Calculator # is a multi-function utility app for iOS and Android providing scientific, algebraic, and graphing tools for students and professionals.
Product velocity
Maintenance
Daily rank 🇺🇸
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Utilities
Sentiment
4.4
800k reviews
Nemesis
Calculator₊
The App DNA
What makes this app unique?
Users hire the app to replace dedicated hardware graphing calculators with a mobile-first, textbook-style interface that handles complex algebraic and scientific workflows.
For Students, engineers, and scientific professionals requiring a mobile alternative to traditional graphing calculators.
What does it look like?
Key features
Uses camera input to identify and solve mathematical expressions
Converts handwritten mathematical input into digital expressions
Renders equations exactly as they appear in academic textbooks
How much does it cost?
Freemium model gates advanced AI and recognition tools behind one-time or recurring purchases while maintaining a high-utility free base.
Velocity
Maintenance developmentUX improvementsperformanceShow more...
The app maintains a low-frequency release cadence, averaging approximately 0.15 releases per week over the last six months. Development is currently focused on stability and minor bug fixes rather than new feature deployment. The latest release introduced a design update, but the overall trend remains in a maintenance state with significant gaps between updates. There is no evidence of live-ops activity or recurring content cycles.
Who built it?
Incpt.Mobis
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Video Compress - Shrink ResizeUser Sentiment
What do users think recently?
Review voice lately leans frustrated. Users appreciate simple and accurate calculation logic provides reliable utility for everyday math tasks, but report aggressive full-screen advertisements interrupt core functionality and degrade the user experience.
How are ratings & reviews evolving?
What users say, by theme
- Simple and accurate calculation logic provides reliable utility for everyday math tasks
- Aggressive full-screen advertisements interrupt core functionality and degrade the user experience
99 of 99 recent reviews analyzed · high confidence · Frustrated overall
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Calculator #
How's the Utilities market?
The rivals identified
By Impala Studios
This app dominates the utility calculator space with massive scale and high-frequency release cycles that directly challenge our market share.
- Maintains a high-velocity release cadence of nine updates in six months to ensure platform stability.
- Leverages a long-standing market presence since 2010 to build deep user trust and brand recognition.
- Optimized specifically for the iPad form factor, capturing the tablet-first utility user segment.
Unlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Calculator #
Where is it heading?
The utility calculator market is consolidating around high-velocity, stable incumbents, leaving Calculator # exposed to churn. Unless the team pivots from aggressive monetization to restoring core interface reliability, the current sentiment decline will lead to a permanent loss of the student demographic to competitors like Mathway.
- Intrusive ad frequency in the latest release drives high churn, which compounds the negative sentiment already visible in recent user reviews.
- Technical regressions and UI changes in the latest version erode the daily active habit, accelerating user migration to more stable competitors.
The SWOT
- Mathematical display engine functions as a brand moat by increasing academic switching costs
- History tape retention loop reduces friction for repetitive multi-step calculations
- Integration of unit and currency conversion tools would close parity gaps with stock calculators
- Educational partnerships could provide a B2B distribution channel for the premium solver features
Next best moves
Reduce ad frequency in the free tier because high-frequency ads are the top churn driver → improve retention
+ 1 more prioritized moveThe counter-intuitive read
The app's high rating is a lagging indicator…
Read the full takeFeature gaps
Unit and currency conversion (available in stock calculators but missing here) +1
Since the last report: The app has transitioned from a neutral utility to a declining product due to the introduction of intrusive advertisements and UI regressions that are actively driving user churn.
Bottom line
Calculator # maintains a strong feature set for academic users, but aggressive monetization and recent UI regressions are actively driving churn to more stable incumbents, so the PM must prioritize ad-frequency reduction to stabilize the user base.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeReport last updated