Report updated May 6, 2026
Calculator!
For math students and professionals requiring persistent history and note-taking capabilities.
Calculator! is an established utilities app that is a paid app. With a 4.4/5 rating from 769.1K reviews, it shows polarized user reception. Users particularly appreciate simple and accurate calculation tools provide reliable utility for everyday personal and business tasks, though recent design changes post-update removed critical quick-answer displays and altered input box functionality remains a common concern.
What is Calculator!?
Calculator! is a utility app for iOS and Android providing standard and scientific math functions with integrated note-taking.
Users hire the app to maintain a persistent, ad-free record of complex calculations that standard system calculators fail to provide.
Current Momentum
v9.1 (886477075) · 1mo ago
Zombie- Implemented Material 3 design on Android.
- Fixed critical stability bugs.
Active Nemesis
Calculator₊
By Impala Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
UtilitiesRating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
30+ scientific operations.
Handwritten notes within the app.
Logs past calculations.
Leather color and texture changes.
Print notes and history.
How much does it cost?
- $0.99 on iOS
- Free on Android
Split-platform model uses a flat fee on iOS to gate customization while maintaining free utility on Android.
Who Built It?
7th Gear
Providing high-precision utility and environmental data tools for iOS users, from academic calculations to coastal navigation.
Portfolio
4
Apps
What other apps does 7th Gear make?
Explore the full 7th Gear report
Portfolio breakdown, audience, momentum, and every app published by 7th Gear.
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 mixed sentiment. Users appreciate simple and accurate calculation tools provide reliable utility for everyday personal and business tasks and integrated note-taking and calculation logs assist users in managing complex multi-step financial references, but report recent design changes post-update removed critical quick-answer displays and altered input box functionality and technical regressions post-update cause application instability and unexpected navigation to the device lock screen.
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?
How does it evolve in the Utilities market?
Calculator! holds a #73 Paid rank in the US Utilities category, with the iOS version maintaining a 4.78 rating. The lack of recent updates on iOS compared to the Android release cadence signals a potential drift in platform priority.
Rank progression
26 active rankings tracked — 30-day window
The rivals identified
Nemeses(1)
This app dominates the utility calculator space with a massive user base and a high-frequency release cadence that directly challenges our target's market share.
Differentiators
- Maintains a high-frequency update cycle with 9 releases in the last six months to ensure OS compatibility.
- Offers a highly polished, feature-rich interface that has captured a massive, loyal user base over 15 years.
- Monetization strategy focuses on a free-to-use model that creates significant friction for paid utility competitors.
Head to head
The target app must pivot toward a unique, high-value utility feature or superior design language to differentiate itself from this dominant, high-velocity incumbent.
Contenders(1)
A direct utility-focused competitor that maintains a large install base and serves the same core audience as our target.
Differentiators
- Provides a robust, standard-utility experience that directly competes for the same casual user demographic.
- Maintains a stable, predictable release schedule that ensures long-term reliability for core calculator functionality.
Same space(3)
Sets the industry standard for graphing and visualization, serving as a high-end alternative for users needing scientific precision.
Differentiators
- Provides industry-leading graphing performance and visualization tools that are essential for academic and professional users.
- Maintains a clean, ad-free, and highly accessible interface that prioritizes user experience over monetization.
A powerful educational tool that captures users looking for more than just basic arithmetic, encroaching on the scientific calculator market.
Differentiators
- Offers step-by-step problem solving that transforms the app from a simple tool into an educational companion.
- Integrates deep subject-matter expertise across algebra, calculus, and statistics, far exceeding standard calculator capabilities.
While categorized under Education, its massive scale and AI-driven math solving capabilities represent a significant indirect threat to standard calculator apps.
Differentiators
- Utilizes advanced computer vision to solve handwritten math problems, shifting the value proposition from input to capture.
- Backed by Google's infrastructure, providing a level of reliability and feature-depth that independent utilities struggle to match.
New entrants(1)
An emerging threat that is aggressively integrating AI math-solving features to capture the modern, tech-forward user segment.
Differentiators
- Integrates AI-driven problem solving to differentiate from traditional, static calculator interfaces.
- Aggressively iterates with 5 releases in the last six months to rapidly refine its AI feature set.
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
- Leather-textured UI creates distinct brand identity
- Integrated note-taking provides utility beyond arithmetic
- One-time purchase model avoids subscription fatigue
Critical Frictions
- 0.4★ rating gap between Android and iOS
- Broken widget functionality on newer hardware
- Lack of modern graphing capabilities
Growth Levers
- Integration of native currency and unit converters
- Expansion into educational graphing tools
Market Threats
- AI-driven math solvers eroding manual input value
- High-frequency update cadence of Calculator₊
- Technical regressions causing lock-screen navigation
What are the next best moves?
Rebuild widget functionality because it is a top-reported frustration on new hardware → restore user trust
Widget failure is a recurring complaint theme in recent reviews.
Trade-off: Push the unit converter feature to Q4 — widget stability has higher impact on current retention.
Restore real-time sum display because its removal hinders data entry efficiency → reduce negative sentiment
Users report the removal of real-time sums as a primary UI regression.
Trade-off: Pause the UI leather-texture update — restoring core functionality is critical for sentiment recovery.
A counter-intuitive read
The app's one-time purchase model is a liability, not a strength, because it prevents the recurring revenue needed to match the high-frequency update cadence of ad-supported rivals.
Feature Gaps vs Competitors
- Graphing capabilities (available in Desmos)
- Currency conversion (available in stock calculators)
Key Takeaways
Calculator! maintains a loyal base through its ad-free, one-time purchase model, but recent UI regressions and broken widgets threaten its utility status, so the PM must prioritize restoring core display functionality to stabilize the rating.
Where Is It Heading?
Declining
The utility calculator market is consolidating around high-frequency, AI-integrated entrants that offer more than basic arithmetic. Calculator! remains exposed due to its static feature set and recent stability issues, so revenue growth hinges on modernizing the core toolset before the user base migrates to more reliable alternatives.
Technical regressions in the latest update cause lock-screen navigation, which directly erodes the daily active habit.
Broken widget functionality on newer hardware triggers negative reviews, compounding the rating drag already visible on Android.