Comparison

Weight Diary vs Calipet

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

Head to head
About

Weight Diary

Features
Read full description

Logging your weight takes 3 seconds. Open the app, tap +, done. Weight Diary is the simplest way to track your weight — every entry lands on a color-coded calendar, so a whole month of progress is visible at a glance. • Calendar view — entries appear as colored cards on each day, turning your month into a picture. • Context tags — log up to 5 entries a day, tagged Fasted, After meal, Workout, or Other. • Smart filters — show only your fasted weigh-ins to see your true trend. Toggle any context on or off, in both calendar and stats. • Trend charts — see your change over 7 days, 1 month, or 3 months, with period change and average at a glance. • BMI — calculated automatically from your height and weight, with healthy-range guidance. • Your units — switch between kg·cm and lb·ft anytime. • No sign-up — everything stays on your device. No account, no ads. [Premium] Unlock 6-month and 1-year trends, plus viewing and editing entries older than 3 months, with a Premium subscription. • Subscriptions renew monthly and can be cancelled anytime in iOS Settings > Apple Account > Subscriptions. Payment is charged to your Apple ID account, and the subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Terms of Use: https://juno1028.github.io/weight-tracker-legal/terms.html Privacy Policy: https://juno1028.github.io/weight-tracker-legal/privacy.html

About

Calipet

Features
Read full description

Calipet uses AI to scan meals, track calories, and deliver real-time nutrition feedback, all while your virtual pet grows with your progress. With achievements, evolving characters, and mini games like Meal Mastermind, Calipet turns healthy eating into a fun, rewarding journey. Track your calories. Evolve your pet. Transform your health. Terms of Use: https://calibrxai.com/terms Privacy Policy: https://calibrxai.com/privacy

Screenshots

Weight Diary4 screens
Calipet4 screens

Verdict

The call

The clearest difference is ads: Weight Diary at none against Calipet's shown. Weight Diary also leads on iOS requirement (15.6 vs 18.0). Calipet's advantage is update cadence (every 3 weeks vs every 5 months). On price, 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. Weight Diary sells 1 in-app purchase, starting at $2.99 per month and Calipet sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Weight Diary ships an update every 5 months, Calipet every 3 weeks. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 3 level
Weight Diary versus Calipet: the parameters behind the verdict, then further details
ParameterWeight DiaryCalipet
PriceFreeFree
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better18.0
Further details — not scored
Size24 MB171 MB
Age rating4+17+
DeveloperJuno KimCalibrx AI Inc.

In-app purchases

1 purchases

Weight Diary

Subscriptions1
  • Monthly Subscription$2.991 Month
2 purchases

Calipet

Subscriptions2
  • Calipet Pro Monthly1 Month trial$9.991 Month
  • Calipet Pro Annual1 Year trial$59.991 Year

Questions

Is Weight Diary free?
Weight Diary is free to download, with in-app purchases available.
Is Calipet free?
Calipet is free to download, with in-app purchases available.
Do Weight Diary or Calipet have ads?
Calipet shows ads; Weight Diary does not.
Which is updated more often, Weight Diary or Calipet?
Weight Diary ships an update every 5 months, and Calipet every 3 weeks. Most recently, Weight Diary was updated on October 18, 2026 and Calipet on October 5, 2026.

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