Comparison

Ring Sizer vs Reaction Deck

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

Head to head
About

Ring Sizer

Easily determine the perfect ring size from home. Measure fingers or existing rings with precision and convert sizes across international standards. Ideal for online shoppers and gift-givers.

Highlights
  • Measure ring diameter and circumference
  • Measure finger width
  • International size conversions
  • Save and share measurements
  • Metric and imperial units
Features
Read full description

Quickly and easily find the perfect ring size with this ring and finger sizing app—offering the same precision as your jeweler, from the comfort of your home. Whether you're a professional jeweler, a frequent shopper, or purchasing your first ring, Risi ensures the perfect fit for every special occasion—engagements, weddings, birthdays, holidays, or surprises! Measure fingers or rings with ease, whether it's for yourself, a friend, a family member, or anyone special, and convert sizes across international standards. Risi is the go-to tool for anyone buying a ring online, eliminating the fear of choosing the wrong size. • Get the exact size of any ring: Measure the diameter or circumference in either metric (millimeters) or imperial (US inches) units, for yourself or someone else. • Accurately measure finger size: Easily measure finger width, perfect for when you don't have a ring on hand. • International size conversions: Seamlessly switch between popular global sizing systems (US/CA/MX, UK/AU/NZ, EU/ISO, JP/CN, and more) while maintaining accuracy. • Save measurements: Keep ring and finger sizes saved for future reference and easy access. • Share measurements: Share size info with jewelers or friends via text, email, or social media. No more guessing! With Risi, shop confidently and experience the joy of buying or giving a perfectly sized ring that will be cherished forever. Make special moments unforgettable with a ring that fits just right. To unlock all features and functionality, you can make a one-time in-app purchase for lifetime access (no subscription). This purchase will be charged to your Apple account at the time of confirmation. Privacy Policy: https://ringfitter.alpennec.com/privacy Terms and Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

Reaction Deck

Features
Read full description

Never lose the perfect reaction again. ReactionBoard is your personal library of reaction images and memes, accessible from any app on your device. Save your favorite images once, use them everywhere, in texts, social media, emails, and more. ONE COLLECTION, EVERY APP Build your ultimate reaction image collection in the main app. Browse, organize, and manage all your saved memes in a beautiful, easy-to-navigate interface. iMESSAGE STICKERS Use your collection as stickers in iMessage. Drag, drop, resize, and stick your favorite reactions right onto messages and photos. CUSTOM KEYBOARD Access your entire collection without leaving the app you're using. Simply switch to the ReactionBoard keyboard and tap to insert the perfect reaction directly into any conversation. The custom keyboard works with: • Messages • WhatsApp • Slack • Instagram DMs • Email • And any app that supports image input PRIVACY FIRST Your images stay yours. Everything is stored locally and synced through your personal iCloud account. We never see or collect your data.

Screenshots

Ring Sizer4 screens
Reaction Deck4 screens

Verdict

The call

The clearest difference is update cadence: Ring Sizer at weekly against Reaction Deck's fortnightly. Ring Sizer also leads on iOS requirement (18.0 vs 26.0). On price, ads, 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. Ring Sizer sells 10 in-app purchases, starting at $4.99 per 7 days and Reaction Deck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ring Sizer ships an update weekly, Reaction Deck fortnightly. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Ring Sizer versus Reaction Deck: the parameters behind the verdict, then further details
ParameterRing SizerReaction Deck
PriceFreeFree
Rating4.6 (36 ratings) — better—
Positive reviews88.2% of reviews—
Number of ratings36 — better—
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better26.0
Further details — not scored
Size21 MB4 MB
Age rating4+4+
DeveloperAxel Le PennecMICHELE MASSARO

In-app purchases

10 purchases

Ring Sizer

Subscriptions5
  • Weekly3 Days trial$4.997 Days
  • Weekly3 Days trial$5.997 Days
  • Weekly$6.997 Days
Show 2 more
  • Weekly3 Days trial$6.997 Days
  • Weekly3 Days trial$7.997 Days
One-time5
  • Lifetime$2.99
  • Lifetime$4.99
  • Lifetime$6.99
Show 2 more
  • Lifetime$19.99
  • Lifetime$99.99
1 purchases

Reaction Deck

One-time1
  • Unlock all features$0.99

Questions

Is Ring Sizer free?
Ring Sizer is free to download, with in-app purchases available.
Is Reaction Deck free?
Reaction Deck is free to download, with in-app purchases available.
Do Ring Sizer or Reaction Deck have ads?
Neither Ring Sizer nor Reaction Deck shows ads.
Which is updated more often, Ring Sizer or Reaction Deck?
Ring Sizer ships an update weekly, and Reaction Deck fortnightly. Most recently, Ring Sizer was updated on November 4, 2026 and Reaction Deck on October 25, 2026.

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