Report updated May 6, 2026
Calculator´
For students and professionals who require a highly customizable, scientific calculator with productivity-focused features like timers and history tracking.
Calculator´ is an established productivity app that is free with in-app purchases. With a 4.4/5 rating from 765.3K reviews, it shows polarized user reception. Users particularly appreciate simple and accurate calculation logic provides reliable utility for everyday math tasks, though recent design changes removed critical features like the running sum display during typing remains a common concern.
What is Calculator´?
Calculator is a scientific math utility for Android and iOS that features live expression parsing, custom themes, and productivity tools.
Users hire the app to perform complex scientific calculations with a personalized interface, replacing stock calculators that lack advanced function sharing and visual customization.
Current Momentum
v9.1 (886477075) · 1mo ago
Maintenance- Ships frequent updates for platform compatibility
- Integrated native watchOS app with haptics
Active Nemesis
Calculator₊
By Impala Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
ProductivityNo ranking data
Rating Pulse 🇺🇸
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?
Loading...
What Are The Key Features?
Real-time calculation of complex nested expressions.
Custom math functions that can be shared with other users.
Extended mathematical tools available via in-app purchase.
How much does it cost?
- Free base calculator
- In-app purchase for Converter and Basic Graphing
Freemium model uses a free base app to drive volume, gating advanced scientific tools behind a one-time or subscription-based purchase.
Who Built It?
Oval Software Oy
Providing utility-focused productivity tools and casual entertainment for mobile users. They solve daily scheduling and calculation needs through a diverse, multi-category app suite.
Portfolio
13
Apps
Who is Oval Software Oy?
Oval Software operates as a high-utility studio that bridges the gap between functional productivity tools and casual entertainment. Their strategy relies on maintaining a broad, evergreen utility catalog that anchors the portfolio, while using low-stakes party and puzzle games to capture secondary engagement. The studio demonstrates a clear focus on platform-native integration, particularly within the Apple ecosystem, to differentiate their utility tools from generic competitors. Their primary challenge lies in balancing a fragmented portfolio that spans from finance and health trackers to party games, requiring distinct maintenance cycles for each vertical.
Who is Oval Software Oy for?
- General mobile users
- Freelancers
- Social groups seeking functional tools for time management
- Light entertainment
Portfolio momentum
Released 5 updates across the portfolio in the last 6 months with consistent maintenance of core utility titles.
What other apps does Oval Software Oy make?
Profit & Margin Calculator
Waterfall - The Drinking Game
Weather Compare - Cold Day
Time Calculator - Work Hours
Five in a row - Pentaballs
Body Measurement & Tracker
What do users think recently?
High confidence · 85 reviews analyzed · Based on 85 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 recent design changes removed critical features like the running sum display during typing.
What Users Love
What Frustrates Users
What Users Want
What is the competitive landscape for Calculator´?
How's The Productivity Market?
Market outlook for this category
Available very soon
The rivals identified
The Nemesis
Head to Head
The target app must differentiate through superior UX simplicity or niche-specific utility to avoid being commoditized by this high-velocity, feature-rich incumbent.
What sets Calculator´ apart
Offers a more focused and minimalist UI design that avoids the feature bloat found in larger competitors
Provides a more streamlined user experience for quick, daily math tasks without unnecessary interface complexity
What's Calculator₊'s Edge
Delivers a significantly broader feature set that captures power users requiring advanced scientific and conversion tools
Demonstrates superior platform stability through a consistent and rapid update cadence over the last six months
Contenders
Integrates multiple specialized calculators like currency and unit converters into a single cohesive productivity suite
Maintains a polished, user-friendly interface that directly competes with the target's 'smart UI' value proposition
HiPER Scientific Calculator
★4.7 (257.8K)Jindrich Houska
⚡A highly specialized scientific tool that dominates the utility category with a massive, loyal user base.
Provides deep scientific functionality that serves professional and academic users far beyond basic arithmetic needs
High update frequency indicates a commitment to maintaining technical performance for complex mathematical computations
Peers
Numerical²
★4.8 (1.3K)Andrew J Clark
💀A high-quality, design-centric utility that appeals to the same aesthetic-conscious audience as the target app.
Prioritizes a unique, gesture-based interaction model that differentiates it from standard button-grid calculator layouts
Focuses on a premium, minimalist design language that targets users who value aesthetics over raw feature count
Soulver 3
★4.9 (396)Zac Cohan
⚡An innovative 'notepad-style' calculator that redefines the category by allowing natural language input for math.
Uses natural language processing to allow users to type math problems as sentences rather than equations
Positions itself as a productivity tool for thinkers and writers rather than just a standard number-cruncher
New Kids on the Block
Calculator Air: AI Math Solver
★4.7 (82.2K)Air Apps Systems
⚡Aggressively leveraging AI branding and frequent updates to capture the emerging market for intelligent math assistance.
Integrates AI-driven problem solving to provide instant solutions to complex equations via camera or text input
Rapidly iterating on the 'AI' value proposition to attract users looking for modern, automated math assistance
The outtake for Calculator´
Strengths to defend, gaps to attack
Core Strengths
- Live expression parsing enables complex nested math
- Shareable function links drive organic acquisition
- Deep UI customization increases user retention
Critical Frictions
- 0.7★ Android-iOS rating gap
- Subscription model alienates legacy users
- Removal of running sum display disrupts core workflow
Growth Levers
- Untapped B2B education partnerships
- Lack of wearable integration in the category
- Expansion of unit conversion tools
Market Threats
- High-velocity release cadence of Calculator+
- AI-first math solvers capturing emerging demand
- Subscription fatigue among long-term users
What are the next best moves?
Restore running sum display because it is the top-cited workflow regression → stabilize retention
High-frequency complaint theme in user sentiment data regarding design changes.
Trade-off: Push the unit conversion tool sprint to Q4 — workflow stability is the primary churn driver.
Audit subscription pricing because legacy users feel misled → reduce negative churn
Sentiment analysis shows dissatisfaction with the shift from one-time purchase to recurring models.
Trade-off: Pause the new theme-pack release — pricing trust is more critical to long-term LTV.
A counter-intuitive read
The app's #2 chart position is a liability, as maintenance-mode at the top makes it more vulnerable to a single live-ops rival than a lower-ranked app with room to grow.
Feature Gaps vs Competitors
- Real-time unit and currency conversion (available in ClevCalc but missing here)
- Natural language input (available in Soulver 3 but missing here)
Key Takeaways
Calculator retains users through strong core utility, but the recent UI regressions and subscription shift threaten its market position, so the PM must prioritize restoring the running sum display to stabilize retention.
Where Is It Heading?
Declining
The scientific calculator market is consolidating around high-velocity incumbents, leaving Calculator exposed to churn if it continues to prioritize monetization over core workflow stability. The PM must address the recent UI regressions immediately to prevent further erosion of the user base.
UI regressions in the latest update (failing notifications, disappearing tabs) erode the daily active habit, which compounds the rating drag.
The shift to subscription pricing alienates legacy users, leading to negative sentiment that threatens the app's long-term retention.