# ViDiLabs Calc vs Box Fill 2

The clearest difference is price: Box Fill 2 at $3.99 against ViDiLabs Calc's $18.99. Box Fill 2 also leads on rating (3.3 vs 3.0) and update cadence (every 5 weeks vs every 4 months). ViDiLabs Calc's advantage is iOS requirement (12.0 vs 26.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

ViDiLabs Calc costs $18.99 and Box Fill 2 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Box Fill 2 holds the better App Store score, 3.3 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

ViDiLabs Calc ships an update every 4 months, Box Fill 2 every 5 weeks. The most recent releases landed on October 2, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | ViDiLabs Calc | Box Fill 2 |
| --- | --- | --- |
| Price | $18.99 | **$3.99** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/vidilabs-calc/id1054879397/reviews) | **[3.3 (3 ratings)](https://appshunter.io/ios/app/box-fill-2/id1589765411/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 9 MB | 19 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ViDi Labs Pty Ltd](https://appshunter.io/developer/1054879396) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## What reviewers say

### ViDiLabs Calc

[App page](https://appshunter.io/ios/app/vidilabs-calc/id1054879397)

This app calculates necessary camera lens focal lengths and object distances for optimal pixel density, aiding in compliance with surveillance standards. It also estimates storage capacity for video recordings and helps analyze moving object blur for clearer image capture.

**Highlights:** Calculate required focal length and object distance, Determine required storage capacity, Pixel density calculation for identification and recognition, Database of commercially available sensors, Manual entry for custom variables, Moving object blur analysis, Pre-set pixel densities for common projects

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Box Fill 2

[App page](https://appshunter.io/ios/app/box-fill-2/id1589765411)

This utility app helps electricians and contractors perform precise electrical box fill calculations according to the latest codes. It also includes a comprehensive construction calculator for dimensional math, area, volume, and right-angle solutions.

**Highlights:** Electrical box fill calculations, Construction calculator, Dimensional math (feet-inches-fractions, metric), Area and volume calculations, Right-angle solutions, Shareable calculation reports, iCloud sync across devices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ViDiLabs Calc free?

ViDiLabs Calc costs $18.99, with no in-app purchases.

### Is Box Fill 2 free?

Box Fill 2 costs $3.99, with no in-app purchases.

### Which has better reviews, ViDiLabs Calc or Box Fill 2?

Box Fill 2 is rated higher. ViDiLabs Calc averages 3.0 out of 5 from 1 ratings, while Box Fill 2 averages 3.3 from 3 ratings.

### Do ViDiLabs Calc or Box Fill 2 have ads?

Neither ViDiLabs Calc nor Box Fill 2 shows ads.

### Which is updated more often, ViDiLabs Calc or Box Fill 2?

ViDiLabs Calc ships an update every 4 months, and Box Fill 2 every 5 weeks. Most recently, ViDiLabs Calc was updated on October 2, 2026 and Box Fill 2 on October 22, 2026.

---

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