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Open Channel Flow Pro vs its rivals

Side-by-side comparison against Open Channel Flow Pro's closest competitors: identity, store metrics, ratings & sentiment, and strategic intel.

Open Channel Flow Pro
This App
SureFire Ag Flow Calculator
Peer
Paribus Calculator
Peer
SSAB WeldCalc
Peer
Deflection Lite
Peer
POLY / multiscreen calculator
New Kid
Not Another Twin Calculator
New Kid
Core Identity
DeveloperAlexius AcademiaSureFire Ag SystemsAdam SolesbySSAB ABBlue KetchepAlessandro SalvioniAndy Arevalo
CategoryProductivityProductivityBusinessProductivityProductivityProductivityProductivity
PlatformiOSiOSiOSiOSiOS, AndroidiOSiOS, Android
Store Metrics
Rating1.7 / 54.5 / 53.0 / 54.2 / 54.4 / 50.0 / 50.0 / 5
Ratings Count32254500
PriceUSD2.99FreeFreeFree$0.99$2.99$0.99
Release DateJul 28, 2021Feb 6, 2014Dec 18, 2013Nov 29, 2018May 30, 2015Apr 20, 2026Nov 23, 2025
Last UpdatedSep 19, 2025Nov 3, 2018Sep 2, 2025May 16, 2022Feb 22, 2024Apr 20, 2026Nov 23, 2025
Sentiment & Reviews
Sentimentterrible-mixedpositiveterrible--
Score10/100-50/10080/10010/100--
Praises--
  • Natural language entry
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Complaints--
  • PRO tier gating
-
  • Clumsy user interface design makes navigating core application functions difficult for daily users
  • Limited feature set fails to provide sufficient value for the purchase price
--
Requests-------
Strategic Intel
Strengths
  • Rating curve generation provides specialized utility for hydraulic modeling.
  • Technical reference guides function as a specialized B2B support moat for SureFire hardware owners.
  • Natural language entry mimics conversational math for quick business modeling
  • Goal seek value dial provides interactive variable testing missing in standard calculators
  • Technical accuracy for SSAB steel grades functions as a B2B distribution barrier into professional fabrication partnerships
  • Interactive load-dragging interface reduces time-to-result for structural setups
  • Permalink export enables viral design sharing among professional teams
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Weaknesses
  • 1.67-star rating indicates critical stability failures.
  • $2.99 price point without a trial limits acquisition.
  • No updates since 2018 creates a perception of abandonment.
  • Manual data entry lacks modern efficiency.
  • 3-star rating indicates poor user satisfaction with current interface reliability
  • PRO tier gating of core spreadsheet features limits free-tier utility
  • Text-heavy input interface lacks the visual interaction found in modern engineering apps
  • Premium tier lacks perceived value due to interface clumsiness
  • 0-rating on Android indicates lack of platform-specific optimization
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Pricingpaidfreefreemiumfreepaidpaidpaid
MomentumZombieZombieZombieZombieZombie--
Update Cadence1 versions, 1 majors/6mo1 versions, 1 majors/6mo1 versions4 versions, 1 majors/6mo, ~419d avg5 versions--

Compare Open Channel Flow Pro head-to-head

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Open Channel Flow Pro, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

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