uSpectrum MK350N vs Atomic Notes
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
uSpectrum MK350N
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MK350 is using advanced spectroscopic technique architecture; therefore, the measurement accuracy is better than traditional color sensors. Traditional spectrometer needs to use PC or notebook for data analysis, UPR RD Team combines all functions into MK350 to let users process data analysis operation easily. MK350 is a cost-effective LED Meter which provides CRIγCCTγLUXγΞ»pγSpectrumγCIE x,y 6 major functions. The light weight design and the measurement data which appear instantly without computer connection solutions both enhance the usage experience in the place where people live and work. It is the perfect measurement equipment that aids the LED industry and customers greatly. The 3.5-inch colored touch screen and simple interface keep up with the times. Measuring is made easy like never before. SD card storage is an essential function that proves itself useful after one does environmental measurements for the entire day. The additional Excel file and BMP file data saving selection are just wonderful for data analysis.
Atomic Notes
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Write Freely. Think Clearly. Stay Private. Atomic Notes, part of the Atomic Blend suite, is your privacy-first space to capture ideas, journal thoughts, and organize knowledge β all in one beautifully simple, end-to-end encrypted app. Why Atomic Notes? β Encrypted from the Ground Up β Your notes are secured with end-to-end encryption by default. β Lightweight & Distraction-Free β A clean, fast writing experience that lets you focus. β Organize Your Way β Use tags, folders, and search to stay on top of everything. β Sync Across Devices β Your notes, available anywhere β always private. β Unified with Atomic Blend β One subscription unlocks all apps in the suite. From fleeting thoughts to long-form writing, Atomic Notes helps you think and write with clarity β while keeping your data under your control. ----- About Atomic Blend Atomic Blend is a privacy-first, 100% open-source app suite that includes Atomic Task, Atomic Notes, and more β all designed to work together seamlessly under a single subscription. Built for people who value simplicity, transparency, and control, Atomic Blend is your alternative to bloated, data-hungry SaaS tools. No ads. No tracking. Just powerful tools that respect you. ----- Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://brandonguigo.notion.site/Politique-de-confidentialit-17591ec0b6688166b781cf05f89d3a2d
Screenshots
Verdict
The clearest difference is in-app purchases: uSpectrum MK350N at none against Atomic Notes's 2. uSpectrum MK350N also leads on iOS requirement (5.1.1 vs 13.0). Atomic Notes's advantage is update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Atomic Notes sells 2 in-app purchases, starting at $3.99 per month. uSpectrum MK350N asks for nothing beyond the download.
uSpectrum MK350N ships an update every 2 months, Atomic Notes monthly. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.
| Parameter | uSpectrum MK350N | Atomic Notes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Monthly β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 5.1.1 β better | 13.0 |
| Further details β not scored | ||
| Size | 29 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | United Power Research Technology Corporation | Brandon Guigo |
In-app purchases
uSpectrum MK350N
No in-app purchases
Atomic Notes
- Cloud Monthly$3.991 Month
- Cloud Yearly$34.991 Year









