# Backflow Pro vs The Tonsorium by Juliet

The clearest difference is in-app purchases: The Tonsorium by Juliet at none against Backflow Pro's 5. Backflow Pro's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Backflow Pro ships an update every 3 weeks, The Tonsorium by Juliet every 4 months. The most recent releases landed on October 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Backflow Pro | The Tonsorium by Juliet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/backflow-pro/id1643496459/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 13 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Time Lock Documentation, LLC](https://appshunter.io/developer/1196195710) | [Tecwi Engineering GmbH](https://appshunter.io/developer/1462340550) |

## What reviewers say

### 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, Vision Pro support

**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 |


### The Tonsorium by Juliet

[App page](https://appshunter.io/ios/app/the-tonsorium-by-juliet/id6774598255)

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

**In-app purchases:** none


## Frequently asked questions

### Is Backflow Pro free?

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

### Is The Tonsorium by Juliet free?

The Tonsorium by Juliet is free to download, with no in-app purchases.

### Do Backflow Pro or The Tonsorium by Juliet have ads?

Neither Backflow Pro nor The Tonsorium by Juliet shows ads.

### Which is updated more often, Backflow Pro or The Tonsorium by Juliet?

Backflow Pro ships an update every 3 weeks, and The Tonsorium by Juliet every 4 months. Most recently, Backflow Pro was updated on October 27, 2026 and The Tonsorium by Juliet on October 6, 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.*