# Door Minder vs GridSure

The clearest difference is review sentiment: GridSure at 100% against Door Minder's 14%. GridSure also leads on rating (4.5 vs 2.1). Door Minder's advantage is iOS requirement (11.0 vs 16.4). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GridSure holds the better App Store score, 4.5 against 2.1. Both are backed by a comparable volume of ratings — 10 and 8 respectively. Written reviews point the same way: 14% of Door Minder's written reviews are positive against 100% of GridSure's.

Door Minder ships an update monthly, GridSure every 2 weeks. The most recent releases landed on June 6, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Door Minder | GridSure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (10 ratings)](https://appshunter.io/ios/app/door-minder/id1555729845/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/gridsure/id6746121952/reviews)** |
| Number of ratings | **10** | 8 |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 9 MB | 41 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Lawson](https://appshunter.io/developer/1380900677) | [UtilityInnovation Group](https://appshunter.io/developer/1815251215) |

## What reviewers say

### Door Minder

[App page](https://appshunter.io/ios/app/door-minder/id1555729845)

Enhance your home's safety with a low-cost, easy-to-install security system for your doors. It offers password-protected communication and long battery life without needing Wi-Fi or a mobile app for basic monitoring.

**Highlights:** Low-cost safety and security, Easy 2-minute installation, Works with sectional and tilt doors, Up to 150 foot outdoor range, Secure, password protected communication, Extra long-life battery, Low battery notification

**In-app purchases:** none


### GridSure

[App page](https://appshunter.io/ios/app/gridsure/id6746121952)

Provides real-time visibility, control, and diagnostics for electric power systems. Enables faster response, reduced downtime, and optimized grid performance for utility and large energy users.

**Highlights:** Real-time visibility, Control of electric power systems, Diagnostics for power systems, Actionable grid intelligence, Faster response times, Downtime reduction, Grid performance optimization

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

**In-app purchases:** none


## Frequently asked questions

### Is Door Minder free?

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

### Is GridSure free?

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

### Which has better reviews, Door Minder or GridSure?

GridSure is rated higher. Door Minder averages 2.1 out of 5 from 10 ratings, while GridSure averages 4.5 from 8 ratings.

### Do Door Minder or GridSure have ads?

Neither Door Minder nor GridSure shows ads.

### Which is updated more often, Door Minder or GridSure?

Door Minder ships an update monthly, and GridSure every 2 weeks. Most recently, Door Minder was updated on June 6, 2026 and GridSure on August 13, 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.*