CalcFast vs its rivals

Side-by-side comparison against CalcFast's closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

	CalcFast This App	Calculator for iPad! Nemesis	Time Duration Calculator Contender	Fluid Mechanics Calculator Contender	Electric Motors Speed Calc Contender	Dash Calc: Simple Fast Math Contender	Calcvier - Keyboard Calculator Peer	CNVRT: SI Unit Conversion Tool Peer	Units Converters. Peer	Easy Converter - unit convert Peer
Core Identity
Developer	Hannes Sverrisson	7th Gear	俊华罗	V PUGAZHENTHI	Nitrio	Enbright LLC	Sergei Shpygar	Pascal Andraos	V PUGAZHENTHI	福恩毛
Category	Utilities	Utilities	Education	Utilities	Utilities	Utilities	Utilities	Utilities	Reference	Education
Platform	iOS	iOS	iOS, Android	iOS	iOS	iOS, Android	iOS	iOS	iOS	iOS
Store Metrics
Rating	4.2 / 5	4.7 / 5	5.0 / 5	4.5 / 5	4.0 / 5	5.0 / 5	4.4 / 5	4.5 / 5	4.4 / 5	4.5 / 5
Ratings Count	20	60,844	1	21	8	3	142	18	18	17
Price	Free	Free	Free	$2.99	$2.99	$4	$2.99	$4.99	$2.99	Free
Release Date	May 22, 2014	Jul 30, 2011	Jan 24, 2018	May 18, 2012	Jan 6, 2019	Nov 16, 2024	Jan 11, 2015	Feb 4, 2022	Jun 5, 2012	Mar 16, 2011
Last Updated	Apr 23, 2026	Dec 9, 2020	Jan 24, 2018	Feb 27, 2025	Jan 16, 2026	Apr 27, 2026	Jan 29, 2026	Dec 6, 2023	Mar 28, 2023	Apr 27, 2026
Sentiment & Reviews
Sentiment	positive	-	mixed	-	excellent	excellent	-	-	-	-
Score	75/100	-	52/100	-	90/100	90/100	-	-	-	-
Praises	Calculation tape feature provides a clear record for tracking and tallying complex commission amounts	-	-	-	The core application experience provides a satisfying and enjoyable utility for the user base	Minimalist design philosophy avoids intrusive advertisements and recurring monthly subscription costs for users	-	-	-	-
Complaints	Calculation history disappears following updates, causing frustration for users relying on saved data	-	-	-	-	-	-	-	-	-
Requests	-	-	-	-	-	-	-	-	-	-
Strategic Intel
Strengths	Today Extension provides system-level access for quick calculations Calculation tape enables financial tracking for commission-based users	75-significant-digit math engine supports professional-grade accuracy requirements Tactile leather-texture UI provides a distinct visual identity on iPad Integrated drawing and notes tab enables hybrid math-and-scratchpad workflows	Specialized focus on time-duration logic provides a cleaner, less cluttered UX for specific date-math tasks.	-	Focused interface tuned for motor physics Lightweight footprint avoids calculator bloat	Minimalist design philosophy reduces cognitive load for daily math tasks Smart History feature increases utility for recurring financial tracking One-time purchase model builds trust with privacy-focused users	-	-	-	Minimalist interface reduces cognitive load for basic tasks One-tap unit swap accelerates the primary user workflow
Weaknesses	Calculation history data loss post-update erodes user trust Widget button layout creates visual friction for quick tasks	Aggressive subscription prompts for basic features drive negative sentiment Lack of graphing or equation-solving modules limits appeal to STEM students Ad-supported model creates friction compared to ad-free engineering alternatives	2.6★ Android rating indicates poor user satisfaction. No paid tier limits revenue potential to ad-inventory.	-	Premium tier at $2.99 above free category median Low review volume limits social proof	Premium tier at $4.00 above category median No scientific functions restricts addressable market Limited user base restricts organic discovery velocity	-	-	-	No offline currency conversion limits international utility Lack of custom unit support restricts power-user retention No monetization strategy limits long-term development
Pricing	free	freemium	free	paid	paid	paid	paid	paid	paid	free
Momentum	Maintenance	Zombie	Zombie	-	-	Intense	-	-	-	Maintenance
Update Cadence	1 versions, 1 majors/6mo	1 versions	2 versions, ~2033d avg	-	-	5 versions	-	-	-	1 versions, 1 majors/6mo

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