Report updated Jun 28, 2026
Numerical²
For iOS users requiring a fast, scientific-capable calculator that integrates into system-wide workflows and widgets.
Numerical² is a well-regarded utilities app that is completely free. With a 4.8/5 rating from 1.3K reviews, it maintains solid user satisfaction. Users particularly appreciate real-time calculation history allows users to track and verify complex math sequences without re-entering data, though widget functionality remains inconsistent or slow to respond following the latest update for newer operating systems remains a common concern.
What is Numerical²?
Numerical² is a minimalist calculator for iOS that uses an expression-based input system and system-wide keyboard integration.
Users hire Numerical² to eliminate the friction of the equals-button workflow and maintain a clean, distraction-free environment for scientific calculations.
Current Momentum
v2.1 · 18mo ago
Zombie- Shipped iOS 18 compatibility update.
- Maintains stable 4.79 rating.
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
System-wide custom keyboard extension allowing calculation within any text field on iOS
Calculator interface accessible directly from the iOS Notification Center
Automatic cloud-based synchronization of equation history across devices
How much does it cost?
- Free version with full feature set
The app operates as a free utility with no visible subscription or IAP gates, focusing on user acquisition and brand authority.
Who Built It?
Providing a high-performance, real-time calculation experience for power users on iOS. Eliminating friction in scientific workflows through system-wide integration.
Portfolio
1
Apps
Explore the full Andrew J Clark report
Portfolio breakdown, audience, momentum, and every app published by Andrew J Clark.
What do users think recently?
Low confidence · 49 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a excited sentiment. Users appreciate real-time calculation history allows users to track and verify complex math sequences without re-entering data, but report widget functionality remains inconsistent or slow to respond following the latest update for newer operating systems.
Limited review volume (49 reviews). Sentiment analysis will deepen as more data lands.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Numerical²?
How's The Utilities Market?
Market outlook for this category
Available very soon
The rivals identified
Nemeses(1)
Dominates the utility calculator space with massive scale and consistent, high-frequency feature updates.
Differentiators
- Maintains a high-frequency release cadence of six updates in six months to ensure platform stability.
- Offers a broad, multi-platform utility suite that captures users across both iPhone and iPad form factors.
- Leverages a decade of market presence to maintain deep integration within the standard utility category.
Head to head
The target app must double down on its minimalist UX to differentiate from the feature-heavy, high-maintenance approach of the market leader.
Contenders(2)
A high-volume alternative that bridges the gap between simple utility and educational calculation tools.
Differentiators
- Utilizes a broad, recognizable branding strategy that appeals to a massive, general-purpose user base.
- Balances simple input methods with a wide array of secondary mathematical functions for diverse users.
A direct competitor in the utility space that provides advanced scientific functionality for power users.
Differentiators
- Provides specialized scientific functions that cater to engineering and academic users beyond basic arithmetic.
- Maintains a high update frequency to ensure compatibility with the latest iOS scientific calculation standards.
Same space(3)
A productivity-focused calculator that treats math as a text-based, note-taking experience.
Differentiators
- Uses a unique text-based interface that allows users to perform calculations within natural language notes.
- Targets prosumers and knowledge workers who need to document their calculation logic alongside the results.
A specialized educational tool that dominates the graphing niche, serving a distinct academic audience.
Differentiators
- Provides a world-class graphing engine that allows for complex visual representation of mathematical functions.
- Positions itself as an essential academic tool for students, creating a strong moat through educational adoption.
Adjacent educational tool that uses computer vision to solve problems, shifting the paradigm from manual entry.
Differentiators
- Integrates advanced computer vision technology to solve handwritten equations, bypassing manual keypad entry entirely.
- Leverages Google's ecosystem to provide step-by-step educational explanations rather than just providing the final result.
New entrants(1)
An aggressive, high-velocity competitor backed by Chegg that is rapidly expanding its educational feature set.
Differentiators
- Integrates deep educational support services that provide users with comprehensive, expert-led problem solving assistance.
- Maintains a rapid release cadence to continuously refine its problem-solving algorithms and user interface.
Compare Numerical² against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Numerical²
Strengths to defend, gaps to attack
Core Strengths
- System-wide keyboard extension replaces standard input workflows
- Minimalist expression-based interface reduces cognitive load
- iCloud history sync creates data-anchored switching costs
Critical Frictions
- Widget performance lag in the latest update
- No desktop version for laptop workflows
- Touch registration issues on rapid input
Growth Levers
- Desktop application development for workflow integration
- B2B education partnerships for scientific tools
- Wearable companion app for quick math
Market Threats
- Calculator₊ update cadence erodes platform-specific loyalty
- Chegg-backed Mathway expansion into educational problem solving
- Stock calculator feature parity
What are the next best moves?
Rebuild widget input logic because current responsiveness is the #1 complaint → restore daily active usage.
User reviews explicitly flag widget lag as the primary frustration post-update.
Trade-off: Push the desktop app prototype to Q3 — current widget churn is a higher retention risk.
Audit touch registration sensitivity because rapid-input errors are cited in reviews → improve calculation accuracy.
Touch registration issues on specific devices cause missed inputs during rapid sequences.
Trade-off: Pause theme creator updates — core calculation reliability is more critical to user trust.
A counter-intuitive read
The app's lack of monetization is its primary moat, as it prevents the feature bloat that forces users to abandon legacy calculators for cleaner, modern alternatives.
Feature Gaps vs Competitors
- Desktop application (available in Soulver 3 but missing here)
- Computer vision problem solving (available in Photomath but missing here)
Key Takeaways
Numerical² holds a loyal user base through its minimalist, expression-based design, but the sluggish widget performance threatens retention, so the team must prioritize input responsiveness to prevent users from reverting to the stock calculator.
Where Is It Heading?
Stable
The utility calculator market is consolidating around high-frequency update cadences and cross-platform availability. Numerical² remains stable but exposed, so the PM must address widget performance to prevent churn to competitors with better platform reliability.
Widget performance lag in the latest update creates friction, which risks eroding the daily active habit.
The ad-free, minimalist design continues to drive high user satisfaction compared to stock calculator alternatives.