| Core Identity |
| Developer | Mert Can Kus | Impala Studios | Jindrich Houska | Incpt.Mobis | Zac Cohan | Chegg, Inc. | Desmos |
| Category | Productivity | Utilities | Utilities | Utilities | Productivity | Education | Education |
| Platform | Android, iOS | Android, iOS | Android, iOS | iOS, Android | iOS | iOS | iOS, Android |
| Store Metrics |
| Rating | 4.4 / 5 | 4.7 / 5 | 4.6 / 5 | 4.6 / 5 | 4.9 / 5 | 4.9 / 5 | 4.3 / 5 |
| Ratings Count | 98 | 1,715,926 | 205 | 35,622 | 396 | 424,785 | 1,244 |
| Price | USD0.99 | Free | Free | Free | Free | Free | Free |
| Release Date | Apr 9, 2021 | Oct 22, 2010 | Oct 15, 2022 | Aug 31, 2011 | May 3, 2020 | Sep 4, 2012 | Jun 18, 2013 |
| Last Updated | Dec 9, 2022 | Apr 23, 2026 | Apr 23, 2026 | Mar 12, 2026 | Apr 17, 2026 | Apr 14, 2026 | Mar 12, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | - | negative | - | terrible | excellent |
| Score | 55/100 | 45/100 | - | 35/100 | - | 20/100 | 85/100 |
| Praises | - Simple and accurate calculation logic provides reliable utility for everyday math tasks
- Minimalist interface design allows for quick and efficient navigation during daily use
| - All-in-one utility including scientific functions and unit converters provides significant daily value
| - | - Simple and accurate calculation logic provides reliable utility for everyday math tasks
| - | - Step by step equation breakdown helps students grasp difficult mathematical concepts independently
- Snap and solve camera feature provides quick homework assistance for complex equations
| - Versatile graphing and calculation tools provide academic utility for students and engineering professionals
- Intuitive interface design makes complex mathematical visualization accessible for casual and advanced users
- Creative features like audio tone generation and custom color palettes encourage non-academic exploration
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| Complaints | - Post-update UI changes remove critical features like the real-time sum display
- Visual design regressions including enlarged elements and flashing cursors distract from core utility
- Technical instability including unexpected lock screen returns and calculation errors in trigonometric functions
| - Removal of the running total feature post-update disrupts established user calculation habits
| - | - Aggressive full-screen advertisements interrupt core functionality and degrade the user experience
| - | - Persistent cookie consent overlay blocks critical answer visibility on mobile screens
- Frequent forced sign in cycles disrupt homework flow and user retention
- Inconsistent problem solving accuracy leads to distrust in the core utility
| - Lack of a native dark mode causes eye strain during extended night-time study sessions
- UI regressions in the latest update make function selection and list management cumbersome
- Inconsistent behavior with external hardware like Bluetooth keyboards limits productivity on tablet devices
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| Requests | - Integration of specialized conversion tools like currency and unit converters for broader utility
- Addition of memory functions like M+ and MRC to support more complex arithmetic
| - Integration of currency converter and memory functions into the core stock calculator experience
| - | - Integration of unit and currency conversion tools to match stock calculator capabilities
| - | - | - Integration of geometry and 3D graphing modes to match the functionality of the web version
- Persistent settings for interface preferences like contrast and text size to avoid manual reconfiguration
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| Strategic Intel |
| Strengths | - Formula-saving workflow reduces repetitive data entry for professional users
- Minimalist interface design supports efficient navigation for quick arithmetic tasks
| - 200 million download footprint provides massive top-of-funnel acquisition
- All-in-one utility design creates high daily session utility
- VoiceOver and high-contrast accessibility features expand addressable market
| - | - Mathematical display engine functions as a brand moat by increasing academic switching costs
- History tape retention loop reduces friction for repetitive multi-step calculations
| - | - Multi-subject calculator suite provides utility across the entire academic curriculum
- Established brand trust in the dedicated math-solver niche
| - Proprietary math engine enables complex calculus visualization
- Accessibility suite functions as a B2B distribution moat into institutional partnerships
- Ad-free interface drives high academic trust
|
| Weaknesses | - Technical instability including force-closes and trigonometric calculation errors
- UI regressions post-update removed real-time sum display
- Platform-split pricing creates inconsistent user acquisition funnels
| - Removal of running total feature disrupts power-user calculation habits
- Aggressive subscription prompts drive high churn in the free tier
- UI scaling issues on non-full-screen devices hinder input visibility
| - | - 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
| - | - Persistent cookie banner blocks primary value delivery
- Forced logout loops disrupt active study sessions
- Premium tier lacks conversational AI feedback
| - No native dark mode despite high-frequency user requests
- UI regressions in the latest update make function selection cumbersome
- Inconsistent Bluetooth keyboard support limits tablet productivity
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| Pricing | freemium | freemium | free | freemium | freemium | subscription | free |
| Momentum | Zombie | Active | Intense | Maintenance | Intense | Maintenance | - |
| Update Cadence | 5 versions, 2 majors/6mo, ~393d avg | 5 versions, 3 majors/6mo, ~14d avg | 5 versions | 5 versions, 5 majors/6mo, ~144d avg | 5 versions | 2 versions, 1 majors/6mo, ~26d avg | - |
