# Implen NanoPhotometer vs ISC NIRScan

The clearest difference is iOS requirement: Implen NanoPhotometer at 10.0 against ISC NIRScan's 12.0. 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.

Implen NanoPhotometer ships an update every 3 months, ISC NIRScan every 2 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Implen NanoPhotometer | ISC NIRScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 54 MB | 38 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Implen Inc.](https://appshunter.io/developer/988716674) | [He Yi Hsieh](https://appshunter.io/developer/1081259026) |

## What reviewers say

### Implen NanoPhotometer

[App page](https://appshunter.io/ios/app/implen-nanophotometer/id988716675)

**Features:** macOS Compatibility

**In-app purchases:** none


### ISC NIRScan

[App page](https://appshunter.io/ios/app/isc-nirscan/id1414155482)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Implen NanoPhotometer free?

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

### Is ISC NIRScan free?

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

### Do Implen NanoPhotometer or ISC NIRScan have ads?

Neither Implen NanoPhotometer nor ISC NIRScan shows ads.

### Which is updated more often, Implen NanoPhotometer or ISC NIRScan?

Implen NanoPhotometer ships an update every 3 months, and ISC NIRScan every 2 months. Most recently, Implen NanoPhotometer was updated on October 26, 2026 and ISC NIRScan on October 25, 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.*