Comparison

slotho vs MacroLog

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

Head to head
About

slotho

Features
Read full description

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/

About

MacroLog

Easily track your daily calorie and macronutrient intake with multiple logging options including photo, barcode, voice, or search. Set personalized goals for protein, carbs, and fat, and monitor progress with detailed insights. Works without an account for immediate use.

Highlights
  • AI photo meal logging
  • Barcode scanning for nutrition
  • Voice and text food entry
  • Extensive food database
  • Macro and micronutrient tracking
  • Customizable calorie goals
  • Offline diary access
Features
Read full description

MacroLog is a calorie and macro tracking app for iPhone and iPad that logs a meal from a photo, a barcode, your voice, or a search — and it works without an account. FOUR WAYS TO LOG A MEAL • Photo: point the camera at your plate; the AI names the dish and estimates the portion, and you confirm or adjust the grams before it is saved • Barcode: scan packaged food and pull its nutrition label • Voice or text: say or type what you ate and it is parsed into entries • Search: 10,000+ foods in the in-app database, plus your own saved meals and recipes MACROS, NOT JUST CALORIES • Protein, carbs, and fat with daily goals and progress bars • 12 micronutrients, water, and weight in the same diary • Calorie goals from the Mifflin-St Jeor equation, adjusted for your activity level and whether you want to lose, maintain, or gain • Steps and active energy are read from Health for display only — walking more never quietly raises your calorie budget • Streaks, a day-by-day timeline, home-screen widgets, and a Live Activity MADE FOR • People who track protein, not only calories • Lifters and gym-goers working to a daily protein target • Anyone who wants to log a meal today without creating an account • Small, frequent meals that are easy to forget — photo logging takes one tap • English and Polish speakers (the app and macrolog.co are fully bilingual) YOURS, AND PORTABLE • No account, no sign-up: tracking starts on first launch • Your diary lives in a local database on the device; cloud backup and multi-device sync are there when you want them • The diary, your history, and the local food list work with no connection; photo, voice, and barcode lookups need one • Two-way Apple Health sync and CSV/JSON export — your data leaves as easily as it arrives FREQUENTLY ASKED QUESTIONS How accurate is AI photo recognition? Treat it as an informed estimate, not a measurement. The AI reads what is on the plate and guesses portion size from the image; you can edit grams, swap the matched food, or split a plate into separate items. For packaged food, the barcode scanner reads the printed label instead of estimating. Do I need an account to use MacroLog? No. There is no sign-up screen. You set your goals and start logging; the diary is stored on your device, and cloud backup uses an anonymous device identity if you turn it on. Does MacroLog work offline? The diary, your history, and the on-device food list work without a connection. AI photo logging, voice logging, and barcode lookups call out to a server, so those need one. Is MacroLog free? Yes, with a free tier: manual food search, unlimited barcode scanning, macro tracking, streaks, and a limited number of AI trials. Pro adds unlimited AI photo, voice, and text logging, recipe suggestions, micronutrient tracking, and data export. How are my calorie and macro goals calculated? From the Mifflin-St Jeor equation for your basal metabolic rate, multiplied by your activity level and adjusted for a lose, maintain, or gain goal. It is a starting estimate you can override at any time, and it is not medical advice. Does it sync with Apple Health? Yes. MacroLog writes calories, macros, micronutrients, water, and weight to Apple Health, and reads weight, steps, and active energy back. Steps are shown for context only and never change your calorie target. Does it work for keto, vegan, or intermittent fasting? You can set your own macro split and log whenever you eat, so any of those fit. MacroLog does not hand you a diet plan or a coach — it tracks what you actually ate. Where does barcode nutrition data come from? Packaged-food data comes from OpenFoodFacts, a community-maintained product database. If a product is missing or wrong, you can enter or correct it yourself. Terms of Use (EULA): https://macrolog.co/terms

Screenshots

slotho4 screens
MacroLog3 screens

Verdict

The call

The clearest difference is update cadence: MacroLog at every 4 days against slotho's every 2 weeks. slotho's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. slotho sells 6 in-app purchases, starting at $2.99 per month and MacroLog sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

slotho ships an update every 2 weeks, MacroLog every 4 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 7 level
slotho versus MacroLog: the parameters behind the verdict, then further details
ParameterslothoMacroLog
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.616.6 — better
Further details — not scored
Size67 MB74 MB
Age rating12+4+
DeveloperLuiz Carlos Maia JuniorKARLIE ALEXIS KOWALSKA

In-app purchases

6 purchases

slotho

Subscriptions6
  • slotho PRO Lite (Monthly)1 Month trial$2.991 Month
  • Slotho Pro (Monthly)1 Month trial$6.991 Month
  • slotho PRO+ (Monthly)1 Month trial$12.991 Month
Show 3 more
  • slotho PRO Lite (Yearly)1 Month trial$29.991 Year
  • Slotho Pro (Yearly)1 Month trial$69.001 Year
  • slotho PRO+ (Yearly)1 Month trial$129.991 Year
3 purchases

MacroLog

Subscriptions3
  • Weekly3 Days trial$3.997 Days
  • Monthly$9.991 Month
  • Annual$49.991 Year

Questions

Is slotho free?
slotho is free to download, with in-app purchases available.
Is MacroLog free?
MacroLog is free to download, with in-app purchases available.
Do slotho or MacroLog have ads?
Neither slotho nor MacroLog shows ads.
Which is updated more often, slotho or MacroLog?
slotho ships an update every 2 weeks, and MacroLog every 4 days. Most recently, slotho was updated on November 7, 2026 and MacroLog on November 5, 2026.

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