Comparison

Opthy vs Chickadee Quiet

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

Head to head
About

Opthy

Measure your Pupillary Distance (PD) accurately with this app, leveraging advanced technology for personalized glasses fitting. It transforms your iPhone into a measurement device, enabling confident online prescription glasses purchases.

Highlights
  • Contactless PD measurement
  • Quick IPD for far vision
  • Order prescription glasses online
  • iPhone 3D body scanner
  • Personalized fit for glasses
Features
Read full description

Pupillary Distance: The key to your perfect glasses. Discover Opthy, powered by global eyewear expert EssilorLuxottica. Get your Pupillary Distance just right with Opthy, the solution backed by EssilorLuxottica’s eyewear experts. Swiftly measure your Pupillary Distance (PD) with a few clicks, so you can find a comfortable and personalized fit for your perfect glasses. Moreover, experience the cutting-edge capability of turning your iPhone into a 3D body scanner and measurement device for purchasing prescription Rx glasses online with Opthy. Key Features: • Advanced contactless tool for PD measurements: Opthy's cutting-edge technology specializes in swiftly capturing Pupillary Distance (PD) measurement, revolutionizing the conventional process. • Quick IPD measurements for far focal lengths: Opthy offers quick Interpupillary Distance (IPD) measurements for far vision, allowing you to find a comfortable viewing experience for distant distances. • Order online prescription glasses with confidence: Opthy empowers you to confidently order prescription glasses online, knowing that you obtained personalized measurements for achieving a comfortable fit. About Pupillary Distance: Pupillary Distance is the distance between the center of your pupils, measured in millimeters. An average PD measurement is about 63mm. This crucial metric is essential when buying glasses, as it indicates the specific lens area you look through, helping you to achieve optimal comfort and clarity in your visual experience. Swift and User-friendly: Opthy has streamlined the process for you. All you need is your iPhone; the Opthy app will walk you through the quick and seamless scan. Once done, you'll receive the all-important Pupillary Distance measurement. Suitable for Everyone: Whether you wear glasses or not, Opthy caters to all adult users. It provides personalized Pupillary Distance measurements for compatible prescriptions. Prescription Compatibility: Opthy is compatible with single-vision prescription lenses between -5D and +5D. Please note that it is unsuitable for higher-powered prescriptions, bifocals, progressives, or multifocals. Professional in-person PD measurements are recommended for achieving the best fit and visual experience for individuals requiring more complex prescriptions. Age Restriction: For user safety, Opthy is not intended for use by persons under the age of 18. EssilorLuxottica prioritizes the well-being of our users and adheres to age-appropriate guidelines. Experience Cutting-edge Technology: Opthy harnesses cutting-edge technology to enhance your eyewear selection process. Its innovative approach to measuring Pupillary Distance (PD) empowers you with your personal PD so you can make confident decisions when purchasing glasses or adjusting your virtual reality (VR) headset.

About

Chickadee Quiet

This app transforms quiet time into a fun challenge by monitoring room noise. Users aim to keep the noise level low to achieve a high score, making rest, homework, or nap times more engaging. It's designed for families and individuals seeking peaceful moments.

Highlights
  • Live noise meter
  • Timer-based sessions
  • Scoring system
  • Practice mode
  • Family account integration
  • Private audio processing
Read full description

Make quiet time something everyone actually wants to do. Chickadee Quiet turns calm-down time into a simple, friendly challenge. Start a session and the app listens to the room, showing a live noise meter from 0 to 100. Keep it low and quiet, and you finish with a great score. It's rest time, homework time, nap time, and "please, just five quiet minutes" — reimagined as a game. How it works • Start a session and set a timer • Watch the noise meter respond to the room in real time • Stay under the line to keep your score high • Finish with a grade — Excellent, Good, Fair, or a noisy oops — plus your average noise level and number of loud moments Practice on your own Not ready for the real thing? Run a local Practice session anytime. Choose 5, 10, 15, or 20 minutes and see how calm you can keep it. Practice runs stay entirely on your device and are never recorded or uploaded. Built for households Chickadee Quiet works with your Chickadee Bandit account, so the whole family can join quiet-time sessions together. When a session starts, you'll get a notification to hop in. Private by design The microphone is used only to measure how loud the room is — never to record. No audio is saved, and practice sessions send nothing to any server. We measure the noise, not the words. Great for • Rest time and nap time • Homework and focus blocks • Calm-down moments and mindful breaks • Classrooms and quiet-time routines • Anyone who could use a few peaceful minutes Download Chickadee Quiet and see how quiet your crew can be. A Chickadee Bandit account is required to sign in.

Screenshots

Opthy4 screens
Chickadee Quiet3 screens

Verdict

The call

The clearest difference is rating: Chickadee Quiet at 5.0 against Opthy's 4.5. Opthy's advantage is ratings volume (3K vs 1) and update cadence (monthly vs every 3 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Chickadee Quiet holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Opthy has 3K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Opthy ships an update monthly, Chickadee Quiet every 3 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Opthy versus Chickadee Quiet: the parameters behind the verdict, then further details
ParameterOpthyChickadee Quiet
PriceFreeFree
Rating4.5 (3K ratings)5.0 (1 ratings) — better
Positive reviews13.2% of reviews—
Number of ratings3K — better1
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better16.4
Further details — not scored
Size217 MB39 MB
Age rating12+12+
DeveloperLuxottica Group SPAFirebird Systems LLC

Customer experience

Opthy

All ratings2,938 ratings
Positive85.9%
Neutral3.1%
Negative11.0%
Written reviews182 reviews
Positive13.2%
Neutral6.0%
Negative80.8%

Chickadee Quiet

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Opthy

Reported bugs

3 issues
  • App crashes or freezes
  • Face not detected despite proper lighting
  • Incompatible with certain devices

Requested features

3 requests
  • Voice guidance for instructions
  • Progress indicator during measurement
  • Ability to save and view past measurements

Chickadee Quiet

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Opthy

No in-app purchases

None

Chickadee Quiet

No in-app purchases

Questions

Is Opthy free?
Opthy is free to download, with no in-app purchases.
Is Chickadee Quiet free?
Chickadee Quiet is free to download, with no in-app purchases.
Which has better reviews, Opthy or Chickadee Quiet?
Chickadee Quiet is rated higher. Opthy averages 4.5 out of 5 from 3K ratings, while Chickadee Quiet averages 5.0 from 1 ratings.
Do Opthy or Chickadee Quiet have ads?
Neither Opthy nor Chickadee Quiet shows ads.
Which is updated more often, Opthy or Chickadee Quiet?
Opthy ships an update monthly, and Chickadee Quiet every 3 months. Most recently, Opthy was updated on November 7, 2026 and Chickadee Quiet on November 5, 2026.

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