Comparison

SweatStacks vs GEMS Study

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

Head to head
About

SweatStacks

Features
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Introducing SweatStacks, your new fitness companion. We're about making world-class fitness accessible, bringing you detailed regimens, aka "stacks", from the industry's top professionals. With SweatStacks, your personalized training plan is a tap away. We generate a training calendar for you based on proven principles of progressive overload and training periodization. We've got your exercises, sets, and reps all sorted. Plus, we've got weight recommendations in the pipeline! For our big launch, we're featuring one exceptional goal - Dr. Andrew Huberman's "Foundational Fitness Protocol". It's a game-changer and it's just the beginning. Welcome to the next level of fitness with SweatStacks. Key Features: - Weekly Training Schedule: Know your upcoming workouts and easily keep track of recently completed sessions. Our interface is designed to keep you motivated and aware of your weekly regimen. - Automated Progress: We have a built-in progressive overload feature that smartly manages your sets and reps for each exercise. This ensures you're always challenging your body to adapt and grow stronger. - Visual Demonstrations: Stay confident with your form and routines. Each exercise comes with a demonstrative gif and an option to log the weight you lift. - Detailed Training History: Stay informed about your progress. Our app provides a detailed history of each exercise, including the weight you used, the number of reps you completed, and your perceived exertion. - Personalized Training Plans: Choose your fitness goal and have a suitable training plan created for you. Whether you're aiming to build muscle, lose fat, or enhance your overall strength, we have a plan tailored just for you. - Apple Health Integration: Sync your workouts directly to the Health app

About

GEMS Study

Read full description

GEMS is designed to help people make informed choices about their health. The app is only intended for use by participants in the GEMS study. It is not intended for the general public. App activation and use requires an access code and verification of study participants’ identity. GEMS participants must install and set up the app to complete study enrollment.

Screenshots

SweatStacks4 screens
GEMS Study3 screens

Verdict

The call

The clearest difference is update cadence: SweatStacks at every 10 days against GEMS Study's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SweatStacks ships an update every 10 days, GEMS Study every 2 months. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

Scorecard1 real difference Β· 5 level
SweatStacks versus GEMS Study: the parameters behind the verdict, then further details
ParameterSweatStacksGEMS Study
PriceFreeFree
Update frequencyEvery 10 days β€” betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details β€” not scored
Size740 MB152 MB
Age rating4+17+
DeveloperOftring Ventures, LLCKaiser Permanente

In-app purchases

None

SweatStacks

No in-app purchases

None

GEMS Study

No in-app purchases

Questions

Is SweatStacks free?
SweatStacks is free to download, with no in-app purchases.
Is GEMS Study free?
GEMS Study is free to download, with no in-app purchases.
Do SweatStacks or GEMS Study have ads?
Neither SweatStacks nor GEMS Study shows ads.
Which is updated more often, SweatStacks or GEMS Study?
SweatStacks ships an update every 10 days, and GEMS Study every 2 months. Most recently, SweatStacks was updated on September 15, 2026 and GEMS Study on September 24, 2026.

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