Report updated May 6, 2026
Calculator: Pro
For students, engineers, and professionals requiring a versatile, multi-functional calculator.
Calculator: Pro is an established productivity app that is free with in-app purchases. With a 4.4/5 rating from 765.4K reviews, it shows polarized user reception. Users particularly appreciate simple and accurate calculation logic provides reliable utility for everyday math tasks, though post-update ui changes remove essential features like real-time sum display and quick answers remains a common concern.
What is Calculator: Pro?
Calculator: Pro is a multi-functional scientific and basic calculator app for iOS and Android, offering unit conversion and theme customization.
Users hire this app to perform rapid, accurate mathematical and unit conversions in a single interface, replacing the need for multiple specialized tools.
Current Momentum
v9.1 (886477075) · 1mo ago
Maintenance- Implemented bug fixes in latest release
- Maintained stable freemium revenue model
Active Nemesis
Calculator₊
By Impala Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
ProductivityNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Advanced mathematical operations including trigonometric, logarithmic, and hyperbolic functions.
Conversion tools for 30+ currencies and 60+ measures.
How much does it cost?
- Free tier with ads
- $0.99/month subscription
- $3.99 lifetime payment
Freemium model anchored by a $3.99 lifetime purchase, utilizing subscription gates to monetize advanced utility features.
Who Built It?
Appgeneration Software
Developing a dual-track portfolio of high-utility productivity tools and classic casual games designed for immediate engagement.
Portfolio
13
Apps
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Explore the full Appgeneration Software report
Portfolio breakdown, audience, momentum, and every app published by Appgeneration Software.
What do users think recently?
High confidence · 54 reviews analyzed · Based on 54 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate simple and accurate calculation logic provides reliable utility for everyday math tasks, but report post-update ui changes remove essential features like real-time sum display and quick answers.
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: Pro?
How's The Productivity Market?
Market outlook for this category
Available very soon
The rivals identified
Nemeses(1)
With 9 releases in the last six months and massive scale, this app dominates the utility calculator space with a high-frequency update cycle.
Differentiators
- Maintains a high-frequency update cadence of nine releases in six months to ensure OS compatibility.
- Optimized for tablet-first workflows which provides a superior experience for power users compared to mobile-only.
- Aggressive feature expansion strategy keeps the utility relevant for long-term users through constant UI refinements.
Head to head
The target app must decide between remaining a lightweight utility or investing in advanced scientific features to compete with the high-frequency development cycle of this rival.
Contenders(3)
The default system utility that sets the baseline expectation for all calculator apps on the platform.
Differentiators
- Deep system-level integration allows for seamless access via Control Center and system-wide search.
- Zero-friction user experience by being pre-installed, effectively capturing the casual user base by default.
A premium-positioned utility that serves as the gold standard for power users and professional calculator enthusiasts.
Differentiators
- Offers deep customization options including RPN mode and programmable buttons for professional engineering workflows.
- Maintains a reputation for high-precision calculations that appeals to a niche, high-intent professional audience.
A specialized scientific calculator that directly competes for the education and advanced user segment.
Differentiators
- Focuses exclusively on scientific and engineering workflows rather than general-purpose utility tasks.
- Provides specialized input methods that mimic physical hardware calculators to reduce the learning curve for students.
Same space(2)
Shares the target's secondary utility focus on currency conversion.
Differentiators
- Specializes in real-time financial data feeds which provides higher accuracy for currency conversion tasks.
- Dedicated UI for travel-based financial management that is more intuitive than a general calculator.
Adjacent utility that dominates the graphing and educational math space.
Differentiators
- Provides industry-leading interactive graphing capabilities that general calculators cannot replicate.
- Strong integration with educational curricula makes it a standard tool for students and teachers.
New entrants(1)
Leverages the massive Chegg ecosystem to provide AI-driven problem solving that goes beyond basic calculation.
Differentiators
- Integrates step-by-step problem solving logic that transforms the app from a tool into a tutor.
- Capitalizes on the parent company's educational database to provide instant solutions for complex math problems.
Compare Calculator: Pro 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: Pro
Strengths to defend, gaps to attack
Core Strengths
- Persistent data storage creates high switching costs
- 30+ currency converter provides utility beyond basic math
Critical Frictions
- 0.3★ rating gap between iOS and Android
- Removal of real-time sum display in latest release
Growth Levers
- Wearable-specific interface integration
- B2B educational unit-conversion partnerships
Market Threats
- High-frequency update cadence of Calculator₊
- OS-native calculator feature expansion
What are the next best moves?
Restore real-time sum display because it is the top-cited productivity regression → stabilize retention
Sentiment data identifies the removal of sum display as the primary driver of recent 1★ reviews.
Trade-off: Pause the theme-customization sprint — workflow utility has 3× the impact on churn.
Audit Android stability because of the 0.3★ rating gap → close platform parity
User reports of unexpected closures on Android are significantly higher than iOS.
Trade-off: Delay the currency-converter UI refresh — platform stability is a prerequisite for user trust.
A counter-intuitive read
The app's high rating is a lagging indicator that masks the immediate churn risk posed by the latest update's removal of core productivity features.
Feature Gaps vs Competitors
- Tablet-first optimization (available in Calculator₊ but missing here)
- RPN mode (available in PCalc but missing here)
Key Takeaways
The app provides reliable utility but suffers from recent workflow regressions, so the PM must prioritize restoring core productivity features to prevent churn to high-frequency rivals.
Where Is It Heading?
Declining
The utility calculator market is consolidating around apps with high-frequency update cadences, leaving Calculator: Pro exposed to churn. The recent removal of core features signals a misalignment with user needs, so the PM must pivot to stability and workflow restoration to maintain the current user base.
The latest update removed real-time sum display, which triggers immediate user frustration and increases the likelihood of app deletion.
Android-specific stability issues are driving a rating gap, which compounds the negative sentiment and erodes the app's overall market standing.