# GR RVLevel vs Holyiot

The clearest difference is update cadence: GR RVLevel at every 2 days against Holyiot's every 3 months. GR RVLevel also leads on iOS requirement (8.0 vs 10.0). 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.

GR RVLevel ships an update every 2 days, Holyiot every 3 months. The most recent releases landed on September 17, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | GR RVLevel | Holyiot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/gr-rvlevel/id1580502147/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Monetization | Free | — |
| Size | 35 MB | 28 MB |
| Requires iOS | **8.0** | 10.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [GemRed](https://appshunter.io/developer/1279222567) | [Shenzhen Hong yi yun jia technology Co.,LTD](https://appshunter.io/developer/1188616341) |

## What reviewers say

### GR RVLevel

[App page](https://appshunter.io/ios/app/gr-rvlevel/id1580502147)

This utility app works with specific hardware to wirelessly display the height and degree adjustments needed to level a vehicle. It's designed for towable and motorhome RVs, allowing users to achieve a level position from their driver's seat.

**Highlights:** Wireless vehicle leveling, Displays height and degree needed, Supports towable and motorhome RVs, Level from driver's seat, Requires GR RV-Leveler hardware

**Features:** macOS Compatibility

**In-app purchases:** none


### Holyiot

[App page](https://appshunter.io/ios/app/holyiot-sensor/id6449424647)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GR RVLevel free?

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

### Is Holyiot free?

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

### Do GR RVLevel or Holyiot have ads?

Neither GR RVLevel nor Holyiot shows ads.

### Which is updated more often, GR RVLevel or Holyiot?

GR RVLevel ships an update every 2 days, and Holyiot every 3 months. Most recently, GR RVLevel was updated on September 17, 2026 and Holyiot on May 16, 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.*