Report updated Jun 30, 2026
Calculator +
For students and professionals requiring both basic arithmetic and advanced mathematical functions like graphing and equation solving.
Calculator + is an established utilities app that is free with in-app purchases. With a 4.4/5 rating from 775.4K reviews, it shows polarized user reception. Users particularly appreciate simple and clean interface design makes daily calculations feel fast and efficient, though removal of real-time running balance display during long calculations disrupts user workflow remains a common concern.
What is Calculator +?
Calculator + is a scientific and graphing calculator app for iOS and Android, structured around a freemium model.
Users hire the app for rapid, clean mathematical problem-solving that avoids the cluttered interfaces of stock calculators, allowing them to complete homework and professional tasks with fewer input errors.
Current Momentum
v2.9 · 1w ago
Maintenance- Ships frequent UI-focused updates.
- Last major update March 2026.
Active Nemesis
Modulus Calculator
By Theodore Dubois
Other Rivals
7-Day Rank Pulse 🇺🇸
UtilitiesNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
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What Are The Key Features?
Trigonometric, logarithmic, and exponential functions.
Tools for solving quadratic, cubic, and linear systems.
Visualizes functions to identify minima, maxima, and intersections.
How much does it cost?
- Free tier: basic and scientific calculators
- Premium tier: advanced solvers, graphing, and unit converters
Freemium model gates advanced mathematical tools behind an upgrade, while maintaining a broad free-tier user base for ad-supported revenue.
Who Built It?
xNeat.com
View Publisher Intel →Enrichment in progress
Publisher profile available very soon
What other apps does xNeat.com make?
Water Eject
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Graphing Calculator
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Conduit Bending
Productivity
What do users think recently?
High confidence · Latest 120 of 1K total reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate simple and clean interface design makes daily calculations feel fast and efficient and comprehensive scientific and graphing functions provide value for students and professionals, but report removal of real-time running balance display during long calculations disrupts user workflow and aggressive monetization and pay-to-use features frustrate long-term loyal users.
What Users Love
What Frustrates Users
What Users Want
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 Calculator +?
Where is it available?
Localized markets (12)
How's The Utilities Market?
How does it evolve in the Utilities market?
Calculator + maintains top 200 rankings in the Tools category across multiple international markets, but the recent sentiment decline suggests its #4.63 rating is vulnerable to erosion. The gap between its free-tier reach and premium-tier conversion is widening as users reject the pay-walling of previously free features.
Rank progression
3 active rankings tracked — 30-day window
The rivals identified
Nemeses(1)
This app directly targets the iPad-first productivity segment, competing for the same power-user demographic that values high-precision math and visual workspace management.
Contenders(4)
Competes in the professional utility space by offering advanced workspace and data management features for power users.
Targets the minimalist segment of the market by providing a lightweight, no-frills alternative for basic and scientific arithmetic.
A high-velocity competitor that leverages a modern, feature-rich approach to attract users looking for smart history and currency conversion.
Competes by offering a high-precision, multitasking-ready experience that appeals to users who prioritize standard memory functions and iPad-native workflows.
Same space(3)
A mature utility app that competes for the same productivity-oriented users who value expression-based input and custom unit definitions.
Differentiators
- Allows for complex expression input, enabling users to perform calculations directly within the unit conversion interface.
- Includes a user-defined units feature, allowing for high levels of customization for unique or proprietary measurements.
Targets the technical subset of the utility market, competing for users who require high-precision scientific and engineering-grade conversions.
Differentiators
- Offers specialized engineering units that are not typically found in standard, general-purpose calculator or converter apps.
- Provides an ad-free interface, which is a significant differentiator for professional users prioritizing a clean experience.
Shares the utility-focused audience, providing a high-volume alternative for users who need quick, multi-category conversions.
Differentiators
- Integrates home screen widgets for rapid access to conversion tools without needing to open the app.
- Supports a wide array of multi-category conversions, making it a versatile tool for diverse professional requirements.
Compare Calculator + 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 Calculator +
Strengths to defend, gaps to attack
Core Strengths
- Equation-result simultaneous display
- Minimalist aesthetic
- Scientific function depth
Critical Frictions
- Subscription-gate migration
- Missing landscape mode
- Removed base conversion tools
Growth Levers
- Education-sector B2B partnerships
- Wearable-device calculator integration
Market Threats
- Modulus Calculator's review-driven visibility
- Specialized niche-tool fragmentation
What are the next best moves?
Restore running balance display because it is the top-cited workflow disruption → stabilize daily active usage
High-frequency complaint theme regarding workflow disruption.
Trade-off: Push the new graphing-theme sprint to Q4 — running balance is a core retention feature.
Audit subscription gates because legacy users report frustration with pay-walled core features → reduce churn
Aggressive monetization is the #2 complaint theme.
Trade-off: Pause the annual-tier price test — user sentiment recovery is the priority.
A counter-intuitive read
The app's aesthetic simplicity is its primary vulnerability, as it invites users to treat the tool as a disposable commodity rather than a professional-grade utility.
Feature Gaps vs Competitors
- Universal currency converter (available in Modulus Calculator)
- GST calculator (available in Modulus Calculator)
- Offline currency conversion (available in Cuspart)
Key Takeaways
Calculator + holds its category lead through superior equation visualization but bleeds long-term users due to aggressive monetization and feature regressions, so revenue growth hinges on restoring core utility to stabilize the user base.
Where Is It Heading?
Declining
The utility-calculator market is consolidating around specialized tools that offer higher precision and offline capability. Calculator + is currently exposed, as its maintenance-mode updates and restrictive monetization alienate the power users who drive organic growth through recommendations.
The removal of base conversion tools and running totals in the latest release disrupts power-user workflows, which accelerates churn toward specialized competitors.
Aggressive monetization of previously free features triggers negative sentiment, which compounds the rating drag already visible on the latest version.