FlowAnalyzer vs Calque
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlowAnalyzer
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FlowAnalyzer, Water Pipe Network Analyzer brings professional hydraulic analysis to your mobile device. Analyze, visualize, and optimize water distribution networks with powerful simulation tools powered by industry-standard EPANET 2.2 engine. PROFESSIONAL ANALYSIS Run comprehensive hydraulic simulations to analyze pressure, flow, velocity, and water quality throughout your network. Identify issues like low pressure zones, high velocity areas, and optimization opportunities with real-time visual feedback. POWERFUL VISUALIZATION View your network with color-coded nodes and pipes that instantly show hydraulic conditions. Interactive legend shows pressure ranges, velocity zones, and system status at a glance. Zoom up to 2000x to inspect individual components in detail. KEY FEATURES • Import and analyze EPANET .inp files • Run steady-state and extended period simulations • Interactive network visualization with color coding • View pressure, head, demand, flow, and velocity results • Detailed node and pipe properties • Network statistics and component counts • Real-time simulation warnings and alerts • Sample networks included for learning FREE VERSION: • Load networks up to 100 nodes • Run hydraulic simulations • View pressure maps over time • Create and edit patterns FLOWANALYZER PRO ($9.99 one-time): • Unlimited network size • Export results to PDF reports • Export data to CSV • Save changes to INP files • Background maps (coming soon) No subscription required - pay once, use forever. DESIGNED FOR PROFESSIONALS Built for water engineers, hydraulic consultants, urban planners, and water utility professionals. Whether you're analyzing a small neighborhood network or a complex city-wide system with thousands of nodes, Water Network Analyzer handles networks of any size. FIELD-READY Analyze networks on-site, in the field, or in the office. No internet connection required for simulations. Import files from cloud storage, email, or local storage. TECHNICAL CAPABILITIES • Supports junctions, tanks, and reservoirs • Handles pipes, pumps, and valves • Pressure-dependent demand analysis • Hydraulic convergence warnings • Extended period simulation (EPS) • Time-based analysis with interactive timeline EDUCATIONAL TOOL Perfect for students and professors teaching hydraulic engineering, water resources, or civil engineering courses. Use included sample networks to learn hydraulic principles and network behavior. ABOUT THE ENGINE Powered by EPANET 2.2, the industry-standard hydraulic modeling engine developed by the U.S. Environmental Protection Agency. Water Network Analyzer is an independent application and is not affiliated with, endorsed by, or sponsored by the U.S. Environmental Protection Agency. GET STARTED Import your existing .inp files. Run simulations with a single tap and instantly see results visualized on your network. Download Water Network Analyzer today and bring professional hydraulic analysis to your mobile device.
Calque
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The calendar on your fridge is probably the most accurate one you own, and it syncs to nothing. Calque fixes that. photograph the wall calendar, the paper planner, the whiteboard grid at work. it finds the grid, reads what's written in each box, and hands you a list of events to check before anything touches your real calendar. you fix the one it misread, toss the one about someone else's dentist, and add the rest to your calendar or share an .ics anywhere. Two ways to read: The free tier runs entirely on your device. the photo never leaves your phone, full stop. it's honest work, best with printed or neat handwriting. Calque Plus ($2.99/month or $23.99/year) sends the photo to a cloud model that reads real handwriting, the kind where "soccer 4:30" slants uphill into the margin. 200 scans a month, which is a lot of fridge calendars. images are processed and deleted, and your scan history lives on your device, not our servers. Either way you review before anything is saved. Calque writes ink colors to matching calendars too, so the red pen stays the family calendar and the blue pen stays work. one subscription covers the app and calque.ponderance.dev. No accounts needed for the free tier. no ads, no tracking, no selling your data. it reads your calendar, that's it. terms of use: https://ponderance.dev/terms privacy policy: https://ponderance.dev/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: FlowAnalyzer at 15.6 against Calque's 17.0. On price, ads, in-app purchases and device support 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. FlowAnalyzer sells 1 one-off in-app purchase and Calque sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | FlowAnalyzer | Calque |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Transparent Blue Water LLC | Anmol Saxena |
In-app purchases
FlowAnalyzer
- FlowAnalyzer Pro$9.99
Calque
- Calque Plus (Monthly)$2.991 Month
- Calque Plus (Yearly)$23.991 Year









