slotho
Food, workout and sleep
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
New: a fresh design with four tabs, color themes, and delete any entry where you see it. Plus GLP-1 Mode, Image Playground drawings and sleep logging without a watch.
slotho is a food, drink, sleep, workout and fasting diary that also tells you how those things connect. The insights are worked out on your device, and everything you log goes to Apple Health, where it stays yours.
LOG IT IN SECONDS
- Search a food, scan a barcode, photograph a plate, or type "two eggs and a coffee"
- Hundreds of common foods built in, most with their own illustration, plus Open Food Facts and USDA FoodData Central
- Drinks log what is actually in them: water, caffeine and alcohol
- Meals, favorites and plans you can reuse
- Log from Apple Watch, the Home Screen, Siri or a Shortcut
- Delete any entry where you see it, with Undo
HOW FOOD MAKES YOU FEEL
- Six digestion symptoms with severity, where a symptom-free visit counts as evidence too
- Ten more symptoms, from headaches to appetite changes
- Mood check-ins through Apple Health's State of Mind
- GLP-1 Mode: your dose days from Health, with symptoms on the days after a dose compared with later days
- slotho looks for foods that show up before a symptom, using only your own logs, and says so only once the evidence is there
- Correlations across sleep, digestion, energy, caffeine, alcohol and heart-rate variability
- Ask your history in your own words, such as "When did I last eat salmon?", and get the answer from your own logs
YOUR DAY IN ONE VIEW
- A daily balance from sleep, food, activity and recovery
- Energy in against energy spent, plus macros, fiber, sugar and electrolytes
- Water, caffeine and alcohol
- Home Screen and Lock Screen widgets, and an Apple Watch complication
- A report for your dietitian or your trainer, ready to send
FASTING
- An eating window for each day of the week
- Your fast starts when you actually finished eating, not when the schedule said you would
- The stage you are in on Today and on your wrist, stage notifications, and a morning recap for the ones you slept through
SLEEP, RECOVERY AND MIND
- Stages, duration, and how regular your nights are
- Resting heart rate and heart-rate variability against your own baseline, never a population figure
- Training load: this week against your last four
- Breathe, and six guided meditations read aloud
WORKOUTS
- Build plans on iPhone, run them from your wrist
- Timed sets, rests, and exercise notes read aloud on the watch
- Sloth Pacing ends a rest when your heart rate has come back, not when a timer says so
- Save workouts, nights of sleep, meals and mindful sessions to Calendar - slotho only ever adds events, and never reads your calendar
PRIVATE BY DEFAULT
- Correlations are worked out on your device
- Photos sent for analysis are stripped of location, capture time and camera details first
- No account, no advertising, no tracking
FREE, AND PRO
Free is a complete diary: unlimited food, drink and symptom logging, the fasting timer, unlimited meal and workout plans, breathing and guided meditations, and logging on Apple Watch. PRO adds your daily balance score, the correlations, weekly recaps, your full history, and Sloth Pacing and Coach Voice on the watch. PRO also brings its own AI, with no key of your own: meal photos and typed foods read, foods drawn, meal and workout plans drafted, customized voice meditations and your workout notes voiced, and questions about your history answered, all from one monthly balance of credits. Monthly or yearly, with a free trial.
Also on iPad and Mac, kept in step through Apple Health and iCloud.
Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
iPhone
- New design: four tabs, Today, Log, Review and Me. Settings opens from your photo on Today, or the gear on Me.
- Today leads with the moment: this morning's intention, the fast you are in and its next stage, or the evening's cut-offs. Then your daily balance, rings for water, energy and caffeine with a log button on each, the day's rhythm or macros, and your timeline.
- Review is where slotho reflects: Insights, Ask Your History and History, then a preview of each series, each opening its own page. Its 7-day view is the weekly recap.
- Me is about you: your photo, name, fitness age and goals.
- Feature: Themes, in Settings, General. Fruit Salad colors each card by what it is about, Berries adds small colored dots, Guava tints the page and Coconut keeps it plain.
- Feature: Delete an entry where you see it: swipe it in History, or press and hold it on Today's timeline, with Undo.
- Feature: GLP-1 Mode, in Me, Profile: your dose days from Health (iOS 26), an insight on symptoms after a dose, a protein reference and a reminder to keep drinking on a day with vomiting or diarrhea. Fasting pauses, and doses never leave your phone.
- Feature: Illustrate this food can draw with Image Playground, free with Apple Intelligence.
- Feature: Nothing recording your nights? Log last night in one tap. A night your iPhone recorded only as time in bed now counts as sleep.
- Feature: Breathe and Meditate show on the Lock Screen and in the Dynamic Island, with an End button.
- Feature: The Log tab's sparkles button gathers Snap a Meal and the AI writers for meal plans, workout plans and meditations.
- Feature: Matcha and Matcha Latte, and your usual drinks log in one tap.
- Feature: A symptom can say how long it lasted.
- Improvement: A meal is a start and a length: Just finished, Eating now or earlier, 30 minutes unless you change it. Picked times move in 5-minute steps.
- Improvement: Ask Your History leads with the answer: a headline figure, a chart and a sentence or two.
- Improvement: A nap no longer replaces last night's sleep, and meal suggestions change from day to day.
- Improvement: Easier to read: darker secondary text in light mode, and larger buttons.
Apple Watch
- Feature: The countdown is your choice: Off, Every Second or Short, and holds count up the same way. Everything the watch says aloud is on its own Voice page.
- Improvement: A walk, run or ride started from Indoor or Outdoor is titled that way.
- Improvement: A plank or hold reads its notes, then starts its timer.
- Improvement: Switch during a workout goes straight to the new workout.
The developer, Luiz Carlos Maia Junior, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Luiz Carlos Maia Junior
- Size
- 67.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later. - Apple Watch
Requires watchOS 10.6 or later.
- iPhone
- Languages
English and 21 more
- English, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hindi, Italian, Japanese, Korean, Latvian, Lithuanian, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Slotho Pro (Yearly) $69.00
- Slotho Pro (Monthly) $6.99
- Copyright
- © 2026 red8.io

