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Best Weight Loss Diary Apps

248+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated October 2026

Looking for free weight loss diary apps? 20 of our 248+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Weight Loss Diary Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Casual dietingCasual dietingFree4.8★ (2.9K)YesYesOct 2026
2Weight Diary LiteWeight Diary LiteFree4.8★ (7.3K)YesNoOct 2026
3Noom Weight Loss, Food TrackerNoom Weight Loss, Food TrackerFree4.7★ (873K)NoYesOct 2026
4Weight Diary - BMI & LogWeight Diary - BMI & LogFree4.5★ (12)YesYesOct 2026
5Weight Loss Diary: MilensWeight Loss Diary: MilensFree—NoYesSep 2026
6WeightTracker - Loss DiaryWeightTracker - Loss DiaryFree—NoYesOct 2026
7Weight Loss Tracker: BMI LogWeight Loss Tracker: BMI LogFree—YesNoMay 2026
8Weight Loss Tracker: PeriscopeWeight Loss Tracker: PeriscopeFree—NoNoSep 2026

Top Picks for Weight Loss Diary

Casual dieting#1

Casual dieting by UNITED, Inc.

Editor's Choice
💪 Health & Fitness
4.8😊(2.9K ratings)
FreeAdsIn-App Purchases
Casual dieting screenshot 1
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Casual dieting screenshot 5

This weight management app uses charming Japanese illustrations to support your journey. Track your weight, body fat, and meals with a comprehensive journal featuring over 100 unique stickers. Unlock more stickers and use them as wallpapers to stay motivated.

What We Love

  • 💎 Minimalistic Design
  • 💕 Cute Stickers and Wallpapers
  • 🔒 Password Protection
  • 📈 Helpful Graphs and Tracking
  • 🗓️ Useful Diary Feature
  • 🎨 Aesthetically Pleasing
  • 🤗 Motivating and Encouraging

Room to Improve

  • 🐛 Occasional Bugs and Glitches
  • 💢 Annoying Ads and Password Prompts
  • 🔢 Limited Customization Options
  • 📊 Lack of Advanced Analytics
Weight Diary Lite#2

Weight Diary Lite by CURLYBRACE APPS LTD

daily weight loss tracker
Strong Contender
💪 Health & Fitness
4.8😊(7.3K ratings)
FreeAds
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Weight Diary Lite screenshot 4

Track your weight loss journey with this intuitive app. It helps you monitor daily weight entries, visualize progress with a trend line, and estimate time to reach your goals without calorie counting. Includes calculators for goals and calories, plus privacy features.

What We Love

  • 👍 Simple and easy to use
  • 📊 Helpful visual graphs and trends
  • 🎯 Effective for tracking weight loss/gain
  • 💪 Motivating and encouraging
  • 🔒 Secure with password protection option

Room to Improve

  • 🐛 Occasional data loss or reset issues
  • 🔍 Limited features compared to paid version
  • 💰 Ads can be intrusive in free version
Noom Weight Loss, Food Tracker#3

Noom Weight Loss, Food Tracker by Noom, Inc.

Healthy Habits, Meals & GLP-1s
Worth Considering
💪 Health & Fitness
4.7😊(873K ratings)
FreeIn-App Purchases
#31in Health & Fitness
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This app helps users build lasting healthy habits for weight loss and improved well-being. It offers AI-powered food logging, step tracking, personalized plans, and access to coaching and medication options. The program is rooted in psychology and backed by science to support sustainable lifestyle changes.

What We Love

  • 🚀 Easy to use
  • 👍 Helpful for weight loss
  • 💡 Focuses on psychology of eating
  • 👍 Customized to individual
  • 👍 Accountability and support
  • 👍 Sustainable lifestyle changes

Room to Improve

  • 🐛 Inconsistent food database
  • 🐛 Buggy app performance
  • 💰 Expensive subscription
  • 👥 Impersonal coaching
  • 🇺🇸 Too US-centric

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FAQ about Weight Loss Diary

What are the best weight loss diary apps for iPhone?
Casual dieting tops our weight loss diary apps ranking as of October 2026, with a 4.8-star average from 2.9K App Store ratings, and it's free to download.
Yes — 20 of the top weight loss diary apps we rank are free to download, including Casual dieting and Weight Diary Lite.
Casual dieting shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 248+ weight loss diary apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.