# GridPro vs Backflow Pro

The clearest difference is in-app purchases: GridPro at none against Backflow Pro's 5. GridPro also leads on iOS requirement (9.0 vs 15.6). Backflow Pro's advantage is device support (3 vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Backflow Pro sells 5 in-app purchases, starting at $3.99 per month. GridPro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for GridPro against 5.0 for Backflow Pro. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

GridPro ships an update monthly, Backflow Pro every 3 weeks. The most recent releases landed on June 8, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | GridPro | Backflow Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/gridpro/id854510474/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/backflow-pro/id1643496459/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 22 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [eFacility, LLC](https://appshunter.io/developer/1530623382) | [Time Lock Documentation, LLC](https://appshunter.io/developer/1196195710) |

## What reviewers say

### GridPro

[App page](https://appshunter.io/ios/app/gridpro/id854510474)

This app facilitates secure sharing of facility and construction project data through a collaborative system. It allows users to contribute and access information with time-stamped, user-identified entries, enhancing data integrity and risk management.

**Highlights:** Two-way collaboration, Secure, accessible, and updateable database, Time and date stamps on all data, User identification on all inputs, Controlled data attributes, Data integrity and risk reduction

**In-app purchases:** none


### Backflow Pro

[App page](https://appshunter.io/ios/app/backflow-pro/id1643496459)

This app digitizes backflow prevention documentation, creating secure, visual records with time-stamped photos and GPS data. It streamlines compliance letters, invoices, and repair tracking for building and facility professionals.

**Highlights:** Digital backflow prevention program creation, Time-stamped and GPS-stamped photo embedding, Electronic signature capture, Automated compliance letters and invoices, Cloud syncing across multiple devices, Scheduling calendar with push notifications, Organized file storage by project and client

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stand Alone Plan | $3.99 | per month |
| Bronze Plan | $29.99 | per month |
| Silver Plan | $49.99 | per month |
| Gold Plan | $71.99 | per month |
| Platinum Plan | $80.99 | per month |


## Frequently asked questions

### Is GridPro free?

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

### Is Backflow Pro free?

Backflow Pro is free to download, with in-app purchases available.

### Which has better reviews, GridPro or Backflow Pro?

GridPro and Backflow Pro are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do GridPro or Backflow Pro have ads?

Neither GridPro nor Backflow Pro shows ads.

### Which is updated more often, GridPro or Backflow Pro?

GridPro ships an update monthly, and Backflow Pro every 3 weeks. Most recently, GridPro was updated on June 8, 2026 and Backflow Pro on June 1, 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.*