Comparison

Decimator vs Warby Parker

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

Head to head
About

Decimator

Easily find Dewey Decimal numbers with this offline app. It supports multiple languages and allows browsing and searching for classification codes.

Highlights
  • Dewey Decimal number lookup
  • Browse and search functionality
  • Offline access
  • Supports 10 languages
Features
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Quickly and easily look up Dewey Decimal numbers. • Browse and search • Supports 10 languages • No internet required

About

Warby Parker

Shop for prescription eyeglasses, sunglasses, and contact lenses. Features include virtual try-on, AI-powered recommendations, and a home try-on program. Get stylish eyewear starting at $95 with free shipping and returns.

Highlights
  • Shop eyeglasses and sunglasses
  • Virtual frame try-on
  • AI-powered frame recommendations
  • Shop contact lenses
  • Home Try-On program
  • Pupillary distance measurement tool
Features
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Our app is the easiest way to shop for Warby Parker eyeglasses, sunglasses, and contacts. Our eyeglasses start at $95 (prescription included!), and free shipping and returns are included with every order. With the app you can… • Shop frames starting at $95, including prescription lenses—plus sunglasses! • Get personalized frame recommendations from our AI-powered Advisor feature • Virtually try on frames with lifelike accuracy • Shop top brands of daily, bi-weekly, and monthly contacts with no hidden fees • Handle all of your eyewear prescriptions with ease • Measure your pupillary distance (PD) in no time—no card or ruler necessary Warby Parker has your eyes covered. Whether you’re looking for designer eyewear at a revolutionary price or your next supply of contacts, you can handle it all in one place. With free shipping and returns, it’s easy to shop with no risk (None! Zero! Zilch!). Plus: Apps are fun. As always, for every pair purchased, a pair of glasses is distributed to someone in need. Let’s find you an amazing pair. Some features in this app incorporate Apple's TrueDepth API. In order to use these features, users must agree to Warby Parker’s terms and conditions of use. Warby Parker's TrueDepth features look at multiple data points on the user’s face only while they are interacting with the tool. We do not save or store any face scan data for any user or share with any third-parties. • For Virtual Try-On and Find your width, the terms are: “By tapping ‘Okay,’ you agree to give us access to your camera and to measure your facial features. (FYI: We won’t store or share these measurements – and will only collect and use them while you are using the [tool].)” * For our Digital PD tool, we ask the user to opt-in for a second time: “By tapping ‘Okay,’ you agree to give us access to your camera and to measure your facial features. (FYI: We won’t store your pupillary distance (PD) measurement without your permission–and will only collect it while you are using the PD tool.).” Once a user agrees, we measure their “Pupillary Distance." Once we have a measurement, users can choose if they’d like to update and store this measurement with their Warby Parker glasses prescription details. If they choose to add this data to their prescription, the pupillary distance measurement is added to their Warby Parker glasses prescription details and not shared with any third-party. If they choose not to add these data to their existing Warby Parker prescription, we do not store these data or share with any third-parties. Privacy policy: https://www.warbyparker.com/privacy-policy Terms of Use: https://www.warbyparker.com/terms-of-use

Screenshots

Decimator3 screens
Warby Parker4 screens

Verdict

The call

The clearest difference is rating: Warby Parker at 4.9 against Decimator's 4.3. Warby Parker also leads on update cadence (every 8 days vs every 9 months) and ratings volume (296K vs 3). Decimator's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Warby Parker holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Warby Parker has 296K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 56% of Decimator's written reviews are positive against 45% of Warby Parker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Decimator ships an update every 9 months, Warby Parker every 8 days. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

Scorecard7 real differences · 3 level
Decimator versus Warby Parker: the parameters behind the verdict, then further details
ParameterDecimatorWarby Parker
PriceFreeFree
Rating4.3 (3 ratings)4.9 (296K ratings) — better
Positive reviews55.6% of reviews — better44.8% of reviews
Number of ratings3296K — better
Update frequencyEvery 9 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS8.0 — better18.0
Further details — not scored
Size4 MB370 MB
Age rating4+4+
DeveloperKosada IncorporatedWarby Parker Inc

Customer experience

Decimator

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews9 reviews
Positive55.6%
Neutral22.2%
Negative22.2%

Warby Parker

All ratings295,841 ratings
Positive97.4%
Neutral1.2%
Negative1.4%
Written reviews814 reviews
Positive44.8%
Neutral5.2%
Negative50.0%

Bugs and requests

Decimator

Not enough reviews yet to summarise bugs or requests.

Warby Parker

Reported bugs

3 issues
  • App crashes
  • Virtual try-on feature not working
  • Ordering process glitches

Requested features

3 requests
  • Allow replacing lost/broken glasses without new prescription
  • Improve app user experience
  • Integrate insurance information in ordering process

In-app purchases

None

Decimator

No in-app purchases

None

Warby Parker

No in-app purchases

Questions

Is Decimator free?
Decimator is free to download, with no in-app purchases.
Is Warby Parker free?
Warby Parker is free to download, with no in-app purchases.
Which has better reviews, Decimator or Warby Parker?
Warby Parker is rated higher. Decimator averages 4.3 out of 5 from 3 ratings, while Warby Parker averages 4.9 from 296K ratings.
Do Decimator or Warby Parker have ads?
Warby Parker shows ads; Decimator does not.
Which is updated more often, Decimator or Warby Parker?
Decimator ships an update every 9 months, and Warby Parker every 8 days. Most recently, Decimator was updated on October 7, 2026 and Warby Parker on October 18, 2026.

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