| Core Identity |
| Developer | Alteru Inc. | Impala Studios | Jindrich Houska | 7th Gear | Google | Desmos | MoseratumApps |
| Category | Utilities | Utilities | Utilities | Utilities | Education | Education | Tools |
| Platform | Android, iOS | Android, iOS | Android, iOS | iOS, Android | Android, iOS | iOS, Android | Android, iOS |
| Store Metrics |
| Rating | 0.0 / 5 | 4.7 / 5 | 4.6 / 5 | 4.8 / 5 | 4.8 / 5 | 4.3 / 5 | 4.5 / 5 |
| Ratings Count | 0 | 1,715,926 | 205 | 4,260 | 733,139 | 1,244 | 323 |
| Price | USD0.99 | Free | Free | $0.99 | Free | Free | Free |
| Release Date | Nov 2, 2012 | Oct 22, 2010 | Oct 15, 2022 | May 2, 2011 | Oct 17, 2014 | Jun 18, 2013 | Feb 28, 2023 |
| Last Updated | Oct 11, 2022 | Apr 23, 2026 | Apr 23, 2026 | Dec 9, 2020 | Feb 12, 2026 | Mar 12, 2026 | May 5, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | - | mixed | mixed | excellent | - |
| Score | 45/100 | 45/100 | - | 55/100 | 45/100 | 85/100 | - |
| Praises | - Simple and accurate calculation logic provides reliable utility for everyday math tasks
| - All-in-one utility including scientific functions and unit converters provides significant daily value
| - | - Simple and accurate calculation tools provide reliable utility for everyday personal and business tasks
- Integrated note-taking and calculation logs assist users in managing complex multi-step financial references
- One-time purchase model offers a fair value proposition compared to subscription-based calculator alternatives
| - Step by step math explanations provide significant academic support for students across various grade levels
| - 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
| - |
| Complaints | - Recent design changes removed critical UI elements like the real-time sum display
- Visual design choices post-update create accessibility and usability friction for long-term users
- Technical instability and performance regressions disrupt the core calculation experience
| - Removal of the running total feature post-update disrupts established user calculation habits
| - | - Recent design changes post-update removed critical quick-answer displays and altered input box functionality
- Technical regressions post-update cause application instability and unexpected navigation to the device lock screen
- Widget functionality remains broken or unresponsive on specific iPad and iPhone hardware configurations
| - Inaccurate problem recognition and incorrect solutions frequently frustrate users following the latest update
| - 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 currency and unit conversion tools to match stock calculator capabilities
| - Integration of currency converter and memory functions into the core stock calculator experience
| - | - Integration of specialized conversion tools like currency and unit converters into the standard interface
- Advanced mathematical features including graphing capabilities and expanded scientific function buttons
| - Expanded camera scanning area would allow users to capture and solve longer math problems
| - 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 | - System-level Android integration maintains platform-standard UI consistency
- Ad-free model functions as a platform-retention asset
| - 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
| - | - Leather-textured UI creates distinct brand identity
- Integrated note-taking provides utility beyond arithmetic
- One-time purchase model avoids subscription fatigue
| - Google-backed OCR engine provides industry-leading handwriting recognition
- Pedagogical focus on step-by-step logic builds brand trust
- 24/7 availability replaces traditional tutor costs
| - 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
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| Weaknesses | - 0.7★ Android-iOS rating gap on majority Android base
- No cloud-save despite 142 requests in reviews
- Recent design changes removed critical UI elements
| - 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
| - | - 0.4★ rating gap between Android and iOS
- Broken widget functionality on newer hardware
- Lack of modern graphing capabilities
| - Premium tier pricing exceeds the category median
- OCR regressions in the latest release drive negative sentiment
- Limited scanning frame size restricts complex problem capture
| - 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 | free | freemium | free | paid | freemium | free | free |
| Momentum | Zombie | Active | Intense | Zombie | Maintenance | - | Intense |
| Update Cadence | 5 versions, 1 majors/6mo, ~1197d avg | 5 versions, 3 majors/6mo, ~14d avg | 5 versions | 5 versions, 3 majors/6mo, ~897d avg | 5 versions, ~72d avg | - | 5 versions |
