# BDV Installation Tracker vs mechanical design engine

BDV Installation Tracker and mechanical design engine are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | BDV Installation Tracker | mechanical design engine |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 8 MB | 63 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pipe & Piper](https://appshunter.io/developer/807446981) | [gan dae choi](https://appshunter.io/developer/1574341439) |

## What reviewers say

### BDV Installation Tracker

[App page](https://appshunter.io/ios/app/bdv-installation-tracker/id943039889)

**Features:** macOS Compatibility

**In-app purchases:** none


### mechanical design engine

[App page](https://appshunter.io/ios/app/mechanical-design-engine/id1574341437)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BDV Installation Tracker free?

BDV Installation Tracker is free to download, with no in-app purchases.

### Is mechanical design engine free?

mechanical design engine is free to download, with no in-app purchases.

### Do BDV Installation Tracker or mechanical design engine have ads?

Neither BDV Installation Tracker nor mechanical design engine shows ads.

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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.*