Sewer Pipe Calculator vs FireSprinkPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sewer Pipe Calculator
Read full descriptionHide full description
Sewer Pipe Calculator designs and checks gravity sewer and storm drain pipes with the Manning equation for partially full circular pipes. Enter what you know and get what is missing. 6 GRAVITY CALCULATORS (FREE) • Velocity & Depth: flow, slope and diameter → velocity and water depth • Diameter from Flow: minimum diameter and the next commercial size from your catalog • Slope Range: minimum and maximum slope that meet velocity, depth and self-cleansing criteria • Minimum Slope & Diameter: when only the flow is known • Flow & Velocity from Depth: analyze an existing pipe • Flow Analysis: flow, velocity, hydraulic radius, h/D, Froude number and tractive force SELF-CLEANSING CHECK Tractive force τ = ρ·g·R·S next to the velocity, with a color verdict: self-cleansing OK or sedimentation risk. A pipe can meet the minimum velocity and still fail on tractive force. PIPE CATALOGS PVC, concrete, vitrified clay and corrugated HDPE (SI and US) with their Manning n and commercial diameters. PRO • Export any calculation to PDF and save/load calculations • Custom pipe catalogs STRUCTURES PACK Inverted siphon (automatic sizing), pump station (wet well volume, pump power, cycle times), weirs and overflows, minor losses and manholes, orifices and gates. FORCE MAIN PACK Total dynamic head with Hazen-Williams, economic diameter (Bresse) and water hammer (Joukowsky), with the TDH passed straight to the pump station. COLLECTOR DESIGNER Design a full sewer line segment by segment, like a spreadsheet: flow accumulates and invert levels propagate downstream, every segment is checked for velocity, tractive force, h/D, cover and surcharge, with a longitudinal profile and a PDF design table. SI and US units. English and Spanish. Works offline. For civil and sanitary engineers, designers and students working on sewer networks, storm drainage and simplified sewerage systems.
FireSprinkPro
Read full descriptionHide full description
FireSprinkPro is a professional-grade fire sprinkler hydraulic calculation app for fire protection engineers and designers. Design and analyse wet, dry, deluge, and foam-water sprinkler systems directly on your iPhone or iPad. FireSprinkPro uses the Hardy Cross iterative method with Hazen-Williams friction loss to accurately calculate flow and pressure throughout your pipe network. FEATURES • Pipe network node and branch editor • Hazen-Williams hydraulic calculations • Hardy Cross iterative solver • Automatic most demanding area selection • Demand vs supply curve analysis • Calculation report export • Import and export project files (.fsp) • Design and perform hydraulic calculations offline, with internet access required for account and licence verification • Sample project included to get started immediately DESIGNED FOR PROFESSIONALS FireSprinkPro is built for fire protection engineers, hydraulic designers, and contractors who need accurate, portable calculations in the field or office. All calculations follow standard fire protection hydraulic principles used in NFPA 13, SANS 10287, and similar codes.
Screenshots
Verdict
Sewer Pipe Calculator and FireSprinkPro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Sewer Pipe Calculator sells 3 one-off in-app purchases and FireSprinkPro sells 2 in-app purchases, starting at $17.49 per month. Whichever you choose, the download price is not the number that matters.
Sewer Pipe Calculator ships an update every 10 days, FireSprinkPro weekly. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | Sewer Pipe Calculator | FireSprinkPro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 31 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Transparent Blue Water LLC | Michael Fritz |
In-app purchases
Sewer Pipe Calculator
- SewerCalc Pro$2.99
- Structures Pack$3.99
- Sewer Designer$7.99
FireSprinkPro
- FireSprinkPro Monthly$17.491 Month
- FireSprinkPro Lifetime License$175.99
Questions
Is Sewer Pipe Calculator free?
Is FireSprinkPro free?
Do Sewer Pipe Calculator or FireSprinkPro have ads?
Which is updated more often, Sewer Pipe Calculator or FireSprinkPro?
Other comparisons















