Report updated May 6, 2026
Calculator #
For students, engineers, and scientific professionals requiring a mobile alternative to traditional graphing calculators.
Calculator # is a challenged utilities app that is free with in-app purchases. With a 4.4/5 rating from 800.4K reviews, it faces significant user friction. Users particularly appreciate simple and accurate calculation logic provides reliable utility for everyday math tasks, though aggressive full-screen advertisements interrupt core functionality and degrade the user experience remains a common concern.
What is Calculator #?
Calculator # is a multi-function utility app for iOS and Android providing scientific, algebraic, and graphing tools for students and professionals.
Users hire the app to replace dedicated hardware graphing calculators with a mobile-first, textbook-style interface that handles complex algebraic and scientific workflows.
Current Momentum
v9.1 (886477075) · 1mo ago
MaintenanceNo new feature build or event in recent patches. The app ships bug fixes only at a ~6-week cadence.
Active Nemesis
Calculator₊
By Impala Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
UtilitiesNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Uses camera input to identify and solve mathematical expressions
Converts handwritten mathematical input into digital expressions
Renders equations exactly as they appear in academic textbooks
How much does it cost?
- Free tier with core calculation features
- Premium tier via In-App-Purchase for advanced solvers and recognition features
Freemium model gates advanced AI and recognition tools behind one-time or recurring purchases while maintaining a high-utility free base.
Who Built It?
Incpt.Mobis
Providing high-performance mathematical and utility tools designed to replace legacy hardware for students and professionals.
Portfolio
10
Apps
What other apps does Incpt.Mobis make?
Calculator ∞
10bII Financial Calculator PRO
Graphing Calculator Plus AI
Graphing Calculator X84
Currency & Unit Converter #
Math Problem Solver ∞
Explore the full Incpt.Mobis report
Portfolio breakdown, audience, momentum, and every app published by Incpt.Mobis.
What do users think recently?
High confidence · 99 reviews analyzed · Based on 99 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a frustrated sentiment. Users appreciate simple and accurate calculation logic provides reliable utility for everyday math tasks, but report aggressive full-screen advertisements interrupt core functionality and degrade the user experience.
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 #?
How's The Utilities Market?
Market outlook for this category
Available very soon
The rivals identified
Nemeses(1)
This app dominates the utility calculator space with massive scale and high-frequency release cycles that directly challenge our market share.
Differentiators
- Maintains a high-velocity release cadence of nine updates in six months to ensure platform stability.
- Leverages a long-standing market presence since 2010 to build deep user trust and brand recognition.
- Optimized specifically for the iPad form factor, capturing the tablet-first utility user segment.
Head to head
The target app must pivot toward a specialized, high-performance niche to avoid being commoditized by the scale and update velocity of this dominant incumbent.
Contenders(3)
A direct utility-category competitor that mirrors our target audience and feature set closely.
Differentiators
- Targets the same general-purpose utility user base with a simplified, no-nonsense interface design.
- Maintains a stable, mature feature set that prioritizes reliability over rapid, experimental feature iteration.
Strong academic positioning makes this a primary choice for users requiring advanced graphing and geometry tools.
Differentiators
- Provides advanced geometric construction tools that standard utility calculators lack for the student audience.
- Maintains a consistent release cycle to support evolving educational standards and classroom curriculum requirements.
A powerful education-focused competitor that captures the student demographic through specialized problem-solving capabilities.
Differentiators
- Integrates deep educational problem-solving workflows that go beyond standard arithmetic and graphing functions.
- Backed by the Chegg ecosystem, providing a clear path for monetization through premium educational services.
Same space(2)
Represents the shift toward AI-driven math assistance, competing for the education-focused user segment.
Differentiators
- Utilizes AI-driven solving engines to provide step-by-step explanations for complex algebraic and calculus problems.
- Positions itself as a learning companion rather than just a static calculation utility.
A specialized scientific tool that serves the power-user segment within the utility category.
Differentiators
- Features a high-precision scientific interface designed for engineering and complex mathematical calculations.
- Maintains a loyal user base by focusing on technical accuracy rather than broad-market utility appeal.
New entrants(1)
High release velocity indicates an aggressive attempt to capture market share through rapid iteration.
Differentiators
- Rapidly iterating on UI/UX based on recent user feedback to differentiate from stagnant legacy calculators.
- Focusing on lightweight performance to attract users frustrated by heavy, ad-laden utility applications.
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
- Mathematical display engine functions as a brand moat by increasing academic switching costs
- History tape retention loop reduces friction for repetitive multi-step calculations
Critical Frictions
- Aggressive full-screen ad frequency drives high churn among core utility users
- Recent UI regressions removed essential quick-answer displays, alienating long-term power users
Growth Levers
- Integration of unit and currency conversion tools would close parity gaps with stock calculators
- Educational partnerships could provide a B2B distribution channel for the premium solver features
Market Threats
- Calculator₊ release velocity (nine updates in six months) siphons users frustrated by technical regressions
- Chegg-backed Mathway captures the student segment through specialized educational problem-solving workflows
What are the next best moves?
Reduce ad frequency in the free tier because high-frequency ads are the top churn driver → improve retention
Sentiment analysis identifies aggressive ads as the #1 complaint theme.
Trade-off: Pause the development of new AI-solver features — ad-driven churn has a higher revenue impact than new feature acquisition.
Restore quick-answer display because its removal is a top-cited UI regression → recover power-user efficiency
User complaints highlight the removal of this feature as a primary source of interface confusion.
Trade-off: Deprioritize the 2D graph zoom-animation polish — restoring core utility is more critical for sentiment recovery.
A counter-intuitive read
The app's high rating is a lagging indicator that masks the current churn crisis; the recent shift to aggressive monetization is actively destroying the brand equity that previously sustained its market position.
Feature Gaps vs Competitors
- Unit and currency conversion (available in stock calculators but missing here)
- Advanced geometric construction tools (available in GeoGebra but missing here)
Key Takeaways
Calculator # maintains a strong feature set for academic users, but aggressive monetization and recent UI regressions are actively driving churn to more stable incumbents, so the PM must prioritize ad-frequency reduction to stabilize the user base.
Where Is It Heading?
Declining
The utility calculator market is consolidating around high-velocity, stable incumbents, leaving Calculator # exposed to churn. Unless the team pivots from aggressive monetization to restoring core interface reliability, the current sentiment decline will lead to a permanent loss of the student demographic to competitors like Mathway.
Intrusive ad frequency in the latest release drives high churn, which compounds the negative sentiment already visible in recent user reviews.
Technical regressions and UI changes in the latest version erode the daily active habit, accelerating user migration to more stable competitors.