# uSpectrum MK350D vs PieCloud

The clearest difference is review sentiment: PieCloud at 100% against uSpectrum MK350D's 0%. PieCloud also leads on rating (5.0 vs 3.0) and update cadence (every 3 weeks vs every 2 months). uSpectrum MK350D's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price, ratings volume and ads there is nothing between them.

Both are free to download. PieCloud sells 3 in-app purchases, starting at $1.99 per year. uSpectrum MK350D asks for nothing beyond the download.

PieCloud holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 0% of uSpectrum MK350D's written reviews are positive against 100% of PieCloud's.

uSpectrum MK350D ships an update every 2 months, PieCloud every 3 weeks. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | uSpectrum MK350D | PieCloud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/uspectrum-mk350d/id876342072/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/piecloud-cloud-storage/id6468402212/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 7 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) | [PIECLOUD, LLC](https://appshunter.io/developer/1716661761) |

## What reviewers say

### uSpectrum MK350D

[App page](https://appshunter.io/ios/app/uspectrum-mk350d/id876342072)

This portable spectrometer offers easy-to-use lighting analysis for production environments. It features BLE remote control and SD card data storage for efficient workflow and advanced light analytics.

**Highlights:** BLE remote control, SD card data storage, Fast lighting readings, Advanced light analytics, Efficient workflow features

**Features:** macOS Compatibility

**In-app purchases:** none


### PieCloud

[App page](https://appshunter.io/ios/app/piecloud-cloud-storage/id6468402212)

Securely store and access your videos and photos from anywhere. This app offers encrypted cloud storage with offline viewing and scheduled uploads. It helps you manage space by identifying large files and provides a visual breakdown of your media.

**Highlights:** Encrypted cloud storage, Offline viewing, Scheduled uploads, Identify large files, Pie chart media view, File restoration

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 GB | $1.99 | per year |
| 200 GB | $5.99 | per year |
| 2 TB | $44.99 | per year |


## Frequently asked questions

### Is uSpectrum MK350D free?

uSpectrum MK350D is free to download, with no in-app purchases.

### Is PieCloud free?

PieCloud is free to download, with in-app purchases available.

### Which has better reviews, uSpectrum MK350D or PieCloud?

PieCloud is rated higher. uSpectrum MK350D averages 3.0 out of 5 from 2 ratings, while PieCloud averages 5.0 from 4 ratings.

### Do uSpectrum MK350D or PieCloud have ads?

Neither uSpectrum MK350D nor PieCloud shows ads.

### Which is updated more often, uSpectrum MK350D or PieCloud?

uSpectrum MK350D ships an update every 2 months, and PieCloud every 3 weeks. Most recently, uSpectrum MK350D was updated on October 10, 2026 and PieCloud on October 14, 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.*