# NVG APP vs YellowGrid

The clearest difference is rating: YellowGrid at 5.0 against NVG APP's 4.0. YellowGrid also leads on update cadence (fortnightly vs every 8 months). NVG APP's advantage is iOS requirement (14.0 vs 16.4). On price, ratings volume, 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.

YellowGrid holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

NVG APP ships an update every 8 months, YellowGrid fortnightly. The most recent releases landed on October 8, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | NVG APP | YellowGrid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/nvg-app/id6503288413/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/yellowgrid/id6747118921/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 13 MB | 94 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EP spa](https://appshunter.io/developer/1688557966) | [YellowGrid](https://appshunter.io/developer/1896555484) |

## What reviewers say

### NVG APP

[App page](https://appshunter.io/ios/app/nvg-app/id6503288413)

Easily set up and control NovingAIR's heat recovery units remotely. Configure units individually or as a single system with over ten operating modes and four airflow settings. Monitor indoor air quality and outdoor conditions.

**Highlights:** Remote setup and control, Individual or system management, Multiple operating modes, Adjustable airflow settings, Outdoor weather integration, Indoor air quality monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### YellowGrid

[App page](https://appshunter.io/ios/app/yellowgrid/id6747118921)

Monitor your solar energy production and consumption in real time. Track your earnings from selling surplus energy to the grid and manage your battery reserves. Connect your solar system to a network for trading and receive monthly proceeds.

**Highlights:** Real-time energy production and consumption monitoring, Surplus energy tracking to the grid, Earnings and monthly payment tracking, Battery capacity reservation, Connect solar systems for energy trading, Assistance with solar installation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NVG APP free?

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

### Is YellowGrid free?

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

### Which has better reviews, NVG APP or YellowGrid?

YellowGrid is rated higher. NVG APP averages 4.0 out of 5 from 1 ratings, while YellowGrid averages 5.0 from 1 ratings.

### Do NVG APP or YellowGrid have ads?

Neither NVG APP nor YellowGrid shows ads.

### Which is updated more often, NVG APP or YellowGrid?

NVG APP ships an update every 8 months, and YellowGrid fortnightly. Most recently, NVG APP was updated on October 8, 2026 and YellowGrid on September 26, 2026.

---

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