| Core Identity |
| Developer | KinkumaDesign | Impala Studios | Noriyasu Kutsuzawa | Zac Cohan | Apple | Incpt.Mobis |
| Category | Finance | Utilities | Utilities | Productivity | Utilities | Education |
| Platform | Android, iOS | Android, iOS | iOS, Android | iOS | Android, iOS | Android, iOS |
| Store Metrics |
| Rating | 4.9 / 5 | 4.7 / 5 | 4.8 / 5 | 4.9 / 5 | 3.0 / 5 | 4.7 / 5 |
| Ratings Count | 199 | 1,715,926 | 1,847 | 396 | 9,319 | 6,228 |
| Price | USD3.99 | Free | Free | Free | Free | $5.99 |
| Release Date | Dec 18, 2015 | Oct 22, 2010 | Jul 9, 2013 | May 3, 2020 | May 10, 2016 | Sep 16, 2011 |
| Last Updated | May 3, 2026 | Apr 23, 2026 | Jul 15, 2025 | Apr 17, 2026 | Dec 12, 2025 | Mar 12, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | - | - | - | mixed |
| Score | 35/100 | 45/100 | - | - | - | 45/100 |
| Praises | - Core calculator functionality provides reliable and fast arithmetic support for daily shopping and basic tasks
| - All-in-one utility including scientific functions and unit converters provides significant daily value
| - | - | - | - Core calculator functionality provides reliable and accurate math results for daily user tasks
|
| Complaints | - Post-update removal of the running total feature disrupts established workflows for power users and accountants
| - Removal of the running total feature post-update disrupts established user calculation habits
| - | - | - | - Removal of the running total display post-update forces unnecessary interaction with the equals button
|
| Requests | - Integration of advanced financial tools like currency converters and memory functions for professional calculation needs
| - Integration of currency converter and memory functions into the core stock calculator experience
| - | - | - | - Addition of scientific calculator functions and currency conversion tools to increase utility
|
| Strategic Intel |
| Strengths | - History tape reuse reduces friction for repeat financial tasks
- Sales tax toggle drives high-intent usage in retail contexts
- iPad multitasking support increases utility for power-user workflows
| - 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
| - | - | - Native iPadOS and Apple Pencil integration
- Math Notes allows real-time variable manipulation
- Zero-cost utility for ecosystem users
| - Textbook-style display mimics physical graphing calculator interfaces
- 2D graphing engine supports simultaneous conic equation plotting
|
| Weaknesses | - Running total removal disrupts professional accounting workflows
- UI scaling issues cause elements to exceed screen boundaries
- Technical instability forces unexpected app closures during use
| - 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
| - | - | - Low user rating (2.98) suggests UX friction
- Lack of step-by-step explanations for solutions
- Basic history management compared to power-user alternatives
| - Removal of running total display post-update
- UI regressions post-update increase perceived clutter
- Intermittent crashes disrupt active math workflows
|
| Pricing | paid | freemium | freemium | freemium | free | freemium |
| Momentum | Maintenance | Active | Maintenance | Intense | Maintenance | Maintenance |
| Update Cadence | 5 versions, 3 majors/6mo, ~456d avg | 5 versions, 3 majors/6mo, ~14d avg | 5 versions | 5 versions | 1 versions | 5 versions, 3 majors/6mo, ~77d avg |
