Comparison

Weight Diary vs DietYap

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

Head to head
About

Weight Diary

Track your weight loss progress with daily logs and clear trend lines. Visualize your journey with powerful graphs, set custom goals, and estimate your time to reach them. Integrates with Apple Health and Withings scales for comprehensive tracking.

Highlights
  • Daily weight logging
  • Clear trend line visualization
  • Custom start dates for goals
  • Goal and calorie calculators
  • Apple Health & Withings sync
  • Body fat % and notes
  • BMI display
Read full description

Understand your weight trends over time. Weight Diary helps you cut through daily fluctuations with a clear trend line, so you can quickly see whether you’re moving toward your goal. Log your weight each day to track your progress, estimate your rate of weight loss, and see how long it may take to reach your target. Starting a new diet or routine? Choose a custom start date to measure progress from any point that matters to you. With powerful graphs, goal planning tools, Apple Health support, and Withings scale sync, Weight Diary gives you a simple and effective way to stay on track. Main Features: • See your weight, progress, and goal remaining at a glance • Choose a custom start date for a new diet or milestone • Follow your daily weights with a clear trend line • Switch between the graph, summary, or full weight log with a single tap • Explore your progress over months or years in the full-screen graph • Record body fat % and add custom notes • Plan ahead with goal and calorie calculators • View your BMI with a clear visual display • Comprehensive unit support for pounds, kilograms, and stones • Sync with Apple Health and Withings scales • Full data backup, import, and export

About

DietYap

Features
Read full description

Dietitian: Chat with your personal dietitian anytime. Get instant answers about food choices, nutritional values, and tailored dietary advice based on your unique profile. Personalized Meal Plans: Forget generic diets. Our AI generates customized meal plans and recipes that match your exact tastes, allergies, and caloric needs. Intelligent Tracking: Easily track what you eat and see a detailed breakdown of your macros, calories, and nutritional progress. Multi-Language Support: Speak to your AI dietitian in your native language. DietYap supports 11 different languages seamlessly! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dietyap-519bb.web.app/privacy-policy. html Smart Background Delivery: Sent a question and closed the app? Your AI dietitian will calculate your plan and send you a notification when it's ready.

Screenshots

Weight Diary4 screens
DietYap4 screens

Verdict

The call

The clearest difference is price: DietYap at Free against Weight Diary's $7.99. DietYap also leads on update cadence (every 2 days vs every 6 months) and iOS requirement (13.0 vs 26.0). Weight Diary's advantage is in-app purchases (none vs 2) and chart position (#44 vs unranked). On ads 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

DietYap is free to download; Weight Diary costs $7.99 up front. DietYap sells 2 in-app purchases, starting at $1.99 per month. Weight Diary asks for nothing beyond the download.

UpkeepUpdate frequency

Weight Diary ships an update every 6 months, DietYap every 2 days. The most recent releases landed on November 8, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 6 level
Weight Diary versus DietYap: the parameters behind the verdict, then further details
ParameterWeight DiaryDietYap
Price$7.99Free — better
Rating4.9 (2.6K ratings) — better—
Positive reviews96.8% of reviews—
Number of ratings2.6K — better—
Update frequencyEvery 6 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#44 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.013.0 — better
Further details — not scored
Size11 MB174 MB
Age rating4+12+
DeveloperCURLYBRACE APPS LTDMurat GUNGOR

In-app purchases

None

Weight Diary

No in-app purchases

2 purchases

DietYap

Subscriptions2
  • DietYap Monthly Premium$1.991 Month
  • DietYap Yearly Premium$19.991 Year

Questions

Is Weight Diary free?
Weight Diary costs $7.99, with no in-app purchases.
Is DietYap free?
DietYap is free to download, with in-app purchases available.
Do Weight Diary or DietYap have ads?
Neither Weight Diary nor DietYap shows ads.
Which is updated more often, Weight Diary or DietYap?
Weight Diary ships an update every 6 months, and DietYap every 2 days. Most recently, Weight Diary was updated on November 8, 2026 and DietYap on October 25, 2026.

Other comparisons