Comparison

Calodin vs Simple Weight Log

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

Head to head
About

Calodin

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Calodin is a calorie tracking app that integrates with HealthKit. It is intended for people looking for an app with simple calorie tracking. How to use the app: - Set a target calorie count (the default is 2000, adjust as necessary) - Add your favorite meals and their calorie amount - Set up some reminders and be notified around mealtime - Pick the meals you're having, or enter a custom amount of calories - See throughout the day where you're at! If you give permission to access Health app data, calories logged will also be logged via Health as "Dietary Energy". Your calorie goal, consumed calories and food you've added to the app will be synced via iCloud.

About

Simple Weight Log

Features
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Simple Weight Log lets you record your daily weight in about three seconds. No judgment, no pressure, no lectures β€” just your numbers, shown clearly. β–  A 3-second daily routine The app opens straight to a number pad with your last weight already filled in. Adjust with the +0.1 / -0.1 buttons and save β€” done. One entry per day; saving again on the same day simply overwrites it. No account, no setup. β–  Trend chart with moving averages View your weight as a line chart over 1 month, 3 months, 1 year, or all time. Overlay 7-day and 30-day moving averages to smooth out day-to-day fluctuations (like water weight) and see the gentle underlying trend. β–  Day-to-day change, streak, and BMI The home screen shows the change from the previous day and your recording streak. Set your height to see your BMI and a reference standard weight (based on BMI 22) β€” shown as reference values only. β–  A goal, expressed in numbers Set a target weight and date to see the required pace (kg per week), your progress, and a projection based on your pace so far. It works the same whether your goal is to lose or to gain. If the pace exceeds 1% of your body weight per week, the app shows a gentle caution note. β–  Home Screen and Lock Screen widgets Your latest weight and 7-day change on Home Screen widgets (small and medium) and Lock Screen widgets (circular and rectangular) β€” visible without opening the app. β–  CSV export Export all your entries as a CSV file (date, weight_kg). Your data is always yours to take. β–  Your weight stays on your device All entries are stored on your device. No account is required, and your weight data is never uploaded. There is no HealthKit or iCloud sync. β–  Honest about its limits - Units: kilograms (kg) only. Pounds are not supported. - The daily boundary is based on Japan Standard Time (JST). - This app is not a medical device. BMI and other figures are reference information, not medical advice. It does not promise weight loss or health outcomes β€” it records your weight and shows it clearly, nothing more. [Ads and purchase] Every feature is available to use. A banner ad is shown at the bottom of the screen; a one-time "Remove Ads" purchase hides the banner (no subscription, no auto-renewal). Showing ads requires a network connection, but your weight data is never sent. Privacy policy: https://honki.ai/simple-weight-log/privacy.html

Screenshots

Calodin4 screens
Simple Weight Log4 screens

Verdict

The call

The clearest difference is in-app purchases: Calodin at none against Simple Weight Log's 1. Calodin also leads on ads (none vs shown). Simple Weight Log's advantage is update cadence (every 5 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Simple Weight Log sells 1 one-off in-app purchase. Calodin asks for nothing beyond the download.

UpkeepUpdate frequency

Calodin ships an update every 3 weeks, Simple Weight Log every 5 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard3 real differences Β· 3 level
Calodin versus Simple Weight Log: the parameters behind the verdict, then further details
ParameterCalodinSimple Weight Log
PriceFreeFree
Update frequencyEvery 3 weeksEvery 5 days β€” better
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhoneiPhone
Requires iOS18.217.0 β€” better
Further details β€” not scored
Size2 MB7 MB
Age rating4+4+
DeveloperNico VerbruggenδΈ½δ½³ ζ–½

In-app purchases

None

Calodin

No in-app purchases

1 purchases

Simple Weight Log

One-time1
  • Remove Ads$0.49

Questions

Is Calodin free?
Calodin is free to download, with no in-app purchases.
Is Simple Weight Log free?
Simple Weight Log is free to download, with in-app purchases available.
Do Calodin or Simple Weight Log have ads?
Simple Weight Log shows ads; Calodin does not.
Which is updated more often, Calodin or Simple Weight Log?
Calodin ships an update every 3 weeks, and Simple Weight Log every 5 days. Most recently, Calodin was updated on October 20, 2026 and Simple Weight Log on October 24, 2026.

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