Comparison

Ring Sizer Pro vs Feng

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

Head to head
About

Ring Sizer Pro

Easily determine your jewelry ring size with this accurate tool. It offers multiple measurement units, visual guides, and supports numerous international sizing systems. Share your findings effortlessly.

Highlights
  • Metric and imperial units
  • Diameter or circumference measurement
  • Visual guides for precision
  • Shareable results
  • Multiple international sizing systems
  • Wide size range support
Features
Read full description

Simple and easy to use, but powerfull and accurate tool to quickly find the size of your jewelry ring. With this app you can: - choose between metric and imperial units - choose diameter or circumference - use unique visual guides for precise measuring - easily share your ring size through email and social networks - use up to seven different ring size measure systems, including USA, Canada, Australia, Great Britain, Europe, Italy, Spain, Germany, Russia, Japan, China, India, Hong Kong and Brazil. Ring sizer pro supports a very wide diapason of the possible sizes. From 0000 to 16 in USA size system. Some of the countries share the same measure system. For example USA system is also used in Canada and Mexico. If you don't find you country in the preferences try to find which country use the same system. If you find any mistakes in the measure in you country please send me a letter and I will fix issue in the next app update. Thank you!

About

Feng

This app provides the functionality of a professional Feng Shui compass on your mobile device. It offers accurate direction measurements and detailed calculations for various aspects of a space, functioning as both a specialized Feng Shui tool and a regular compass.

Highlights
  • Professional Feng Shui compass functionality
  • Accurate direction measurements
  • Feng Shui calculations for spaces
  • Early and Later Heaven Ba Gua rings
  • 24 Mountains and 60 Jia Zi rings
  • Flying stars for all periods
  • Zoom-in view for clear measurements
Features
Read full description

The Feng Shui Compass app, also known as the Luo Pan compass, is created to provide the functionality of a professional Feng Shui compass on your mobile device. It allows for accurate direction measurements and feng shui calculations for various aspects of a space, such as the facing of the house, door, desk, and more. Additionally, it can be used as a regular compass. The innovative approach with a zoom-in view will allow you to read the measurements clearly. Compass rings include: • Early Heaven ba Gua ring •Later Heaven Ba Gua rings with LouShu trigrams attributes. •24 Mountains ring •60 Jia Zi ring •Da Gua periods ring with auspicious directions for period 9 •64 Hexagrams ring •24 Mansions ring •Flying stars for all Periods (Periods 1 - 9) No data is shared with third parties. No data collected.

Screenshots

Ring Sizer Pro4 screens
Feng4 screens

Verdict

The call

The clearest difference is price: Feng at Free against Ring Sizer Pro's $1.99. Feng also leads on rating (5.0 vs 2.0) and update cadence (every 3 weeks vs every 4 months). Ring Sizer Pro's advantage is iOS requirement (13.0 vs 17.6). On review sentiment, 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

Feng is free to download; Ring Sizer Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Feng holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Feng has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Ring Sizer Pro ships an update every 4 months, Feng every 3 weeks. The most recent releases landed on September 21, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
Ring Sizer Pro versus Feng: the parameters behind the verdict, then further details
ParameterRing Sizer ProFeng
Price$1.99Free — better
Rating2.0 (1 ratings)5.0 (12 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings112 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size2 MB19 MB
Age rating4+4+
DeveloperMike Melnikov9 Earth LLC

Customer experience

Ring Sizer Pro

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Feng

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Ring Sizer Pro

No in-app purchases

None

Feng

No in-app purchases

Questions

Is Ring Sizer Pro free?
Ring Sizer Pro costs $1.99, with no in-app purchases.
Is Feng free?
Feng is free to download, with no in-app purchases.
Which has better reviews, Ring Sizer Pro or Feng?
Feng is rated higher. Ring Sizer Pro averages 2.0 out of 5 from 1 ratings, while Feng averages 5.0 from 12 ratings.
Do Ring Sizer Pro or Feng have ads?
Neither Ring Sizer Pro nor Feng shows ads.
Which is updated more often, Ring Sizer Pro or Feng?
Ring Sizer Pro ships an update every 4 months, and Feng every 3 weeks. Most recently, Ring Sizer Pro was updated on September 21, 2026 and Feng on June 1, 2026.

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