Comparison

AcornSleep vs SweatStacks

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

Head to head
About

AcornSleep

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Welcome to AcornSleep, a custom R90 sleep cycle recording tool based on Sleep by Nick Ritterhales, a better way to improve sleep and redefine rest. 8 hours is actually the average sleep time per person per night, but it is not a generally applicable recommended sleep time. Blindly chasing 8 hours and creating a lot of pressure has a very destructive and counterproductive effect on sleep. We need different sleep hours from person to person. No supplements, new mattresses or equipment are required. All it takes is your smartphone, plus our AI-powered software to work with you to come up with customized tips and recommendations to personalize your sleep journey for better rest. 4 Reasons You'll Love Sleep Cycle. 1. Total Privacy - AutoSleep has no user analytics tracking, No third-party code, No data uploaded. 2. Abundant Customization Tips - A large number of rest suggestions customized for you based on your sleep cycle registration information, daily schedule and mobile phone usage frequency. 3. No additional equipment - Just turn on your phone every morning and record how you slept last night, the AI assistant will provide you with customized advice. 4. More Ambient Noise for Sleep - Ability to make your own personal mix of sounds so you get just the right amount of ambient noise. A good night's sleep isn't always easy to find, but it's the key to many things in your life. Stop mistreating yourself and those around you. Stop accepting the fatigue and lack of energy you've been feeling. Use AcornSleep to achieve the calm you need. Whatever you're doing right now, I want you to imagine the two of us on that island, trying to keep in sync with that biological process that's been around since the dawn of man. This is our ideal life. Every step we takeβ€”however smallβ€”to improve our sleep should bring us closer to the kind of life we’re sitting around the campfire. - Please do not rely on AcornSleep for medical advice or diagnosis. AcornSleep is not intended to replace or replace professional medical care. - If you have any medical problems, or before starting any exercise program, please consult your physician. Do not adjust your medicines yourself.

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

Screenshots

AcornSleep4 screens
SweatStacks4 screens

Verdict

The call

The clearest difference is iOS requirement: AcornSleep at 12.0 against SweatStacks's 17.0. On price, update cadence, ads and in-app purchases 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

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

Scorecard1 real difference Β· 5 level
AcornSleep versus SweatStacks: the parameters behind the verdict, then further details
ParameterAcornSleepSweatStacks
PriceFreeFree
Update frequencyEvery 10 daysEvery 10 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod β€” betteriPhone
Requires iOS12.0 β€” better17.0
Further details β€” not scored
Size78 MB740 MB
Age rating4+4+
DeveloperCanoe LLCOftring Ventures, LLC

In-app purchases

None

AcornSleep

No in-app purchases

None

SweatStacks

No in-app purchases

Questions

Is AcornSleep free?
AcornSleep is free to download, with no in-app purchases.
Is SweatStacks free?
SweatStacks is free to download, with no in-app purchases.
Do AcornSleep or SweatStacks have ads?
Neither AcornSleep nor SweatStacks shows ads.
Which is updated more often, AcornSleep or SweatStacks?
AcornSleep ships an update every 10 days, and SweatStacks every 10 days. Most recently, AcornSleep was updated on October 27, 2026 and SweatStacks on October 30, 2026.

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