# EnvLogger Viewer vs Lumisound

The clearest difference is update cadence: Lumisound at every 8 days against EnvLogger Viewer's every 2 months. EnvLogger Viewer's advantage is iOS requirement (14.0 vs 17.0). 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.

EnvLogger Viewer ships an update every 2 months, Lumisound every 8 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | EnvLogger Viewer | Lumisound |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 2 MB | 3 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Electricblue, CRL](https://appshunter.io/developer/1490568569) | [JACK MOSS](https://appshunter.io/developer/1889032796) |

## What reviewers say

### EnvLogger Viewer

[App page](https://appshunter.io/ios/app/envlogger-viewer/id1490568570)

Communicate with contactless temperature loggers using NFC. Configure missions, plot data, and save it as CSV files for easy import into analysis software. Share your data instantaneously.

**Highlights:** NFC communication with EnvLoggers, Configure missions, Plot mission data, Save data as CSV, Instantaneous data sharing, Human-readable CSV format

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumisound

[App page](https://appshunter.io/ios/app/lumisound/id6761346520)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EnvLogger Viewer free?

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

### Is Lumisound free?

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

### Do EnvLogger Viewer or Lumisound have ads?

Neither EnvLogger Viewer nor Lumisound shows ads.

### Which is updated more often, EnvLogger Viewer or Lumisound?

EnvLogger Viewer ships an update every 2 months, and Lumisound every 8 days. Most recently, EnvLogger Viewer was updated on October 5, 2026 and Lumisound on October 18, 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.*