OptoFitting vs NumberBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Precise fitting measurements
- Step-by-step workflow
- 3D printable jig included
- Tutorial videos and FAQs
- Reduces fitting errors
- Fast workflow for professionals
Read full descriptionHide 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.
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.
- 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
Read full descriptionHide 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
Verdict
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
Both are free to download. OptoFitting sells 2 in-app purchases, starting at $19.99 per month. NumberBox asks for nothing beyond the download.
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.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 18, 2026 and September 22, 2026 respectively.
| Parameter | OptoFitting | NumberBox |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (465 ratings) |
| Positive reviews | 100.0% of reviews — better | 59.5% of reviews |
| Number of ratings | 1 | 465 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 27 MB |
| Age rating | 12+ | 4+ |
| Developer | Alireza Nazer | Marvan Salemi |
Customer experience
OptoFitting
NumberBox
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
OptoFitting
- Premium 1 Month(+3 Month free)3 Months trial$19.991 Month
- Premium 6 Month(+3 Month free)3 Months trial$106.996 Months
NumberBox
No in-app purchases









