# OptoFitting vs NumberBox

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.

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.

## The numbers

| Metric | OptoFitting | NumberBox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optofitting/id1576655068/reviews)** | [4.5 (465 ratings)](https://appshunter.io/ios/app/numberboxcallerid/id6560113660/reviews) |
| Number of ratings | 1 | **465** |
| Positive reviews | **100.0% of reviews** | 59.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 27 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Alireza Nazer](https://appshunter.io/developer/1576655070) | [Marvan Salemi](https://appshunter.io/developer/1758495643) |

## What reviewers say

### OptoFitting

[App page](https://appshunter.io/ios/app/optofitting/id1576655068)

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:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Month(+3 Month free) | $19.99 | per month |
| Premium 6 Month(+3 Month free) | $106.99 | per 6 months |


### NumberBox

[App page](https://appshunter.io/ios/app/numberboxcallerid/id6560113660)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎯 Effective at identifying unknown numbers
- ⚡ Fast and practical performance
- 📱 User-friendly interface
- 💪 Comprehensive caller ID database
- 👍 Reliable identification results

**What reviewers complain about**

- 🔒 Serious privacy violations and data sharing without consent
- 🚫 Non-functional after recent updates
- 📵 Doesn't work anymore for core functionality
- ❌ Poor customer support and unresponsive to requests
- ⚠️ Inaccurate identification - shows wrong names

**Reported bugs**

- 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**

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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*