Comparison

OptoFitting vs NumberBox

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

Head to head
About

OptoFitting

Streamline progressive and single-vision lens fitting with precise, repeatable measurements. This app guides you through capturing key fitting parameters using a 3D printed jig and your device, reducing errors and speeding up the process for eyewear professionals.

Highlights
  • Precise fitting measurements
  • Step-by-step workflow
  • 3D printable jig included
  • Tutorial videos and FAQs
  • Reduces fitting errors
  • Fast workflow for professionals
Features
Read full description

*** 3 months free trial *** Make precise, repeatable fitting measurements for progressive and single‑vision lenses — fast, simple, and professional. Free trial: 3 months free with subscription. What it does: Guides you through measuring key fitting parameters (e.g., fitting height, pantoscopic tilt, vertex distance) for progressive and single‑vision glasses with a clear, step‑by‑step workflow. How it works: After subscribing you’ll receive a downloadable 3D print file (.STL). Print the small jig at a local 3D lab, place the printed tool on the customer’s frame, then follow the in‑app instructions to capture accurate measurements. Resources included: High‑quality tutorial videos, FAQs, and practical tips to improve consistency and reduce fitting errors — available both in the app and at www.faroptic.com.. Who it’s for:Optometrist, Opticians, dispensers, labs, and eyewear professionals who need reliable, repeatable measurements and a fast workflow. Subscription & delivery: Subscription unlocks the .STL download and all premium features; the measuring workflow runs entirely on your device. Privacy and terms: Terms of use follow Apple’s standard EULA — https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Get consistent, professional fitting data in minutes — reduce remakes and speed up your fitting process.

About

NumberBox

This app helps you identify unwanted calls by allowing users to report and tag spam or telemarketing numbers. All submissions are anonymous and help build a community-driven database to protect users from potential scams.

Highlights
  • Voluntarily report unwanted numbers
  • Manually add tags to phone numbers
  • Identify spam and telemarketing calls
  • Anonymous tag submissions
  • Privacy-focused data policy
  • In-app support
Features
Read full description

NumberBox is a simple and secure tool that allows users to voluntarily report unwanted or spam phone numbers to help keep the community safe. Users can manually add tags to phone numbers — for example, “Scammer,” “Telemarketing,” or “Spam.” All tags are submitted voluntarily by users to help others recognize potentially unwanted calls. Privacy & Data Policy NumberBox does not collect, store, or share any personal data. The app does not access contacts, call history, messages, or any other private information. All user-submitted tags are stored anonymously and are not linked to personal identities. Contact & Support If you have any questions, or wish to modify or remove user-submitted data, please contact us through the in-app support section or via our official support email.

Screenshots

OptoFitting3 screens
NumberBox4 screens

Verdict

The call

The clearest difference is review sentiment: OptoFitting at 100% against NumberBox's 59%. OptoFitting also leads on rating (5.0 vs 4.5). NumberBox's advantage is in-app purchases (none vs 2) and ratings volume (465 vs 1). On price, update cadence, ads 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. OptoFitting sells 2 in-app purchases, starting at $19.99 per month. NumberBox asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OptoFitting holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: NumberBox has 465 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of OptoFitting's written reviews are positive against 59% of NumberBox's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 18, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
OptoFitting versus NumberBox: the parameters behind the verdict, then further details
ParameterOptoFittingNumberBox
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (465 ratings)
Positive reviews100.0% of reviews — better59.5% of reviews
Number of ratings1465 — better
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size16 MB27 MB
Age rating12+4+
DeveloperAlireza NazerMarvan Salemi

Customer experience

OptoFitting

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NumberBox

All ratings465 ratings
Positive88.0%
Neutral2.8%
Negative9.2%
Written reviews37 reviews
Positive59.5%
Neutral5.4%
Negative35.1%

Bugs and requests

OptoFitting

Not enough reviews yet to summarise bugs or requests.

NumberBox

Reported bugs

5 issues
  • App stopped working after latest update
  • Unable to identify any numbers despite core function
  • Update installation failures
  • Incorrect name matching for phone numbers
  • App displays personal information without user consent

Requested features

5 requests
  • Offline functionality
  • Location information display
  • Anonymous call profile display
  • Expanded database for specific regions (Yemen)
  • Expanded number database

In-app purchases

2 purchases

OptoFitting

Subscriptions2
  • Premium 1 Month(+3 Month free)3 Months trial$19.991 Month
  • Premium 6 Month(+3 Month free)3 Months trial$106.996 Months
None

NumberBox

No in-app purchases

Questions

Is OptoFitting free?
OptoFitting is free to download, with in-app purchases available.
Is NumberBox free?
NumberBox is free to download, with no in-app purchases.
Which has better reviews, OptoFitting or NumberBox?
OptoFitting is rated higher. OptoFitting averages 5.0 out of 5 from 1 ratings, while NumberBox averages 4.5 from 465 ratings.
Do OptoFitting or NumberBox have ads?
Neither OptoFitting nor NumberBox shows ads.
Which is updated more often, OptoFitting or NumberBox?
OptoFitting ships an update monthly, and NumberBox monthly. Most recently, OptoFitting was updated on September 18, 2026 and NumberBox on September 22, 2026.

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