# Grand Design Compass Connect vs SLO/SLA Calc

The clearest difference is review sentiment: SLO/SLA Calc at 100% against Grand Design Compass Connect's 8%. SLO/SLA Calc also leads on rating (5.0 vs 3.9). Grand Design Compass Connect's advantage is price (Free vs $1.99) and ratings volume (503 vs 1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Grand Design Compass Connect is free to download; SLO/SLA Calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SLO/SLA Calc holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Grand Design Compass Connect has 503 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 8% of Grand Design Compass Connect's written reviews are positive against 100% of SLO/SLA Calc's.

Grand Design Compass Connect ships an update every 3 weeks, SLO/SLA Calc every 11 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Grand Design Compass Connect | SLO/SLA Calc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.9 (503 ratings)](https://appshunter.io/ios/app/grand-design-compass-connect/id1478286941/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/slosla-calc/id6789262199/reviews)** |
| Number of ratings | **503** | 1 |
| Positive reviews | 8.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | **Free** | Paid |
| Size | 238 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lippert Components, Inc.](https://appshunter.io/developer/867023615) | [Ruben Calzadilla](https://appshunter.io/developer/1130032354) |

## What reviewers say

### Grand Design Compass Connect

[App page](https://appshunter.io/ios/app/grand-design-compass-connect/id1478286941)

Manage and customize your RV's smart home features from your mobile device. Control slides, awnings, monitor levels, and create custom modes for personalized trips. Enhance your RV experience with advanced features like leveling, generator control, and remote device management.

**Highlights:** Customizable Modes, Favorite Device Selection, Slide and Awning Control, Battery and Water Level Monitoring, Trip Planning Checklists, RV Leveling System, Remote Device Control

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Handy features
- 🚀 Works great
- 🔒 Robust security

**What reviewers complain about**

- 🐛 Buggy after updates
- 🔒 Unnecessary login requirements
- 🔋 High battery consumption
- 🚫 Missing support for models
- 🚫 Unreliable connection

**Reported bugs**

- Bluetooth connection issues
- Checklists not syncing
- HVAC controls resetting temperature
- Leveling system interface problems
- Tire Linc screen causing in-motion lockout

**Requested features**

- Add CarPlay support
- Display tank levels
- Larger fonts for TireLinc
- Custom labels for slide outs
- Option to disable in-motion lockout


### SLO/SLA Calc

[App page](https://appshunter.io/ios/app/slosla-calc/id6789262199)

This tool helps engineers and operators model system availability and evaluate designs before deployment. It calculates availability for various configurations, estimates device reliability, and allows users to build and visualize complex systems. Generate professional PDF reports and review key definitions for availability and reliability.

**Highlights:** Calculate system and device availability, Model series, parallel, and N:M designs, Estimate device availability using MTBF, MTTR, Save and reuse devices/subsystems as Blocks, Build larger Systems by connecting Blocks, Visualize system architecture, Generate and share PDF reports

**In-app purchases:** none


## Frequently asked questions

### Is Grand Design Compass Connect free?

Grand Design Compass Connect is free to download, with no in-app purchases.

### Is SLO/SLA Calc free?

SLO/SLA Calc costs $1.99, with no in-app purchases.

### Which has better reviews, Grand Design Compass Connect or SLO/SLA Calc?

SLO/SLA Calc is rated higher. Grand Design Compass Connect averages 3.9 out of 5 from 503 ratings, while SLO/SLA Calc averages 5.0 from 1 ratings.

### Do Grand Design Compass Connect or SLO/SLA Calc have ads?

Neither Grand Design Compass Connect nor SLO/SLA Calc shows ads.

### Which is updated more often, Grand Design Compass Connect or SLO/SLA Calc?

Grand Design Compass Connect ships an update every 3 weeks, and SLO/SLA Calc every 11 days. Most recently, Grand Design Compass Connect was updated on November 7, 2026 and SLO/SLA Calc on October 31, 2026.

---

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