| Core Identity |
| Developer | Raghu Srinivas | Desmos | Glindemann, Sennoun, Langer GbR | Corporate Smalltalk Consulting Ltd | Anas Abubakar | CASIO COMPUTER CO., LTD. | Doug Hicks | Little 10 Robot | NumberClub | Nikita Chizhov |
| Category | Education | Education | Education | Education | Education | Education | Education | Education | Education | Education |
| Platform | iOS | iOS, Android | iOS | iOS | iOS | iOS, Android | iOS | iOS | iOS, Android | iOS |
| Store Metrics |
| Rating | 4.0 / 5 | 4.3 / 5 | 4.5 / 5 | 4.5 / 5 | 4.5 / 5 | 2.1 / 5 | 1.0 / 5 | 4.7 / 5 | 4.8 / 5 | 5.0 / 5 |
| Ratings Count | 4 | 1,244 | 26 | 2 | 2 | 8 | 1 | 7 | 10 | 10 |
| Price | Free | Free | Free | $0.99 | $0.99 | Free | Free | $1.99 | $2.99 | Free |
| Release Date | Apr 3, 2014 | Jun 18, 2013 | Aug 21, 2017 | Jun 4, 2009 | Nov 10, 2021 | Jul 30, 2023 | Jan 26, 2026 | Aug 10, 2017 | May 15, 2020 | Jun 3, 2021 |
| Last Updated | Apr 15, 2014 | Mar 12, 2026 | May 5, 2026 | Oct 17, 2023 | Apr 3, 2023 | Nov 5, 2024 | Feb 15, 2026 | Sep 18, 2025 | Feb 16, 2021 | Oct 3, 2025 |
| Sentiment & Reviews |
| Sentiment | - | excellent | - | - | - | - | - | - | excellent | - |
| Score | - | 85/100 | - | - | - | - | - | - | 90/100 | - |
| Praises | - | - 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
| - | - | - | - | - | - | - Proportional bar visuals help students develop multiplicative reasoning skills without relying on rote memorization
| - |
| Complaints | - | - 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
| - | - | - | - | - | - | - Lack of explicit instructional guidance makes independent play difficult for students struggling with non-addition strategies
| - |
| Requests | - | - 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
| - | - | - | - | - | - | - Inclusion of explicit examples demonstrating how to split numbers into different factors for better clarity
| - |
| Strategic Intel |
| Strengths | - Indian Standards calculation logic provides a niche B2B distribution barrier into regional engineering workflows.
| - 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
| - Distraction-free interface lowers cognitive load for rapid arithmetic verification
- Automated error detection differentiates the input experience from basic calculators
| - Paper-tape history provides a verifiable audit trail for professional users
- Distraction-free interface favors focused, single-task arithmetic workflows
| - Simplified interface reduces cognitive load for specific geometric lookups
| - | - Vocational simulation focus differentiates from generalist math apps
- One-time purchase model removes ad-based friction
| - | - Visual splitting mechanics differentiate from rote-drill competitors
- Multi-user profile support increases classroom utility per device
- Ad-free, distraction-free environment builds trust with educators
| - Statistical analysis provides clear visibility into user knowledge gaps
- Difficulty scaling accommodates diverse skill levels
|
| Weaknesses | - Zero updates since 2014 creates a perception of abandonment.
- 4-review total count indicates negligible market penetration.
| - 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
| - Manual data entry model creates friction compared to AI-based photo scanning
- Lack of gamified retention loops limits long-term daily active usage
| - $0.99 price point lacks a free-to-try entry funnel
- No step-by-step pedagogical guidance limits appeal to the student market
| - No feature updates since April 2023
- Single-purchase model lacks recurring revenue potential
| - | - Single-review count indicates negligible market penetration
- Lack of cloud-save functionality risks user progress
| - | - High Android price point ($5.49) relative to free alternatives
- Lack of in-game instructional tutorials for independent learners
- Low review volume (5 reviews) limits social proof
| - Premium subscription model lacks content updates
- No social or competitive features to drive long-term retention
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| Pricing | free | free | freemium | paid | paid | free | freemium | paid | paid | subscription |
| Momentum | Zombie | - | Maintenance | - | Zombie | - | Maintenance | - | Maintenance | - |
| Update Cadence | 1 versions | - | 1 versions | - | 1 versions | - | 2 versions, 2 majors/6mo, ~17d avg | - | 5 versions | - |
