Differential Pressure vs MachBackflow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Differential Pressure
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The “Differential Pressure” transmits the data via audio jack. Currently, this App can be used on Kane Device, which measures the pressure. This app displays the graph of the measured data and is able to send the data via email.
MachBackflow
This app streamlines backflow prevention assembly testing by capturing real-time pressure readings or allowing manual entry. It automatically generates accurate reports and manages all your tests efficiently from the field.
- Real-time pressure capture
- Supports all assembly types and procedures
- Autofill property and assembly information
- Accurate, error-free PDF reports
- Cloud synchronization
- Powerful search and filters
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MachBackflow is the ultimate mobile solution for backflow prevention assembly testing. Whether you’re using the Mid-West® Instrument 855® Digital Test Kit, the industry-leading 845® Test Kit, or another model of test kit, the app puts complete control in the hands of the tester. Capture real-time pressure readings with the 855® or manually enter results from any test kit. Generate reports automatically and manage all your tests with ease — right from the field. Key Features: Real-Time Pressure Capture Instantly record pressure values from your test kit – 855® Digital, 845®, and other test kits. Supports All Assemblies & Procedures Test RP, DC, PVB, and SVB assemblies using all known procedures with full compliance. Autofill Property & Assembly Info Pre-fill test forms using address or serial number lookup, or enter details manually. Accurate + Error-Free Reports Eliminate handwriting errors. Sync directly to the cloud and generate PDF test reports on the spot. Powerful Search & Filters Quickly retrieve past tests by status (Pass, Fail, Repair) or assembly type.
Screenshots
Verdict
The clearest difference is in-app purchases: Differential Pressure at none against MachBackflow's 3. Differential Pressure also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.6). MachBackflow's advantage is update cadence (every 2 months vs every 4 months). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MachBackflow sells 3 one-off in-app purchases. Differential Pressure asks for nothing beyond the download.
Differential Pressure ships an update every 4 months, MachBackflow every 2 months. The most recent releases landed on October 26, 2026 and September 18, 2026 respectively.
| Parameter | Differential Pressure | MachBackflow |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 4 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Kane Asia Inc. | WTM Solutions, LLC |
In-app purchases
Differential Pressure
No in-app purchases
MachBackflow
- Credits 10$24.99
- Credits 100$174.99
- Credits 250$299.99
Questions
Is Differential Pressure free?
Is MachBackflow free?
Do Differential Pressure or MachBackflow have ads?
Which is updated more often, Differential Pressure or MachBackflow?
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