# SLII® vs DroneDeploy Ground App

The clearest difference is rating: DroneDeploy Ground App at 4.5 against SLII®'s 3.3. DroneDeploy Ground App also leads on update cadence (weekly vs every 3 weeks). SLII®'s advantage is review sentiment (58% vs 41%) and iOS requirement (12.4 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.

DroneDeploy Ground App holds the better App Store score, 4.5 against 3.3. Both are backed by a comparable volume of ratings — 28 and 33 respectively. Written reviews complicate that: 58% of SLII®'s written reviews are positive against 41% of DroneDeploy Ground App's, so the app with the better star average is not the one people write more warmly about.

SLII® ships an update every 3 weeks, DroneDeploy Ground App weekly. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SLII® | DroneDeploy Ground App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (28 ratings)](https://appshunter.io/ios/app/slii/id536473591/reviews) | **[4.5 (33 ratings)](https://appshunter.io/ios/app/dronedeploy-ground-app/id1583870335/reviews)** |
| Number of ratings | 28 | **33** |
| Positive reviews | **58.3% of reviews** | 41.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 47 MB | 434 MB |
| Requires iOS | **12.4** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Ken Blanchard Companies](https://appshunter.io/developer/417829677) | [DroneDeploy](https://appshunter.io/developer/971358100) |

## What reviewers say

### SLII®

[App page](https://appshunter.io/ios/app/slii/id536473591)

This reference tool helps leaders and team members apply the SLII Model to improve relationships and performance. It provides guidance for critical leadership moments, offering diagnostic tools and actionable tips.

**Highlights:** Diagnosis wizard for development levels, Actionable tips for SLII principles, Interactive SLII Model visualization, On-demand expanded information, Guidance for leadership conversations

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

**In-app purchases:** none


### DroneDeploy Ground App

[App page](https://appshunter.io/ios/app/dronedeploy-ground-app/id1583870335)

Capture and manage ground-level project data for construction and industrial sectors. Document job sites with 360° photos and standard images, then sync to a platform for analysis and collaboration.

**Highlights:** 360° photo and walkthrough capture, Standard photo capture, Sync to DroneDeploy platform, Project data analysis and annotation, Team collaboration tools, Integration with industry tools

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Makes life easy
- 👍 Functional and quick uploads
- 👍 Smooth capture process
- 👍 Responsive and snappy

**What reviewers complain about**

- 🐛 Freezes, lags, slow
- 🐛 Buggy and unreliable
- 🐛 Extremely hard to login
- 🐛 Glitchy
- 🐛 App doesn't work on new iPhone

**Reported bugs**

- Spam email
- Freezes, lags, slow
- Constantly have to fight to log in
- Processing walks takes forever and is unreliable
- Fails to process a walk

**Requested features**

- New update for Insta X4 air compatibility
- Android app support
- Downloadable PDF with active 360 photos
- Support for Insta360 One R camera
- iPad optimization


## Frequently asked questions

### Is SLII® free?

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

### Is DroneDeploy Ground App free?

DroneDeploy Ground App is free to download, with no in-app purchases.

### Which has better reviews, SLII® or DroneDeploy Ground App?

DroneDeploy Ground App is rated higher. SLII® averages 3.3 out of 5 from 28 ratings, while DroneDeploy Ground App averages 4.5 from 33 ratings.

### Do SLII® or DroneDeploy Ground App have ads?

Neither SLII® nor DroneDeploy Ground App shows ads.

### Which is updated more often, SLII® or DroneDeploy Ground App?

SLII® ships an update every 3 weeks, and DroneDeploy Ground App weekly. Most recently, SLII® was updated on September 10, 2026 and DroneDeploy Ground App on September 22, 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.*