Comparison

Size vs SelfieDiary

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

Head to head
About

Size

Visually compare the heights of various characters, people, animals, and objects. Create custom comparisons, upload your own images, and discover height differences in a fun, interactive way. Includes a mini-game for guessing heights.

Highlights
  • Compare heights of characters, people, animals, objects
  • Accurate visual ruler comparison
  • Create custom lineups
  • Upload own images and figures
  • Share comparisons
  • Fun Guess Who Is Taller mini-game
Features
Read full description

Compare heights of characters, people, animals, objects, and custom figures in one fun and interactive height comparison app. Size lets you visually compare who is taller using an accurate ruler view and side-by-side lineup. Explore height differences between superheroes, movie characters, anime figures, celebrities, athletes, animals, dinosaurs, objects, and more. Create your own custom comparisons, add personal figures, upload images, and build unique lineups to see real size differences instantly. Features: • Compare heights of characters, people, animals, and objects • See who is taller with accurate visual ruler comparison • Create custom lineups and save your favorites • Upload your own images and personal figures • Share comparisons with friends and family • Discover categories like superheroes, movies, anime, sports, animals, dinosaurs, and more • Fun Guess Who Is Taller mini game • Easy-to-use clean interface Whether you want to compare fictional characters, real people, family members, pets, or everyday objects, Size makes height comparison simple, fun, and visual. Download Size now and discover who is taller!

About

SelfieDiary

Features
Read full description

Take one selfie every day, and let time tell the story. SelfieDiary makes it easy to notice the small changes in you and the world around you. A haircut, skin, makeup, fitness progress, mood, or even the light in your room may feel ordinary today. Put those days together and they become a surprising video that belongs only to you. ONE SELFIE A DAY Open the app and capture the moment. Your first in-app selfie creates a chin reference, and a simple guide helps you keep distance and framing consistent over time. A CALENDAR FOR YOUR STORY See recorded and missing days at a glance. You can also bring in older photos from the system Selfies album, with on-device suitability checks that help select images that align well. EYE-ALIGNED CHANGE VIDEOS SelfieDiary aligns photos using both eyes and lets you choose the date range, canvas, crop, alignment, and background. Preview what you will get, then save or share a smooth change video. PRIVATE AND UNDER YOUR CONTROL Photos stay in the app on your device by default. Saving to Photos and backup to your private iCloud container are optional. No account is required, and the app contains no ads. SELFIEDIARY PRO Choose a monthly or yearly auto-renewing subscription to remove the watermark from exports. Prices are shown on the purchase screen. Manage or cancel your subscription in your App Store account settings. Start today and leave your future self a diary that grows with you. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Size4 screens
SelfieDiary4 screens

Verdict

The call

The clearest difference is ads: SelfieDiary at none against Size's shown. Size's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 17.0). On price, update cadence and in-app purchases 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. Size sells 3 one-off in-app purchases and SelfieDiary sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Size ships an update weekly, SelfieDiary every 5 days. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 6 level
Size versus SelfieDiary: the parameters behind the verdict, then further details
ParameterSizeSelfieDiary
PriceFreeFree
Rating4.5 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyWeeklyEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size59 MB11 MB
Age rating4+4+
DeveloperTareq AlassahLi Wei

In-app purchases

3 purchases

Size

One-time3
  • 10 Coins$1.49
  • 30 coins$2.49
  • 100 coins$7.99
2 purchases

SelfieDiary

Subscriptions2
  • SelfieDiary Pro Monthly$0.991 Month
  • SelfieDiary Pro Yearly$9.991 Year

Questions

Is Size free?
Size is free to download, with in-app purchases available.
Is SelfieDiary free?
SelfieDiary is free to download, with in-app purchases available.
Do Size or SelfieDiary have ads?
Size shows ads; SelfieDiary does not.
Which is updated more often, Size or SelfieDiary?
Size ships an update weekly, and SelfieDiary every 5 days. Most recently, Size was updated on September 18, 2026 and SelfieDiary on September 14, 2026.

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