GR RVLevel vs Holyiot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GR RVLevel
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.
- Wireless vehicle leveling
- Displays height and degree needed
- Supports towable and motorhome RVs
- Level from driver's seat
- Requires GR RV-Leveler hardware
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GemRed’s GR RVLevel is a Wireless Vehicle Leveling System. This app accurately reports how much height and degree is required to reach a level position of a vehicle and tells you where that height and degree is needed. Greats for towable and motorhome vehicles. You can simple and efficient get your vehicle level from the comfort of your driver’s seat. This app requires a GR RV-Leveler hardware to use. Search for “rv level” on Amazon to find the GemRed’s RV leveler. Let’s level your RV easily!
Holyiot
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An app that can connect sensor devices through Bluetooth and display and record sensor data in real-time
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | GR RVLevel | Holyiot |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 10.0 |
| Further details — not scored | ||
| Size | 35 MB | 28 MB |
| Age rating | 12+ | 4+ |
| Developer | GemRed | Shenzhen Hong yi yun jia technology Co.,LTD |
In-app purchases
GR RVLevel
No in-app purchases
Holyiot
No in-app purchases
