# uSpectrum MK350D vs Rynx. lite

The clearest difference is rating: Rynx. lite at 5.0 against uSpectrum MK350D's 3.0. uSpectrum MK350D's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Rynx. lite sells 2 one-off in-app purchases. uSpectrum MK350D asks for nothing beyond the download.

Rynx. lite holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | uSpectrum MK350D | Rynx. lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/uspectrum-mk350d/id876342072/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rynx-lite/id1031779237/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 8 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) | [ICT Fractal Inc.](https://appshunter.io/developer/473613262) |

## 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


### Rynx. lite

[App page](https://appshunter.io/ios/app/rynx-lite/id1031779237)

Record audio and enhance it with images, memos, and location data. Visualize sound with real-time waveforms, trim recordings, and share projects in various formats. Manage all your audio projects efficiently.

**Highlights:** Real-time waveform visualization, Add images and memos to recordings, Location tracking and route mapping, Highlighting for playback loops and trimming, Powerful trimming and editing tools, Project management and sharing, Adjustable microphone amplification

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Tickets | $0.99 | one-time |
| 100 Tickets | $3.99 | one-time |


## Frequently asked questions

### Is uSpectrum MK350D free?

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

### Is Rynx. lite free?

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

### Which has better reviews, uSpectrum MK350D or Rynx. lite?

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

### Do uSpectrum MK350D or Rynx. lite have ads?

Rynx. lite shows ads; uSpectrum MK350D does not.

### Which is updated more often, uSpectrum MK350D or Rynx. lite?

uSpectrum MK350D ships an update every 2 months, and Rynx. lite every 2 months. Most recently, uSpectrum MK350D was updated on November 4, 2026 and Rynx. lite on November 1, 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.*