| Core Identity |
| Developer | Thomas Tsopanakis | Tim O's Studios, LLC | Mikolaj Adamowicz | 7th Gear | Apple | Incpt.Mobis |
| Category | Business | Utilities | Education | Utilities | Utilities | Utilities |
| Platform | Android, iOS | iOS, Android | iOS, Android | iOS, Android | Android, iOS | iOS, Android |
| Store Metrics |
| Rating | 4.7 / 5 | 4.9 / 5 | 0.0 / 5 | 4.8 / 5 | 3.0 / 5 | 4.6 / 5 |
| Ratings Count | 1,909 | 34,074 | 0 | 4,260 | 9,319 | 35,622 |
| Price | USD0.99 | Free | $9.99 | $0.99 | Free | Free |
| Release Date | Jun 28, 2012 | Aug 31, 2012 | Nov 4, 2022 | May 2, 2011 | May 10, 2016 | Aug 31, 2011 |
| Last Updated | May 4, 2026 | May 2, 2025 | Nov 4, 2022 | Dec 9, 2020 | Dec 12, 2025 | Mar 12, 2026 |
| Sentiment & Reviews |
| Sentiment | positive | mixed | mixed | mixed | - | negative |
| Score | 75/100 | 65/100 | 55/100 | 55/100 | - | 35/100 |
| Praises | - Accurate time and date calculation tools provide significant utility for professional scheduling and academic planning
| - Simple and accurate calculation interface provides reliable utility for everyday household budget management tasks
| - Core mathematical calculation functionality remains reliable and accurate for daily user tasks
| - 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
| - | - Simple and accurate calculation logic provides reliable utility for everyday math tasks
|
| Complaints | - Intrusive full-screen advertisements disrupt the user experience during split-screen multitasking and time-sensitive calculations
| - Post-update UI regressions remove critical features like real-time sum display and quick answer feedback
| - Recent design changes removed critical real-time calculation displays during the typing process
| - 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
| - | - Aggressive full-screen advertisements interrupt core functionality and degrade the user experience
|
| Requests | - Home screen widget integration would allow for faster access to accurate time and date information
| - Integration of advanced conversion tools like currency and unit converters for standard calculator functionality
| - Expanded utility features like unit conversion and memory functions for professional math tasks
| - 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
| - | - Integration of unit and currency conversion tools to match stock calculator capabilities
|
| Strategic Intel |
| Strengths | - Specialized calculation engine provides high-precision utility for professional scheduling
- Analog widget drives daily home-screen visibility
| - Clean interface avoids feature bloat
- Apple Watch support increases engagement frequency
| - Neumorphic 3D design creates a tactile, premium user experience
- Graphic visualization of fractions provides superior educational value for students
| - Leather-textured UI creates distinct brand identity
- Integrated note-taking provides utility beyond arithmetic
- One-time purchase model avoids subscription fatigue
| - Native iPadOS and Apple Pencil integration
- Math Notes allows real-time variable manipulation
- Zero-cost utility for ecosystem users
| - Mathematical display engine functions as a brand moat by increasing academic switching costs
- History tape retention loop reduces friction for repetitive multi-step calculations
|
| Weaknesses | - Full-screen ads block visibility during split-screen usage
- Persistent crash reports during standard operations
| - Post-update UI regressions remove running total
- Technical instability causes crashes during use
- Aggressive monetization for basic features
| - Premium tier at $9.99 above category median
- Removal of real-time calculation display in latest update
- Technical instability causing forced app closures
| - 0.4★ rating gap between Android and iOS
- Broken widget functionality on newer hardware
- Lack of modern graphing capabilities
| - Low user rating (2.98) suggests UX friction
- Lack of step-by-step explanations for solutions
- Basic history management compared to power-user alternatives
| - 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
|
| Pricing | freemium | subscription | paid | paid | free | freemium |
| Momentum | Steady | Maintenance | Maintenance | Zombie | Maintenance | Maintenance |
| Update Cadence | 5 versions | 5 versions, 1 majors/6mo, ~105d avg | 2 versions, 1 majors/6mo, ~1235d avg | 5 versions, 3 majors/6mo, ~897d avg | 1 versions | 5 versions, 5 majors/6mo, ~144d avg |
