Comparison

Slim AI vs EchoCal

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

Head to head
About

Slim AI

Analyze meals from photos to understand their nutritional impact, including calories and macronutrients. Track activity, hydration, and fasting with personalized goal setting and health score evaluations. Sync data with health apps for a comprehensive overview of your well-being.

Highlights
  • Photo-based meal analysis
  • Calorie and macronutrient breakdown
  • Health Score for ingredient quality
  • Food label scanning
  • Personalized meal suggestions
  • Activity, hydration, and fasting tracking
  • Health app integration
Features
Read full description

Slim AI is an AI calorie tracker that counts calories and macros from one photo of your meal. Every meal also gets a Health Score from 0 to 100, so you see how much you eat and what that food does for your body. You don't have to type anything or dig through a food database. Point the camera at your plate, check the numbers and fix anything that looks off with one tap. HOW SLIM AI WORKS 1. Answer a short questionnaire about your body, your goal and your lifestyle. 2. Get daily calorie and macro targets calculated for you, not for an average person. 3. Log meals with a photo, a barcode, a food label or your voice. 4. Follow your calories, protein, carbs, fat and Health Score in one place. LOG FOOD IN SECONDS • Meal photo: AI recognizes the food on your plate and estimates calories and macros • Barcode scanner for packaged food • Food label scanner that reads the nutrition table for you • Voice logging: say what you ate and Slim AI adds it to your food diary • One-tap fix for any value, so you always have the final say HEALTH SCORE: MORE THAN CALORIES Two meals with the same calories can do very different things to your body. Slim AI scores every meal by looking at its ingredients, how processed it is and how much sugar, fat and fiber it has. Four risk scores show how a meal may affect acne, bloating, brain fog and aging. You also see the vitamins (D, C, B12, folate, A), minerals (magnesium, iron, potassium, calcium, zinc) and other nutrients (fiber, omega-3, sodium, cholesterol, antioxidants) in each meal. BODY ANALYSIS Take a photo of your body and Slim AI estimates your body fat percentage as a range within seconds. Then generate an AI visualization of the shape you could reach and see it side by side with how you look today. Save it or share it with friends. A PLAN THAT FITS YOUR GOAL • Lose weight, maintain your weight or gain weight and build muscle • Calorie and macro targets based on your body, your activity and your goal • Goal weight and weekly pace matched to your weight, height and goal • Protein tracking against your daily target • Pick your eating style (classic, keto, carnivore, vegetarian, vegan or pescatarian) and your macros and recipes adjust to it RECIPES FROM YOUR PRODUCTS Not sure what to cook tonight? Slim AI creates recipes from the products you already have, matched to your diet, with step-by-step instructions, calories and macros. FASTING, WATER AND ACTIVITY • Intermittent fasting tracker with ready-made or custom fasting windows, a live countdown and your fasting history • Water tracker with a daily target • Steps, workouts and burned calories synced from Apple Health WHO SLIM AI IS FOR • People who want to lose weight without logging every ingredient by hand • Gym-goers who track protein and macros to build muscle or cut fat • Anyone on keto, vegan, carnivore or intermittent fasting who wants an easy food diary • People curious how their food affects their skin, energy and digestion • Anyone who wants to know their body fat and see what their goal physique could look like Health Score, risk scores and body fat estimates are for informational purposes only and are not medical advice. FREE TRIAL AND SUBSCRIPTION The annual plan starts with a 3-day free trial that gives you full access to every feature. Slim AI offers auto-renewable subscriptions, and an active subscription is required to use the app after the trial. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact: slimai.app/en/contact Learn more: slimai.app

About

EchoCal

Features
Read full description

EchoCal: Twój Głosowy Asystent Kalorii AI Przestań wpisywać każdą kalorię ręcznie. Zacznij mówić! EchoCal to najnowocześniejszy na rynku sposób na liczenie kalorii i makroskładników. Zapomnij o ślęczeniu nad wyszukiwarką produktów i żmudnym uzupełnianiu gramatury. Po prostu powiedz, co zjadłeś, a nasza sztuczna inteligencja zajmie się resztą. DLACZEGO ECHOCAL? LOGOWANIE GŁOSOWE: "Dwa jajka sadzone, awokado i kromka chleba żytniego" – to wystarczy! Nasz system AI natychmiast rozpozna składniki, oszacuje ich wagę i policzy kalorie (Kcal) oraz makro (Białko, Węglowodany, Tłuszcze). INTELIGENTNA ANALIZA: EchoCal rozumie naturalny język. Nieważne jak mówisz – my rozumiemy Twoje posiłki i błyskawicznie dodajemy je do Twojego dziennika. BIBLIOTEKA KODÓW EAN: Masz produkt w opakowaniu? Zeskanuj go lub podyktuj nazwę. EchoCal posiada dostęp do ogromnej bazy produktów, sprawiając, że logowanie jest jeszcze szybsze. ŚLEDZENIE POSTĘPÓW: Monitoruj swój deficyt kaloryczny, wagę i statystyki tygodniowe w czytelnych wykresach. Buduj nawyki i osiągaj swoje cele fitness bez wysiłku. EchoCal to oszczędność cennego czasu każdego dnia. Dołącz do tysięcy użytkowników, którzy liczą kalorie bez stresu i bez klawiatury! INFORMACJE O SUBSKRYPCJI ECHOCAL PREMIUM: Subskrypcja EchoCal Premium odblokowuje nielimitowane logowanie głosowe, zaawansowane statystyki historyczne oraz brak reklam. Dostępne plany: Miesięczny oraz Roczny. Płatność zostanie pobrana z Twojego konta Apple ID po potwierdzeniu zakupu. Subskrypcja odnawia się automatycznie, chyba że automatyczne odnawianie zostanie wyłączone co najmniej 24 godziny przed końcem bieżącego okresu. Konto zostanie obciążone opłatą za odnowienie w ciągu 24 godzin przed końcem bieżącego okresu. Subskrypcjami można zarządzać, a automatyczne odnawianie można wyłączyć w ustawieniach konta Apple ID po zakupie. LINKI PRAWNE: Warunki użytkowania (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Regulamin aplikacji (Terms of Service): https://echocal.github.io/EchoCal-Legal/terms.html Polityka prywatności: https://echocal.github.io/EchoCal-Legal/privacy.html

Screenshots

Slim AI4 screens
EchoCal4 screens

Verdict

The call

The clearest difference is update cadence: Slim AI at every 8 days against EchoCal's every 3 weeks. Slim AI also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support 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. Slim AI sells 3 in-app purchases, starting at $9.99 per month and EchoCal sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Slim AI ships an update every 8 days, EchoCal every 3 weeks. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
Slim AI versus EchoCal: the parameters behind the verdict, then further details
ParameterSlim AIEchoCal
PriceFreeFree
Rating3.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 8 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size85 MB49 MB
Age rating12+4+
DeveloperFUTURESOFT MAZUREK I NIEDZIELA SPOLKA KOMANDYTOWAJAKUB PIGIEL

In-app purchases

3 purchases

Slim AI

Subscriptions3
  • Monthly Plan$9.991 Month
  • App Access3 Days trial$22.991 Year
  • Annual Plan3 Days trial$34.991 Year
2 purchases

EchoCal

Subscriptions2
  • EchoCal Premium3 Days trial$3.991 Month
  • EchoCal Premium3 Days trial$29.991 Year

Questions

Is Slim AI free?
Slim AI is free to download, with in-app purchases available.
Is EchoCal free?
EchoCal is free to download, with in-app purchases available.
Do Slim AI or EchoCal have ads?
Both Slim AI and EchoCal show ads.
Which is updated more often, Slim AI or EchoCal?
Slim AI ships an update every 8 days, and EchoCal every 3 weeks. Most recently, Slim AI was updated on October 25, 2026 and EchoCal on October 11, 2026.

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