# SCR MAXFLO™ vs GridSure

The clearest difference is update cadence: GridSure at every 2 weeks against SCR MAXFLO™'s every 11 months. On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 4.6 for SCR MAXFLO™ against 4.5 for GridSure. Both are backed by a comparable volume of ratings — 5 and 8 respectively.

SCR MAXFLO™ ships an update every 11 months, GridSure every 2 weeks. The most recent releases landed on September 9, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | SCR MAXFLO™ | GridSure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/scr-maxflo/id1077499630/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/gridsure/id6746121952/reviews) |
| Number of ratings | 5 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 41 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [UtilityInnovation Group](https://appshunter.io/developer/1815251215) |

## What reviewers say

### SCR MAXFLO™

[App page](https://appshunter.io/ios/app/scr-maxflo/id1077499630)

This app calculates pressure drop, fluid velocity, Reynold's number, and friction factor for liquids and gases. It allows users to create custom projects, manage pipes, fluids, and fittings, and supports both metric and imperial units for efficient on-site work.

**Highlights:** Pressure drop calculation, Fluid velocity calculation, Reynold's number calculation, Friction factor calculation, Custom project creation, Pipe, fluid, and fitting management, Metric and imperial unit support

**Features:** macOS Compatibility

**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 SCR MAXFLO™ free?

SCR MAXFLO™ 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, SCR MAXFLO™ or GridSure?

SCR MAXFLO™ is rated higher. SCR MAXFLO™ averages 4.6 out of 5 from 5 ratings, while GridSure averages 4.5 from 8 ratings.

### Do SCR MAXFLO™ or GridSure have ads?

Neither SCR MAXFLO™ nor GridSure shows ads.

### Which is updated more often, SCR MAXFLO™ or GridSure?

SCR MAXFLO™ ships an update every 11 months, and GridSure every 2 weeks. Most recently, SCR MAXFLO™ was updated on September 9, 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.*