Comparison

Weight Diary vs Kilo

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

Head to head
About

Weight Diary

Features
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Logging your weight takes 3 seconds. Open the app, tap +, done. Weight Diary is the simplest way to track your weight โ€” every entry lands on a color-coded calendar, so a whole month of progress is visible at a glance. โ€ข Calendar view โ€” entries appear as colored cards on each day, turning your month into a picture. โ€ข Context tags โ€” log up to 5 entries a day, tagged Fasted, After meal, Workout, or Other. โ€ข Smart filters โ€” show only your fasted weigh-ins to see your true trend. Toggle any context on or off, in both calendar and stats. โ€ข Trend charts โ€” see your change over 7 days, 1 month, or 3 months, with period change and average at a glance. โ€ข BMI โ€” calculated automatically from your height and weight, with healthy-range guidance. โ€ข Your units โ€” switch between kgยทcm and lbยทft anytime. โ€ข No sign-up โ€” 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. โ€ข 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

Kilo

Features
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Kilo๋Š” ๋งค์ผ์˜ ๋ชธ๋ฌด๊ฒŒ๋ฅผ ๊ฐ€๋ณ๊ฒŒ ๊ธฐ๋กํ•˜๊ณ , ๊ทธ ๋ณ€ํ™”๋ฅผ ์˜ค๋ž˜ ์ด์–ด์„œ ๋ณผ ์ˆ˜ ์žˆ๊ฒŒ ๋งŒ๋“  ์•ฑ์ด์—์š”. ๋ˆˆ์— ๋„๋Š” ์ž๊ทน๋ณด๋‹ค, ๊พธ์ค€ํžˆ ๋‚จ๊ฒจ๋‘๋Š” ๊ธฐ๋ก์˜ ํž˜์— ๋” ์ง‘์ค‘ํ–ˆ์–ด์š”. ์˜ค๋Š˜์˜ ๋ชธ๋ฌด๊ฒŒ๋ฅผ ๋‚จ๊ธฐ๊ณ , ์บ˜๋ฆฐ๋”์—์„œ ๋‚ ์งœ๋ณ„ ๊ธฐ๋ก์„ ํ™•์ธํ•˜๊ณ , ๊ทธ๋ž˜ํ”„๋กœ ํ๋ฆ„์„ ๋Œ์•„๋ณด์„ธ์š”. ํ•˜๋ฃจํ•˜๋ฃจ ์Œ“์ธ ์ˆซ์ž๋Š” ์–ด๋А ์ˆœ๊ฐ„ ๋‚ด ๋ณ€ํ™”์˜ ๋ฐฉํ–ฅ์„ ๋ณด์—ฌ์ค˜์š”. ๋ชฉํ‘œ ์ฒด์ค‘์„ ์„ค์ •ํ•ด๋‘๋ฉด ์ง€๊ธˆ ์–ผ๋งˆ๋‚˜ ๋‚จ์•˜๋Š”์ง€๋„ ๋” ์ง๊ด€์ ์œผ๋กœ ํ™•์ธํ•  ์ˆ˜ ์žˆ์–ด์š”. Kilo๋Š” ๋ณต์žกํ•˜์ง€ ์•Š์•„์š”. ํ•„์š”ํ•œ ๊ธฐ๋Šฅ๋งŒ ๋‹ด์•„์„œ, ๊ธฐ๋กํ•˜๋Š” ์ˆœ๊ฐ„๋ถ€ํ„ฐ ๋‹ค์‹œ ๊บผ๋‚ด๋ณด๋Š” ์ˆœ๊ฐ„๊นŒ์ง€ ์ž์—ฐ์Šค๋Ÿฝ๊ณ  ํŽธ์•ˆํ•˜๊ฒŒ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์–ด์š”. ๊ทธ๋ฆฌ๊ณ  ๊ด‘๊ณ ๊ฐ€ ์—†์–ด์š”. ๊ธฐ๋ก์„ ๋ฐฉํ•ดํ•˜๋Š” ๋ฐฐ๋„ˆ๋‚˜ ๋ถˆํ•„์š”ํ•œ ํŒ์—… ์—†์ด, ์˜ค๋กฏ์ด ๋‚ด ๊ธฐ๋ก์—๋งŒ ์ง‘์ค‘ํ•  ์ˆ˜ ์žˆ์–ด์š”. ์ฃผ์š” ๊ธฐ๋Šฅ - ๋‚ ์งœ๋ณ„ ๋ชธ๋ฌด๊ฒŒ ๊ธฐ๋ก - ์บ˜๋ฆฐ๋”๋กœ ๋ณด๋Š” ๊ธฐ๋ก ํ๋ฆ„ - ๊ทธ๋ž˜ํ”„๋กœ ํ™•์ธํ•˜๋Š” ์ฒด์ค‘ ๋ณ€ํ™” - ๋ชฉํ‘œ ์ฒด์ค‘ ์„ค์ •๊ณผ ์ง„ํ–‰ ํ™•์ธ - ํ•œ๊ตญ์–ด/์˜์–ด ์ง€์› - ์•ฑ ์ž ๊ธˆ ์ง€์› - ๊ด‘๊ณ  ์—†๋Š” ๊น”๋”ํ•œ ์‚ฌ์šฉ ๊ฒฝํ—˜ ์ด๋Ÿฐ ๋ถ„๋“ค์—๊ฒŒ ์ž˜ ๋งž์•„์š” - ๋ชธ๋ฌด๊ฒŒ๋ฅผ ๋ถ€๋‹ด ์—†์ด ๋งค์ผ ๊ธฐ๋กํ•˜๊ณ  ์‹ถ์€ ๋ถ„ - ์ˆซ์ž๋ณด๋‹ค ํ๋ฆ„์„ ๊พธ์ค€ํžˆ ๋ณด๊ณ  ์‹ถ์€ ๋ถ„ - ๊ด‘๊ณ  ์—†์ด ์กฐ์šฉํ•œ ๊ธฐ๋ก ์•ฑ์„ ์ฐพ๋Š” ๋ถ„ - ๋‚ด ์†๋„์— ๋งž๊ฒŒ ์ฒด์ค‘ ๊ด€๋ฆฌ๋ฅผ ์ด์–ด๊ฐ€๊ณ  ์‹ถ์€ ๋ถ„ ์•ˆ๋‚ด - Kilo๋Š” ๊ฐœ์ธ ๊ฑด๊ฐ• ๊ธฐ๋ก์„ ๋•๊ธฐ ์œ„ํ•œ ์•ฑ์ด์—์š”. - ์˜๋ฃŒ ์„œ๋น„์Šค๋‚˜ ์ „๋ฌธ์ ์ธ ์˜๋ฃŒ ์กฐ์–ธ์„ ๋Œ€์‹ ํ•˜์ง€ ์•Š์•„์š”.

Screenshots

Weight Diary4 screens
Kilo4 screens

Verdict

The call

The clearest difference is in-app purchases: Kilo at none against Weight Diary's 1. Kilo also leads on update cadence (weekly vs every 5 months). Weight Diary's advantage is iOS requirement (15.6 vs 26.1). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Weight Diary sells 1 in-app purchase, starting at $0.99 per month. Kilo asks for nothing beyond the download.

UpkeepUpdate frequency

Weight Diary ships an update every 5 months, Kilo weekly. The most recent releases landed on September 13, 2026 and September 7, 2026 respectively.

Scorecard3 real differences ยท 3 level
Weight Diary versus Kilo: the parameters behind the verdict, then further details
ParameterWeight DiaryKilo
PriceFreeFree
Update frequencyEvery 5 monthsWeekly โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15.6 โ€” better26.1
Further details โ€” not scored
Size24 MB15 MB
Age rating4+4+
DeveloperJuno KimJinhyeong Kim

In-app purchases

1 purchases

Weight Diary

Subscriptions1
  • Monthly Subscription$0.991 Month
None

Kilo

No in-app purchases

Questions

Is Weight Diary free?
Weight Diary is free to download, with in-app purchases available.
Is Kilo free?
Kilo is free to download, with no in-app purchases.
Do Weight Diary or Kilo have ads?
Neither Weight Diary nor Kilo shows ads.
Which is updated more often, Weight Diary or Kilo?
Weight Diary ships an update every 5 months, and Kilo weekly. Most recently, Weight Diary was updated on September 13, 2026 and Kilo on September 7, 2026.

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