Comparison

Macroai.ai vs Lean

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

Head to head
About

Macroai.ai

This AI-powered nutrition tracker simplifies healthy eating by instantly calculating meal macros from photos. It provides a Diet Score for progress feedback, personalized goals, and an AI assistant for insights. Effortlessly monitor your nutrition whether at home or dining out.

Highlights
  • AI-powered macro calculation from photos
  • Instant meal analysis
  • Editable macro detection
  • Diet Score for progress feedback
  • Personalized goal setting
  • AI nutrition assistant
Features
Read full description

Welcome to MacroAI, your smart partner for achieving health and wellness goals. We’re redefining nutrition tracking with AI-powered precision, simplicity, and speed — all in one app. With MacroAI, you can now take a photo of your meal, and our advanced AI instantly calculates your macros — protein, carbs, and fats — no typing required. If something looks off, you can even edit what the AI detects before saving. Our innovative Diet Score feature helps you stay aligned with your goals by evaluating your daily choices and giving instant feedback on your progress. Set personalized goals, explore recipes, and chat with our AI assistant to get nutrition insights anytime. Whether you’re tracking homemade meals or dining out, MacroAI keeps you on track — effortlessly. Experience a faster, smarter, more accurate way to eat healthy. MacroAI — smart nutrition made simple. Terms: https://macroai.ai/terms-conditions.html Privacy Policy: https://macroai.ai/privacy-policy.html

About

Lean

This app helps you understand daily weight fluctuations by identifying lifestyle patterns like sleep, stress, and training. It provides one focused daily action to guide your weight loss journey without generic meal plans.

Highlights
  • Daily check-ins
  • Weight change explanations
  • Focused daily actions
  • Pattern tracking
  • Pro insights for plateaus
  • Behavior trend analysis
Features
Read full description

The scale changed. What might be behind it? Lean Signal helps you understand everyday patterns that may affect your weight, including meals, sleep, sodium, training, stress, and changes in routine. A quick daily check-in gives you context for the number on the scale and one focused action for the day. Use Meal Signal to explore how a meal may fit into your broader pattern. Over time, your Body Profile and Signal Radar help you notice what’s changing without overreacting to normal day-to-day fluctuations. Lean Signal is designed for people working toward fat loss who want to stay consistent and better understand their progress. Features include: • Quick daily check-ins • Meal Signal insights • Explanations for possible causes of scale changes • One focused daily action • Body Profile and Signal Radar • Pattern tracking over time • Educational guidance on water weight, plateaus, and consistency SUBSCRIPTIONS Lean Signal offers monthly and annual auto-renewing subscriptions. Available pricing, any eligible introductory offer, and the terms of your purchase are shown before you subscribe. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account subscription settings. Privacy Policy: https://app.lean-signal.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Lean Signal is a wellness app, not a medical device. It does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional about medical concerns.

Screenshots

Macroai.ai4 screens
Lean4 screens

Verdict

The call

The clearest difference is ratings volume: Macroai.ai at 9 against Lean's 1. On price, rating, update cadence and ads 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. Macroai.ai sells 14 in-app purchases, starting at $4.19 per month and Lean sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Macroai.ai against 5.0 for Lean. That said, the two scores are not equally well evidenced: Macroai.ai has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
Macroai.ai versus Lean: the parameters behind the verdict, then further details
ParameterMacroai.aiLean
PriceFreeFree
Rating5.0 (9 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 6 daysEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size55 MB43 MB
Age rating4+4+
DeveloperAI ASSISTANT CORPDemetrius Deese

Customer experience

Macroai.ai

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Lean

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

14 purchases

Macroai.ai

Subscriptions14
  • Monthly$4.191 Month
  • Monthly Subscription$4.951 Month
  • Premium Monthly7 Days trial$4.991 Month
Show 11 more
  • Monthly Subscription7 Days trial$5.991 Month
  • Monthly Subscription$9.991 Month
  • Monthly Subscription7 Days trial$9.991 Month
  • Monthly Subscription1 Month trial$9.991 Month
  • Monthly Subscription14 Days trial$9.991 Month
  • Quarterly Subscription7 Days trial$12.993 Months
  • Annual Subscription$25.001 Year
  • Annual Subscription$27.991 Year
  • Annual Plan7 Days trial$39.951 Year
  • Annual Subscription7 Days trial2 variants$47.951 Year
  • Annual Subscription$47.951 Year
2 purchases

Lean

Subscriptions2
  • Lean Signal Pro Monthly$6.991 Month
  • Lean Signal Pro Annual7 Days trial$49.991 Year

Questions

Is Macroai.ai free?
Macroai.ai is free to download, with in-app purchases available.
Is Lean free?
Lean is free to download, with in-app purchases available.
Which has better reviews, Macroai.ai or Lean?
Macroai.ai and Lean are both rated 5.0 out of 5 on the App Store, from 9 and 1 ratings respectively.
Do Macroai.ai or Lean have ads?
Neither Macroai.ai nor Lean shows ads.
Which is updated more often, Macroai.ai or Lean?
Macroai.ai ships an update every 6 days, and Lean every 6 days. Most recently, Macroai.ai was updated on October 24, 2026 and Lean on October 28, 2026.

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