PipeDN vs BaseCalc Plumbing Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PipeDN
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Need to determine the pipe size for a new industrial project? Want to check the maximum recommended flow rate for an existing fluid line? PipeDN is the ultimate pocket tool for industry professionals. Quickly find the ideal Nominal Diameter (DN) or maximum operating flow rate using velocity limits based on practical, field-tested engineering standards. Beyond delivering the exact requirement, the app generates a smart reference table of neighboring commercial pipe sizes (larger and smaller). This gives you the comprehensive technical data to choose the best design alternative for your facility. Highlighted Features: • Calculation Modules: "Find Ideal DN" and "Find Max Flow". • Native support for multiple pipe materials and schedules. • Professional PDF Reports: Export a detailed calculation memory directly to PDF. Include specific pipeline TAGs for customized, ready-to-archive engineering results. • Custom Units: Fully adapt pressure, temperature, flow rate, and diameter unit sets to match your region's standard. • Embedded Physical Tables: The Steam module features built-in thermodynamic properties for precise dynamic density tracking. Supported Fluids & Applications: • Water & Condensate: Treated Water, Condensate (Pump Discharge, Pump Suction, Steam Trap Return). • Steam: Advanced sizing targeting Saturated Steam and Superheated Steam lines. • Process Gases: Combustion Air, Flammable & Non-Flammable Gases, N₂, O₂, LPG. • Compressed Air: Limits tailored for Main Lines and Secondary Branches. • Vacuum Systems (Manifolds, Separators, Blowers). • Pulp & Paper Industry Niche: Exclusive calculation module for Cellulose Pulp responding to various consistency levels (up to 6%), as well as comprehensive chemical recovery liquors (Black Liquor in 4 concentrations, Green Liquor, Lime Mud, Dregs, Filtrate, Alkalis, and Tall Oil Soap). • Common Chemicals: Sodium Hydroxide, Sulphuric Acid, Antifoams, and Lubricating Oils. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
BaseCalc Plumbing Calculator
This professional tool offers 18 essential calculators for plumbing field work, including pipe sizing, pressure drop, and drainage. It saves calculations, generates job worksheets, and exports PDFs, all while working offline.
- 18 plumbing calculators
- Pipe sizing and pressure drop
- Drainage and vent sizing
- Water heater and gas pipe calculations
- Save calculation history
- Generate job worksheets
- Export PDF worksheets
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BaseCalc Plumbing Calculator is a plumbing calculator for field math, worksheets, materials, and saved calculation history. Run pipe sizing, pressure drop, drainage, vent sizing, water heater, gas pipe, pump head, fixture unit, septic, and other plumbing calculator checks on site, then save the result for the job. 18 CALCULATORS FOR DAILY FIELD WORK • Pipe Velocity — velocity from GPM and nominal pipe size. • Flow Rate — GPM from velocity and nominal pipe size. • Pipe Sizing — minimum pipe size from GPM and max velocity. • Pressure Drop — Hazen-Williams pressure loss. • Drainage Sizing — fixture units to minimum drainage pipe diameter. • Vent Sizing — fixture units plus vent length to minimum vent diameter. • Water Heater — first-hour rating and recovery estimate. • Gas Pipe Sizing — BTU/hr and length to minimum gas pipe size. • Pump Head — total dynamic head from lift, friction, and pressure. • Pipe Volume — gallons of water in a given length of pipe. • Water Pressure — pressure and head conversion. • Pipe Expansion — thermal expansion length change. • Fixture Units — count common fixtures to total fixture units. • Water Meter Sizing — fixture units to meter size. • Irrigation Flow — zone GPM from heads and GPM per head. • Septic Tank — bedrooms and daily flow to minimum tank volume. • Grease Interceptor — fixture units or GPM to interceptor size. • Backflow Pressure — pressure loss across backflow preventer. EVERY RESULT IS EXPLAINED • Clear sizing messages and pass/fail where applicable. • The governing limit, final answer, and calculation breakdown. • Saved local history so you keep a job-site record. JOB RECORDS, MATERIALS, AND WORKSHEETS • Save job contacts with site notes. • Build job worksheets with scope, quantities, and site notes. • Export worksheet PDFs for internal handoff or customer context. • Plan common pull-list items before rough-in, service, and closeout. • Send the finished billing handoff to SpeakSheet for the final invoice. DEVICE-LOCAL FOR THE FIELD • Works offline by default. • No BaseCalc account or cloud sync. • Job contact, worksheet, setting, and calculation data stays on this device, protected by your device security. • There is no BaseCalc cloud option. • Dark and light themes with a high-contrast job-site interface. BaseCalc Plumbing is a professional reference tool. Always verify against current industry standards, manufacturer data, and local codes. The authority having jurisdiction has the final say. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
PipeDN and BaseCalc Plumbing Calculator 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. PipeDN sells 3 in-app purchases, starting at $7.99 per month and BaseCalc Plumbing Calculator sells 2 in-app purchases, starting at $7.00 per month. Whichever you choose, the download price is not the number that matters.
PipeDN ships an update every 3 weeks, BaseCalc Plumbing Calculator monthly. The most recent releases landed on September 18, 2026 and September 4, 2026 respectively.
| Parameter | PipeDN | BaseCalc Plumbing Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 40 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | AQUILES DE LIMA | BASEMAPPED LLC |
In-app purchases
PipeDN
- PipeDN Pro$7.991 Month
- PipeDN Pro$49.991 Year
- PipeDN Pro$79.99
BaseCalc Plumbing Calculator
- Plumbing Pro Monthly$7.001 Month
- Plumbing Pro Yearly$50.001 Year





