Best Size Finder Apps

248+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated November 2026

With an average user rating of 4.1★, the size finder category is one of the App Store's strongest. Browse all 248+ apps we track, sorted so the most loved ones surface first.

Compare top Size Finder Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ring Sizer by Jason Withers ©Ring Sizer by Jason Withers ©Free4.5★ (7K)YesYesNov 2026
2Size FinderSize FinderFree——NoMay 2026
3ShoeBox: Footwear Size FinderShoeBox: Footwear Size FinderFree—NoNoOct 2026
4Kids Size FinderKids Size FinderFree—NoNoMay 2026
5Ring Sizer - Size Finder AppRing Sizer - Size Finder AppFree1.8★ (5)—NoOct 2026
6Ring Sizer & Size FinderRing Sizer & Size FinderFree5.0★ (2)NoYesAug 2026
7PipeGauge – Pipe Size FinderPipeGauge – Pipe Size FinderFree5.0★ (1)NoNoOct 2026
8Beanie - Grind Size FinderBeanie - Grind Size FinderFree4.8★ (33)NoNoSep 2026

Top Picks for Size Finder

4.5😞(7K ratings)
FreeAdsIn-App Purchases
Ring Sizer by Jason Withers © screenshot 1
Ring Sizer by Jason Withers © screenshot 2
Ring Sizer by Jason Withers © screenshot 3
Ring Sizer by Jason Withers © screenshot 4
Ring Sizer by Jason Withers © screenshot 5
Ring Sizer by Jason Withers © screenshot 6

Easily determine your ring size across multiple countries using metric or imperial units. Features visual guides and supports various international sizing standards. Share your size and explore a jewelry catalog.

What We Love

  • 👍 Easy to use
  • 🚀 Helpful tool
  • 💡 Useful for ring size measurement

Room to Improve

  • 🐛 Inaccurate measurements
  • 💸 Excessive ads
  • 🙄 Poor user experience due to ads
  • 🤯 Completely unusable due to ads

More Size Finder apps to explore

FAQ about Size Finder

What are the best size finder apps for iPhone?
Ring Sizer by Jason Withers © tops our size finder apps ranking as of November 2026, with a 4.5-star average from 7K App Store ratings, and it's free to download.
Yes — 20 of the top size finder apps we rank are free to download, including Ring Sizer by Jason Withers © and Size Finder.
Ring Sizer by Jason Withers © shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 248+ size finder apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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