# Conserve vs Bulk Material Density Guide

The clearest difference is iOS requirement: Conserve at 10.0 against Bulk Material Density Guide's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Conserve ships an update every 9 months, Bulk Material Density Guide every 18 months. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Conserve | Bulk Material Density Guide |
| --- | --- | --- |
| 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 9 months** | Every 18 months |
| Monetization | — | Free |
| Size | 5 MB | 3 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [BNG CONTRACTOR SERVICES PTY LTD](https://appshunter.io/developer/1496097934) | [Sean Patterson](https://appshunter.io/developer/1437079753) |

## What reviewers say

### Conserve

[App page](https://appshunter.io/ios/app/conserve/id968221405)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Conserve free?

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

### Is Bulk Material Density Guide free?

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

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

Neither Conserve nor Bulk Material Density Guide shows ads.

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

Conserve ships an update every 9 months, and Bulk Material Density Guide every 18 months. Most recently, Conserve was updated on November 6, 2026 and Bulk Material Density Guide on October 31, 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.*