Calculator is a multi-purpose scientific and graphing math tool for students and professionals on Android.
Product velocity
Dormant
Daily rank 🇺🇸
#131
▼3Education · free
Sentiment
4.3
105k reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users open the app to perform routine arithmetic and complex scientific calculations, relying on the 100-entry history to audit past work without needing to re-enter expressions.
For Students and professionals requiring a multi-purpose tool for basic, scientific, and graphing calculations.
What does it look like?
Key features
Logs 100 expressions with timestamps, acting as a retention lever by allowing users to audit past work.
Visualizes functions for students, expanding ad-inventory via increased time-in-app.
Extends utility to secondary hardware, acting as a brand moat to increase switching costs.
How much does it cost?
Ad-supported model leveraging high install volume to monetize via display inventory.
Velocity
Dormant developmentperformanceopaqueShow more...
The app is currently in a zombie state, having shipped only one release in the last 348 days. There has been no development activity or feature updates for nearly a year. The latest release focused exclusively on minor bug fixes and performance improvements, indicating a lack of active maintenance or roadmap progression.
Who built it?
Prometheus Interactive
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Color Widgets & Themes ChangerUser Sentiment
What do users think recently?
The recent review mood reads excited. Users appreciate everyday calculation tasks feel simple and accurate for users requiring a reliable mobile math tool and fast performance and reliable execution make the calculator a preferred choice for quick math needs, but report aggressive advertising frequency interrupts the calculation flow and degrades the overall user experience significantly.
How are ratings & reviews evolving?
What users say, by theme
- Everyday calculation tasks feel simple and accurate for users requiring a reliable mobile math tool
- Fast performance and reliable execution make the calculator a preferred choice for quick math needs
- Aggressive advertising frequency interrupts the calculation flow and degrades the overall user experience significantly
50 of 50 recent reviews analyzed · high confidence · Excited overall
Read the full review analysisUnlock 2 more frustration themes, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Calculator
How's the Education market?
Calculator maintains a 4.3-star rating across 105,032 total ratings, reflecting a stable but aging user base. The lack of updates for 349 days suggests a shift toward maintenance-only status, limiting its ability to compete with more active category entrants.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Calculator
Where is it heading?
The math utility market is consolidating around apps that balance high-frequency ad inventory with non-intrusive user experiences. Calculator's current trajectory, marked by a lack of feature updates and aggressive monetization, suggests a declining outlook as users migrate to more responsive alternatives.
- The 349-day update gap indicates a transition to maintenance-only status, which prevents the app from responding to evolving category standards.
- Persistent user complaints regarding subscription pressure on basic features suggest that current monetization is actively damaging long-term user retention.
The SWOT
- 100-entry history enables audit-based retention
- Wear OS integration increases switching costs
- Optimize ad placement to reduce flow interruption
- Adjust paywall to exclude basic arithmetic features
Next best moves
Audit ad-frequency settings because user complaints cite flow interruption as a top frustration → reduce churn
+ 1 more prioritized moveThe counter-intuitive read
The app's 11-month development silence is not a…
Read the full takeSince the last report: The outlook for Calculator has shifted from stable to declining due to a 349-day development silence that now threatens the app's competitive viability. This stagnation, combined with persistent user frustration over monetization, has moved the app into a defensive posture.
Bottom line
Reducing ad frequency and un-gating basic features would stabilize the user base, as the current monetization friction is actively eroding the app's utility-first reputation.
Unlock 3 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Calculator free to use?
Does Calculator have intrusive ads?
Can I use Calculator on my smartwatch?
Sources
Report last updated