--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Cuspart: Calculator+" developer_entity: "Mustafa Tolga DALBUDAK" bundle_id: "com.calculator.Calculator-Pro-App" app_store_id: "1572084996" google_play_id: "com.google.android.calculator" category: "Utilities" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-03-23" report_date: "2026-05-19" last_verified: "2026-05-19T19:17:32.408Z" report_version: "3.3.4550" total_reviews: 766861 overall_rating: 4.35 sentiment: "Excited" sentiment_score: 85 confidence: "high" confidence_score: 0.7 review_sample_size: 766861 data_age_days: 43 momentum_velocity: "maintenance" intelligence_version: 3 nemesis: "Calculator⁼" competitor_count: 11 tags: ["utilities", "freemium", "excited sentiment", "mobile app", "app review", "app analysis", "students", "professionals", "requiring"] canonical_url: "https://marlvel.ai/intel-report/utilities/cuspart-calculator-1" license: "CC-BY-NC 4.0" content_version: "v2" --- # Cuspart: Calculator+ App Audit ## TL;DR {#tldr} - **Category**: Utilities · Freemium - **Signal**: Rating 4.35 · Sentiment Excited > **TL;DR:** Cuspart: Calculator+ is a utilities app by Mustafa Tolga DALBUDAK, rated 4.35/5 by 766.9K users, with Excited user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Cuspart: Calculator+ has Excited user sentiment with a 4.35/5 rating from 766.9K reviews. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.35/5 (766.9K reviews) | | **User Mood** | Excited | | **Category** | Utilities | | **Developer** | Mustafa Tolga DALBUDAK | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | High (0.7/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Mustafa Tolga DALBUDAK - **Category:** Utilities - **Target Audience:** Students and professionals requiring a mobile tool for basic and advanced scientific calculations. - **Platforms:** iOS & Android - **Version Audited:** 3.3.4550 - **Audit Date:** 2026-05-19 - **Signal Count:** 766861 reviews analyzed - **Confidence:** High (0.7/1.0) - **App Store ID (iOS):** 1572084996 - **Bundle ID:** com.calculator.Calculator-Pro-App - **Google Play ID:** com.google.android.calculator - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-05-19 ## Executive Snapshot **What it is:** Cuspart: Calculator+ is a scientific and basic math utility app available on iOS and Android. **Why users hire it:** Users hire this app to perform complex scientific computations, but the lack of audit features forces them to seek alternatives for professional workflows. ## App DNA (Features & Intent) - **[Standard] Scientific Calculator Functions:** Trigonometric, hyperbolic, logarithmic, and exponential functions. - **[Differentiator] Interface Customization:** Customizable colors and light/dark themes. * *User Intent:* Users value self-expression and personalized experiences. - **[Basic] Basic Arithmetic Operations:** Standard addition, subtraction, multiplication, division, and percentage. ## Market Position {#market-position} 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. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with full feature access, Optional subscription via iTunes - **Analysis:** Core functionality is free, with optional subscription revenue managed through Apple ID. ## 🟢 User Sentiment (High Confidence: 766.9K reviews) {#user-sentiment} - **Overall Rating:** 4.35/5 - **Platform Split:** Android 4.4/5 (766.9K ratings) - **Overall Sentiment:** Excited ## SWOT Analysis {#swot} **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 ## Recent Changes (v2 → v3) {#recent-changes} The report shifts focus from UI-related usability complaints to a strategic gap in professional utility features, specifically the absence of a persistent history tape. **Overall trend**: Mixed **Compared at**: 2026-05-19 ### High-impact changes - **[Shifted] Strategic focus shift** (positioning) — Executive summary moved from criticizing button design to highlighting the lack of auditability and history features. ### Medium-impact changes - **[Improved] Overall sentiment status** (sentiment) — Overall sentiment classification changed from 'mixed' to 'positive'. - **[Added] New weaknesses identified** (swot) — Added 'Missing persistent history tape' and 'Zero rating count on iOS' to the weakness profile. - **[Added] Feature gap identification** (features) — Added 'Persistent history tape' and 'Real-time currency conversion' to the feature gaps list. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Cuspart: Calculator+ vs Calculator⁼ — Head to Head - **[Calculator⁼](https://marlvel.ai/intel-report/utilities/calculator-15)** by Impala Studios: This app is the primary nemesis due to its massive install base and direct feature overlap in the general-purpose scientific calculator market. - **Key differences:** - Includes a dedicated history tape feature that allows users to review and edit past calculations - Provides a live currency converter that updates exchange rates in real-time for international users - Offers a specialized scientific mode that rivals the target's advanced function set with better UI - **Where Cuspart: Calculator+ wins:** - ✅ Target app offers a more streamlined interface for basic arithmetic operations - ✅ Target app includes specific logarithmic and factorial functions that are easier to access - **Where Calculator⁼ wins:** - ❌ Superior user retention through the inclusion of a persistent history tape for audit trails - ❌ Global utility advantage provided by integrated live currency conversion tools - **Verdict:** The target must prioritize a history management feature and real-time data integrations to prevent further user churn to this incumbent. ### Contenders (Strong Challengers) - **[CalcFast](https://marlvel.ai/intel-report/utilities/calcfast)** by Hannes Sverrisson: This app competes by extending the calculator experience into the Apple ecosystem through watch and widget integration. - Offers a dedicated Apple Watch app, allowing for quick calculations without needing to unlock a phone - Provides a Today Extension widget for immediate access to calculation tools directly from the home screen - **[Dash Calc: Simple Fast Math](https://marlvel.ai/intel-report/utilities/dash-calc-simple-fast-math)** by Enbright LLC: A high-velocity competitor that focuses on speed and modern UX, appealing to users frustrated by bloated calculator apps. - 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 - **[Modulus Calculator](https://marlvel.ai/intel-report/utilities/modulus-calculator)** by Theodore Dubois: This contender positions itself as an all-in-one suite, capturing users who want a calculator combined with financial utility tools. - Integrates a GST calculator specifically designed for tax-sensitive financial transactions and retail math - Provides a broader utility suite that reduces the need for users to install separate conversion apps - **[Calculator +](https://marlvel.ai/intel-report/utilities/calculator-16)** by xNeat.com: This app competes directly by targeting power users who require advanced mathematical capabilities like graphing and equation solving. - Features a built-in graphing engine that visualizes complex functions beyond the target's static output - Includes dedicated solvers for polynomial and linear equations, catering to students and engineering professionals ### Peers (What They Do Better) - **[Unit Converter Calculator Pro](https://marlvel.ai/intel-report/utilities/unit-converter-calculator-pro)** by Rome Rock LLC: This app bridges the gap between calculators and converters, directly challenging the target's utility positioning. - Includes a scientific prefix mode that is essential for users working with large-scale physical measurements - Provides a conversion history log that helps users track their previous unit transformation tasks - **[Unit Converter Pro](https://marlvel.ai/intel-report/productivity/unit-converter-pro)** by Oyku Gul Imran: This app serves the same productivity-oriented audience by offering advanced input methods for complex conversions. - 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 - **[Unit Converter For Engineers](https://marlvel.ai/intel-report/utilities/unit-converter-for-engineers)** by Amanuel Abebaw: This app targets the professional segment of the utility market, competing for the same productivity-focused user base. - 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 - **[Quick Unit Converter: All in 1](https://marlvel.ai/intel-report/productivity/quick-unit-converter-all-in-1)** by Moaaz Afzal: While primarily a converter, it overlaps with the target's utility category by capturing users who need math for unit conversions. - Focuses on offline currency conversion, ensuring utility in regions with poor or expensive data connectivity - Supports multi-category conversion, allowing users to switch between units seamlessly within a single session ### New Kids on the Block (What's Innovative) - **[Aspect Ratio Pro](https://marlvel.ai/intel-report/utilities/aspect-ratio-pro)** by App ahead GmbH: This newcomer targets a specific subset of the calculator market, focusing on design-centric mathematical tasks. - Provides a specialized rule-of-three calculator that simplifies common design and photography aspect ratio tasks - **[Age Calculator – Date Counter](https://marlvel.ai/intel-report/utilities/age-calculator-date-counter)** by Mustafa Kulac: A niche utility app that competes for the same 'quick-task' user attention as the target's basic calculator functions. - Features live time tracking and asset monitoring, moving beyond static math into dynamic date-based calculations ## What's New - **Latest (v9.1 (886477075), 1 months ago):** Updated UI to Material 3 Expressive design. ## App Momentum (Maintenance) {#momentum} - No notable signals last 3 months. > **Cadence:** 2 total versions · 1 majors in last 6 months · 57 days since last update · 449 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Cuspart: Calculator+ is a market-leading utilities app that is free with in-app purchases. With a 4.35/5 rating from 766.9K reviews, it delivers strong user satisfaction. > **Bottom Line:** 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. **Best for:** Students and professionals requiring a mobile tool for basic and advanced scientific calculations. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] 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: deprioritize Pause UI theme customization updates — history tape has higher impact on retention.)_ - [ ] [MAINTAIN] [MEDIUM IMPACT] 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: deprioritize Same-quarter capacity available — no major lever displaced.)_ ### Feature Gaps vs Competitors - Persistent history tape (available in Calculator⁼) - Real-time currency conversion (available in Calculator⁼) - Apple Watch/Widget integration (available in CalcFast) ### Outlook: 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. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.35/5 | | Total Reviews | 766.9K | | Sentiment | Excited (85/100) | | Confidence | High | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Cuspart: Calculator+** (this app) | 4.35/5 | Excited | Mustafa Tolga DALBUDAK | | [Modulus Calculator](https://marlvel.ai/intel-report/utilities/modulus-calculator) | 4.8/5 | Mixed | Theodore Dubois | | [Dash Calc: Simple Fast Math](https://marlvel.ai/intel-report/utilities/dash-calc-simple-fast-math) | 5.0/5 | Thrilled | Enbright LLC | | [Aspect Ratio Pro](https://marlvel.ai/intel-report/utilities/aspect-ratio-pro) | 4.0/5 | N/A | App ahead GmbH | | [Calculator⁼](https://marlvel.ai/intel-report/utilities/calculator-15) | 4.6/5 | Mixed | Impala Studios | | [Age Calculator – Date Counter](https://marlvel.ai/intel-report/utilities/age-calculator-date-counter) | N/A/5 | N/A | Mustafa Kulac | ## Company Profile - **Developer:** Mustafa Tolga DALBUDAK ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/cuspart-calculator/id1572084996?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.google.android.calculator&hl=en&gl=us) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Modulus Calculator*](https://marlvel.ai/intel-report/utilities/modulus-calculator) (Theodore Dubois) — 4.8/5 Rating | Mixed Sentiment - [*Dash Calc: Simple Fast Math*](https://marlvel.ai/intel-report/utilities/dash-calc-simple-fast-math) (Enbright LLC) — 5.0/5 Rating | Excellent Sentiment - [*Aspect Ratio Pro*](https://marlvel.ai/intel-report/utilities/aspect-ratio-pro) (App ahead GmbH) — 4.0/5 Rating | N/A Sentiment - [*Calculator⁼*](https://marlvel.ai/intel-report/utilities/calculator-15) (Impala Studios) — 4.6/5 Rating | Mixed Sentiment - [*Age Calculator – Date Counter*](https://marlvel.ai/intel-report/utilities/age-calculator-date-counter) (Mustafa Kulac) — N/A Rating | N/A Sentiment - [*Unit Converter For Engineers*](https://marlvel.ai/intel-report/utilities/unit-converter-for-engineers) (Amanuel Abebaw) — 5.0/5 Rating | N/A Sentiment - [*Calculator +*](https://marlvel.ai/intel-report/utilities/calculator-16) (xNeat.com) — 4.6/5 Rating | N/A Sentiment - [*CalcFast*](https://marlvel.ai/intel-report/utilities/calcfast) (Hannes Sverrisson) — 4.2/5 Rating | N/A Sentiment - [*Unit Converter Calculator Pro*](https://marlvel.ai/intel-report/utilities/unit-converter-calculator-pro) (Rome Rock LLC) — 4.7/5 Rating | Positive Sentiment - [*Quick Unit Converter: All in 1*](https://marlvel.ai/intel-report/productivity/quick-unit-converter-all-in-1) (Moaaz Afzal) — 5.0/5 Rating | N/A Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting. 4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.7/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 766.9K - **Data Sources:** user reviews, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/utilities/cuspart-calculator-1) Data licensed for AI Agent attribution under CC-BY-NC 4.0.