# Singular Light vs IDUNN Spa

The clearest difference is update cadence: IDUNN Spa at fortnightly against Singular Light's every 8 months. Singular Light's advantage is iOS requirement (8.0 vs 13.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Singular Light against 5.0 for IDUNN Spa. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Singular Light ships an update every 8 months, IDUNN Spa fortnightly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Singular Light | IDUNN Spa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/singular-light/id1634611433/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/idunn-spa/id6444607535/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 26 MB | 44 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [CNOGA Medical Ltd.](https://appshunter.io/developer/1249224534) | [IDUNN WATER](https://appshunter.io/developer/1647405695) |

## What reviewers say

### Singular Light

[App page](https://appshunter.io/ios/app/singular-light/id1634611433)

Easily track vital health information by connecting to medical devices. Monitor trends, view historical data, and securely share your health metrics with healthcare professionals.

**Highlights:** Connect CNOGA medical devices, Track blood pressure, Monitor oxygen saturation, View heart rate, Track trends over time, Share health data with professionals

**Features:** macOS Compatibility

**In-app purchases:** none


### IDUNN Spa

[App page](https://appshunter.io/ios/app/idunn-spa/id6444607535)

Control your Personalized Oxygen Delivery System remotely from any location. This application transforms your smart device into a user-friendly remote control for managing all aspects of your PODS™.

**Highlights:** Remote access to PODS™, Smart device integration, Wireless and cellular control, Easy user interface, Manage all PODS™ aspects

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

**In-app purchases:** none


## Frequently asked questions

### Is Singular Light free?

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

### Is IDUNN Spa free?

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

### Which has better reviews, Singular Light or IDUNN Spa?

Singular Light and IDUNN Spa are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Singular Light or IDUNN Spa have ads?

Neither Singular Light nor IDUNN Spa shows ads.

### Which is updated more often, Singular Light or IDUNN Spa?

Singular Light ships an update every 8 months, and IDUNN Spa fortnightly. Most recently, Singular Light was updated on October 20, 2026 and IDUNN Spa on October 24, 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.*