# uSpectrum MK350S vs ActiGRASP

The clearest difference is iOS requirement: uSpectrum MK350S at 6.0 against ActiGRASP's 13.0. 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.

uSpectrum MK350S ships an update every 2 months, ActiGRASP every 3 weeks. Both last shipped on October 4, 2026.

## The numbers

| Metric | uSpectrum MK350S | ActiGRASP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/uspectrum-mk350s/id718838051/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 54 MB | 28 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) | [Johan Rydgard](https://appshunter.io/developer/1842841096) |

## What reviewers say

### uSpectrum MK350S

[App page](https://appshunter.io/ios/app/uspectrum-mk350s/id718838051)

This app provides advanced light analysis and efficient workflow features for lighting production. It offers remote control operations, data storage, and detailed light readings including BIN ranking and CRI.

**Highlights:** WiFi remote control, SD card data storage, Basic and advanced light analytics, BIN ranking, Log compare, CRI (R1-R15)

**Features:** macOS Compatibility

**In-app purchases:** none


### ActiGRASP

[App page](https://appshunter.io/ios/app/actigrasp/id6753171702)

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

**In-app purchases:** none


## Frequently asked questions

### Is uSpectrum MK350S free?

uSpectrum MK350S is free to download, with no in-app purchases.

### Is ActiGRASP free?

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

### Do uSpectrum MK350S or ActiGRASP have ads?

Neither uSpectrum MK350S nor ActiGRASP shows ads.

### Which is updated more often, uSpectrum MK350S or ActiGRASP?

uSpectrum MK350S ships an update every 2 months, and ActiGRASP every 3 weeks. Most recently, uSpectrum MK350S was updated on October 4, 2026 and ActiGRASP on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*