Report updated May 19, 2026
Cuspart: Calculator+
For students and professionals requiring a mobile tool for basic and advanced scientific calculations.
Cuspart: Calculator+ is a well-regarded utilities app that is free with in-app purchases. With a 4.4/5 rating from 766.9K reviews, it maintains solid user satisfaction.
What is Cuspart: Calculator+?
Cuspart: Calculator+ is a scientific and basic math utility app available on iOS and Android.
Users hire this app to perform complex scientific computations, but the lack of audit features forces them to seek alternatives for professional workflows.
Current Momentum
v9.1 (886477075) · 1mo ago
Maintenance- No notable signals last 3 months.
Active Nemesis
Calculator⁼
By Impala Studios
Other Rivals
7-Day Rank Pulse 🇺🇸
UtilitiesNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Trigonometric, hyperbolic, logarithmic, and exponential functions.
Customizable colors and light/dark themes.
Standard addition, subtraction, multiplication, division, and percentage.
How much does it cost?
- Free tier with full feature access
- Optional subscription via iTunes
Core functionality is free, with optional subscription revenue managed through Apple ID.
Who Built It?
Mustafa Tolga DALBUDAK
Providing specialized utility and productivity tools for professionals and students. Focused on offline-first functionality for everyday tasks.
Portfolio
13
Apps
What other apps does Mustafa Tolga DALBUDAK make?
Explore the full Mustafa Tolga DALBUDAK report
Portfolio breakdown, audience, momentum, and every app published by Mustafa Tolga DALBUDAK.
What do users think recently?
High confidence · Latest 100 of 766.9K total reviews analyzed
What is the recent mood?
Recent user voice shows a excited sentiment.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Cuspart: Calculator+?
Where is it available?
Localized markets (11)
How's The Utilities Market?
How does it evolve in the Utilities market?
The app maintains a 4.35 rating on Android with over 766,000 reviews, indicating a stable user base for basic utility. However, the lack of iOS traction suggests the product is currently failing to compete in the high-value Apple ecosystem.
Rank progression
65 active rankings tracked — 30-day window
The rivals identified
Nemeses(1)
This app directly competes for the power-user segment by offering specialized tablet-optimized workflows that go beyond standard mobile calculator functionality.
Contenders(4)
Directly challenges the target's core utility offering by providing a high-precision, classic calculator experience with legacy multitasking support.
Competes in the technical utilities space by providing specialized physics-based calculation engines for engineering professionals.
Targets the niche productivity market by focusing exclusively on right-triangle geometry solvers rather than general-purpose arithmetic.
Competes on speed and efficiency, targeting users who prioritize rapid, real-time calculation results over complex scientific functions.
Differentiators
- Delivers live, instantaneous results as the user types, significantly reducing the time to complete calculations
- Implements a smart history feature that organizes past inputs more intuitively than the target's current layout
Same space(3)
Shares the same utility category by focusing on simplified, high-speed unit conversion for general users.
Competes for the same productivity-focused user base by offering advanced expression-based conversion capabilities.
Differentiators
- Allows for expression input, enabling users to perform math directly within the conversion interface
- Supports user-defined units, providing a level of customization that the target app currently lacks
Targets the same professional utility audience by offering specialized conversion tools for engineering and scientific fields.
Differentiators
- Provides specialized engineering units that are not present in standard consumer-grade calculator applications
- Offers a completely ad-free experience, which serves as a strong value proposition against ad-supported calculators
Compare Cuspart: Calculator+ against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Cuspart: Calculator+
Strengths to defend, gaps to attack
Core Strengths
- Customizable UI themes allow for personalized user experience
- Broad scientific function set covers standard engineering requirements
Critical Frictions
- Missing persistent history tape for audit trails
- No widget or wearable integration
- Zero rating count on iOS store
Growth Levers
- Integrate real-time currency conversion for international utility
- Build history-tape feature to match nemesis retention
Market Threats
- Incumbents with history-management features siphon power users
- High-velocity competitors reduce time-to-result for basic math
What are the next best moves?
Ship persistent history tape because it is the #1 retention gap vs Calculator⁼ → increase daily active usage
Nemesis analysis identifies history tape as the primary driver of user retention and auditability.
Trade-off: Pause UI theme customization updates — history tape has higher impact on retention.
Audit iOS discoverability because 0 reviews indicate a broken store funnel → recover lost market share
Platform metadata shows 0 rating count on iOS despite 3 years of availability.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The lack of a history tape is not a feature gap but a strategic failure, as it relegates the app to a one-off calculator rather than a professional tool.
Feature Gaps vs Competitors
- Persistent history tape (available in Calculator⁼)
- Real-time currency conversion (available in Calculator⁼)
- Apple Watch/Widget integration (available in CalcFast)
Key Takeaways
Cuspart provides a functional scientific toolset, but it lacks the auditability features that drive retention in the utility market, so the PM should prioritize a history tape to prevent churn to incumbents.
Where Is It Heading?
Stable
The utility market is consolidating around apps that offer multi-functional suites like currency conversion and history tracking. Cuspart remains exposed to churn because it treats the calculator as a static tool rather than a dynamic productivity asset.
The absence of a persistent history tape forces power users to switch to rivals, which limits long-term growth potential.
Recent updates focus on stability rather than feature expansion, signaling a maintenance-mode posture in a competitive market.