# Bulk Material Density Guide vs solidCalculator

The clearest difference is update cadence: solidCalculator at weekly against Bulk Material Density Guide's every 18 months. solidCalculator also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bulk Material Density Guide ships an update every 18 months, solidCalculator weekly. The most recent releases landed on October 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Bulk Material Density Guide | solidCalculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/bulk-material-density-guide/id1454584553/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Weekly** |
| Monetization | Free | — |
| Size | 3 MB | 3 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sean Patterson](https://appshunter.io/developer/1437079753) | [Solid Electron A.S.](https://appshunter.io/developer/1264657750) |

## What reviewers say

### Bulk Material Density Guide

[App page](https://appshunter.io/ios/app/bulk-material-density-guide/id1454584553)

This reference tool helps users find the bulk density of over 1700 materials. It's designed for professionals working with powders and bulk solids, assisting in conveyor specification and production system design. Search for materials by typing their name to quickly get estimated bulk density values.

**Highlights:** Search over 1700 materials, Find bulk density for powders and solids, Assists in conveyor specification, Aids in production system design, Quick search by typing material name, Provides estimated density values

**Features:** macOS Compatibility

**In-app purchases:** none


### solidCalculator

[App page](https://appshunter.io/ios/app/solidcalculator/id1469361193)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bulk Material Density Guide free?

Bulk Material Density Guide is free to download, with no in-app purchases.

### Is solidCalculator free?

solidCalculator is free to download, with no in-app purchases.

### Do Bulk Material Density Guide or solidCalculator have ads?

Neither Bulk Material Density Guide nor solidCalculator shows ads.

### Which is updated more often, Bulk Material Density Guide or solidCalculator?

Bulk Material Density Guide ships an update every 18 months, and solidCalculator weekly. Most recently, Bulk Material Density Guide was updated on October 5, 2026 and solidCalculator on September 19, 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.*