Report updated May 6, 2026
Calculator·
For users seeking a simple, multi-platform calculator utility with optional advanced functions for tablet and wearable devices.
Calculator· is an established utilities app that is available. With a 4.4/5 rating from 798.9K reviews, it shows polarized user reception. Users particularly appreciate simple and accurate calculation interface provides reliable utility for everyday household budget management tasks, though post-update ui regressions remove critical features like real-time sum display and quick answer feedback remains a common concern.
What is Calculator·?
Calculator· is a utility app providing basic arithmetic and advanced math functions across iOS and Android.
Users hire the app for low-friction, everyday calculation tasks that avoid the complexity of feature-heavy alternatives.
Current Momentum
v9.1 (886477075) · 1mo ago
Maintenance- Implemented bug fixes in latest release.
- Maintains subscription-based premium access model.
Active Nemesis
Calculator₊
By Impala Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
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Recent User MoodAI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.
What makes this app unique?
What Does It Look Like?
How Is The App's Momentum Right Now?
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What Are The Key Features?
Addition, subtraction, multiplication, division, and percentage calculations.
Allows concurrent app usage on iPad.
Square, square root, and inverse functions.
How much does it cost?
- Free tier
- Premium Access (1-month or 1-year)
Monetization relies on a subscription model for premium features, with a trial period to lower the barrier to entry.
Who Built It?
Tim O's Studios
Providing straightforward, high-visibility utility tools and calculators designed for essential daily mobile tasks.
Portfolio
13
Apps
Who is Tim O's Studios?
Tim O's Studios has carved out a distinct niche in the 'essential utility' space by prioritizing high-visibility, minimalist interfaces over complex feature sets. Their strategic moat lies in capturing high-intent search traffic for basic tools like calculators and compasses, often deploying multiple variants of the same utility to maximize category footprint. The portfolio shows a recent shift toward active maintenance of core assets, signaling a move to defend their established positions against newer utility entrants.
Who is Tim O's Studios for?
- General mobile users seeking high-visibility
- Minimalist tools for basic arithmetic
- Navigation
- Health tracking
Portfolio momentum
Released 7 updates across 22 apps in the last 6 months with 12 currently active titles — maintaining a steady development pace.
What other apps does Tim O's Studios make?
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 interface provides reliable utility for everyday household budget management tasks, but report post-update ui regressions remove critical features like real-time sum display and quick answer feedback.
What Users Love
What Frustrates Users
What Users Want
What is the competitive landscape for Calculator·?
How's The Utilities Market?
Market outlook for this category
Available very soon
The rivals identified
The Nemesis
Head to Head
The target app must double down on its 'no-frills' value proposition to differentiate from the feature-heavy, high-velocity dominance of Impala Studios.
What sets Calculator· apart
Provides a cleaner, no-frills user experience that avoids the feature bloat found in long-standing legacy calculators.
Focuses on core utility simplicity which appeals to users overwhelmed by complex, multi-functional calculator suites.
What's Calculator₊'s Edge
Delivers a highly polished, battle-tested interface that has been optimized for user retention over fifteen years.
Aggressive release schedule ensures rapid integration of new OS features and performance optimizations for all devices.
Contenders
Provides a standardized calculator experience that competes directly for the default utility slot on user devices.
Benefits from long-term brand recognition within the Utilities category, creating a high barrier to entry.
Pre-installed system integration provides an insurmountable distribution advantage over any third-party utility.
Deep OS-level integration allows for features like Control Center access and system-wide search that third-party apps cannot replicate.
Peers
Utilizes advanced computer vision to solve complex equations, shifting the value proposition from manual input to automated capture.
Backed by Google's infrastructure, providing superior accuracy and pedagogical support that simple calculators lack.
Offers powerful graphing and visualization tools that cater to students and professionals beyond basic arithmetic needs.
Positions itself as a professional-grade educational tool rather than a simple, everyday utility.
New Kids on the Block
Calculator Air: AI Math Solver
★4.7 (82.2K)Air Apps Systems
⚡Shows high development velocity with 5 releases in the last six months, signaling an aggressive push into the AI-utility space.
Integrates AI-driven math solving capabilities to modernize the traditional calculator experience for a younger, tech-forward demographic.
Rapidly iterating on feature sets to capture market share from legacy utilities that lack modern AI integration.
The outtake for Calculator·
Strengths to defend, gaps to attack
Core Strengths
- Clean interface avoids feature bloat
- Apple Watch support increases engagement frequency
Critical Frictions
- Post-update UI regressions remove running total
- Technical instability causes crashes during use
- Aggressive monetization for basic features
Growth Levers
- Integration of currency and unit converters
Market Threats
- High-velocity update cadence of Calculator₊
- Native system integration of Apple Calculator
What are the next best moves?
Restore running total feature because it is the top-cited productivity loss → stabilize user sentiment
User complaints regarding the removal of the running total are the #1 frustration theme.
Trade-off: Pause the color-scheme expansion sprint — functionality restoration is critical for retention.
Audit calculation logic because users report incorrect results for trigonometric functions → restore trust
Reports of incorrect mathematical outputs directly undermine the app's core utility value.
Trade-off: Delay the unit converter feature development — accuracy is the baseline requirement.
A counter-intuitive read
The app's simplicity is its primary vulnerability, as it leaves no room for error, making the recent technical regressions significantly more damaging than they would be for feature-heavy rivals.
Feature Gaps vs Competitors
- Currency conversion (available in Calculator₊ but missing here)
- Unit conversion (available in Calculator₊ but missing here)
Key Takeaways
The app succeeds as a simple utility, but recent UI regressions and calculation errors threaten its core value, so the PM must prioritize stability over new features to prevent churn.
Where Is It Heading?
Declining
The utility calculator market is consolidating around high-velocity competitors that offer both simplicity and feature parity. Calculator· is currently exposed due to its recent technical regressions, so the PM must pivot to stability to avoid losing the user base to more reliable alternatives.
UI regressions in the latest update remove critical productivity features, which compounds the rating drag already visible on Android.
Technical errors in basic math functions erode user trust, accelerating churn pressure toward more reliable stock calculator alternatives.