# WD Purple Storage Calculator vs e

The clearest difference is iOS requirement: e at 12.0 against WD Purple Storage Calculator's 18.5. 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.

## The numbers

| Metric | WD Purple Storage Calculator | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (62 ratings)](https://appshunter.io/ios/app/wd-purple-storage-calculator/id1326868332/reviews)** | — |
| Number of ratings | **62** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 3 MB | 87 MB |
| Requires iOS | 18.5 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bsharp Sales Enablers LLC](https://appshunter.io/developer/990579984) | [El Paso Communication Systems Inc.](https://appshunter.io/developer/975383906) |

## What reviewers say

### WD Purple Storage Calculator

[App page](https://appshunter.io/ios/app/wd-purple-storage-calculator/id1326868332)

Estimate the ideal storage capacity for your smart security system. Input parameters like video resolution, frame rate, and retention days to calculate microSD card or hard disk drive needs for NVRs.

**Highlights:** Calculate microSD card storage needs, Estimate hard disk drive capacity for NVRs, Factor in video resolution and frame rate, Determine storage based on retention days, Supports various video compression formats

**Features:** macOS Compatibility

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-connect-partner/id6760871997)

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

**In-app purchases:** none


## Frequently asked questions

### Is WD Purple Storage Calculator free?

WD Purple Storage Calculator is free to download, with no in-app purchases.

### Is e free?

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

### Do WD Purple Storage Calculator or e have ads?

Neither WD Purple Storage Calculator nor e 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.*