessions, StackLab runs the numbers and gives you a verdict, including "no measurable difference" when that is the honest answer.
BUILT ON YOUR OWN DATA
Connect Health Connect and StackLab auto-imports your workouts, sleep, and resting heart rate. It flags sessions where bad sleep or an off day could have skewed the result, so you can tell a real effect from noise.
WHAT YOU GET
- Two-condition experiments with clear per-metric results and a percentage difference
- Confidence scores and a plain next step for every verdict
- A rolling performance score and a weekly digest
- A supplement log with a research-backed evidence rating for each one
- Label scanning to add a supplement from a photo
- Daily reminders and a home-screen widget for what is still due today
PRIVATE BY DESIGN
Everything stays on your device. No account, no cloud sync, no tracking. Your health data never leaves your phone.
FREE VS PREMIUM
Free includes one active experiment, supplement logging, Health Connect import, the five-second check-in, and early trends. Premium unlocks unlimited experiments, the custom builder, the full insight engine, sleep correlations, and the complete history.
Not medical advice. Supplements are not evaluated by the FDA. Talk to your doctor before starting any supplement, especially if you have a medical condition or take medication.
HOW IT WORKS
Pick a test (or build your own), then alternate between two conditions across your workouts: with pre-workout vs without, morning creatine vs evening, fed vs fasted. After each session you rate four things in about five seconds: strength, energy, pump, and focus. Once you have enough sessions, StackLab runs the numbers and gives you a verdict, including "no measurable difference" when that is the honest answer.
BUILT ON YOUR OWN DATA
Connect Health Connect and StackLab auto-imports your workouts, sleep, and resting heart rate. It flags sessions where bad sleep or an off day could have skewed the result, so you can tell a real effect from noise.
WHAT YOU GET
- Two-condition experiments with clear per-metric results and a percentage difference
- Confidence scores and a plain next step for every verdict
- A rolling performance score and a weekly digest
- A supplement log with a research-backed evidence rating for each one
- Label scanning to add a supplement from a photo
- Daily reminders and a home-screen widget for what is still due today
PRIVATE BY DESIGN
Everything stays on your device. No account, no cloud sync, no tracking. Your health data never leaves your phone.
FREE VS PREMIUM
Free includes one active experiment, supplement logging, Health Connect import, the five-second check-in, and early trends. Premium unlocks unlimited experiments, the custom builder, the full insight engine, sleep correlations, and the complete history.
Not medical advice. Supplements are not evaluated by the FDA. Talk to your doctor before starting any supplement, especially if you have a medical condition or take medication.
Run A/B tests on your supplements with your own workout data. See what works.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesApp activity, App info and performance, and Device or other IDs
- Data is encrypted in transit
- Data can’t be deleted
What’s new
The first Android release of StackLab. Run structured A/B tests on your supplements against your own workout data, and see what actually works.
App support
About the developer
Bigballi Consulting LLC
GooglePlay@BigBalli.com
89 Duncan St
San Francisco, CA 94110-4407
United States
+1 415-805-2445
