# Nobi lights vs FITSystem

The clearest difference is update cadence: FITSystem at fortnightly against Nobi lights's every 4 months. Nobi lights's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.6). On price, 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.

Nobi lights ships an update every 4 months, FITSystem fortnightly. Both last shipped on September 23, 2026.

## The numbers

| Metric | Nobi lights | FITSystem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fitsystem/id6747683029/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 34 MB | 33 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nobi BV](https://appshunter.io/developer/1506296838) | [NuRelm, Inc.](https://appshunter.io/developer/1133984813) |

## What reviewers say

### Nobi lights

[App page](https://appshunter.io/ios/app/nobi-lights/id1506296839)

**Features:** Vision Pro support

**In-app purchases:** none


### FITSystem

[App page](https://appshunter.io/ios/app/fitsystem/id6747683029)

This mobile application is designed for a specific research study, requiring specialized hardware for use. It is intended for participants involved in the NIH-funded research project.

**Highlights:** Research study participation, Requires specialized hardware, NIH-funded project integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Nobi lights free?

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

### Is FITSystem free?

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

### Do Nobi lights or FITSystem have ads?

Neither Nobi lights nor FITSystem shows ads.

### Which is updated more often, Nobi lights or FITSystem?

Nobi lights ships an update every 4 months, and FITSystem fortnightly. Most recently, Nobi lights was updated on September 23, 2026 and FITSystem on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*