--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Calcu-Logarithm" developer_entity: "Eteri Byazrova" bundle_id: "com.graphmath.Calcu-Logarithm" app_store_id: "6698852208" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-12-13" report_date: "2026-09-08" last_verified: "2026-09-08T00:00:00.000Z" report_version: "5.9" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 22 momentum_velocity: "zombie" intelligence_version: 3 tags: ["education", "free", "mobile app", "app review", "app analysis", "students", "mathematics", "enthusiasts"] canonical_url: "https://marlvel.ai/apps/calcu-logarithm" license: "CC-BY-NC 4.0" content_version: "v2" --- # Calcu-Logarithm Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 5 > **TL;DR:** Calcu-Logarithm is a education app by Eteri Byazrova, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Calcu-Logarithm is a education app by Eteri Byazrova. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Education | | **Developer** | Eteri Byazrova | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 22d | ## Metadata & Market Performance - **Publisher:** Eteri Byazrova - **Category:** Education - **Target Audience:** Students and mathematics enthusiasts requiring advanced logarithmic calculation, proof, and visualization tools. - **Platforms:** iOS - **Version Reviewed:** 5.9 - **Report Date:** 2026-09-08 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6698852208 - **Bundle ID:** com.graphmath.Calcu-Logarithm - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-09-08 ## Executive Snapshot **What it is:** Calcu-Logarithm is an educational utility for solving logarithmic equations and visualizing mathematical proofs on iOS. **Why users hire it:** It removes the friction of manual logarithmic computation and proof-verification for students who need step-by-step transparency. ## App DNA (Features & Intent) - **[Differentiator] M.Goldberg Algorithm Implementation:** Provides step-by-step digit-by-digit computation of log_10(x) based on the M.Goldberg algorithm. * *User Intent:* Users seek enhanced value through premium features. - **[Differentiator] Taylor Series Computation:** Explains and illustrates the calculation of log_e(x) using Taylor series expansions. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Differentiator] Virtual Slide Rule:** Simulates a physical slide rule for multiplication and division operations. ## Market Position {#market-position} Calcu-Logarithm maintains a niche position in the Education category as a free, proof-oriented utility. The lack of recent feature updates relative to its release date indicates a stable, low-velocity presence rather than a growth-oriented market strategy. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** Calcu-Logarithm is distributed as a free utility with no visible in-app purchases or subscription gates. ## SWOT Analysis {#swot} **Core Strengths:** - Specialized proof-based tools provide utility beyond standard calculators. - Virtual slide rule offers a unique educational interface. **Growth Levers:** - Interactive problem-solving sets could transition the utility into an active learning platform. ## Recent Changes (v2 → v3) {#recent-changes} Calcu-Logarithm maintains a stagnant development posture, with no functional changes since the last report. The analysis has been updated to more clearly define the app's competitive vulnerabilities within the Education category. **Overall trend**: Stable **Compared at**: 2026-09-08 ### Medium-impact changes - **[Added] Expanded SWOT Analysis** (swot) ### Low-impact changes - **[Shifted] Outlook Trend Adjustment** (positioning) ## What's New - **Latest (v5.9, 8 months ago):** Launched Discrete Probability, a new statistical app featuring a calculator, proofs, and graphing tools. ## App Momentum (Zombie) {#momentum} - Ships no feature updates since December 2025. - Maintains maintenance-only release cadence. > **Cadence:** 1 total versions · 1 majors in last 6 months · 268 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Calcu-Logarithm is an education app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** Calcu-Logarithm provides high-utility proof tools, but the nine-month development silence limits its ability to retain users who require active feature expansion. **Best for:** Students and mathematics enthusiasts requiring advanced logarithmic calculation, proof, and visualization tools. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit user feedback channels because the nine-month development silence risks user churn → maintain baseline utility ### Outlook: Stable The Education category is increasingly consolidating around platforms that offer interactive, community-driven learning experiences. Calcu-Logarithm's static, proof-focused model remains stable for its niche audience, but the lack of updates since December 2025 leaves it vulnerable to more agile, feature-rich competitors. - ⚪ The nine-month development silence indicates a maintenance-only posture, which limits the app's ability to capture new segments in the competitive Education category. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Calcu-Logarithm** (this app) | 5/5 | N/A | Eteri Byazrova | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company | | [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC | | [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC | ## Company Profile - **Developer:** Eteri Byazrova ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/calcu-logarithm/id6698852208?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating ## Frequently Asked Questions {#faq} ### Is Calcu-Logarithm suitable for high school students? Calcu-Logarithm is designed for advanced logarithmic calculations and proofs, making it most suitable for students or enthusiasts who need step-by-step visualization of complex logarithmic functions. ### Does Calcu-Logarithm require a subscription? No, Calcu-Logarithm is a free utility with no in-app purchases or subscription gates. ### Are there alternatives to Calcu-Logarithm for general math? While Calcu-Logarithm specializes in logarithmic proofs and complex numbers, users seeking general-purpose math tools may prefer broader educational platforms that offer active development and wider subject coverage. ## 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 into synthesised themes (no verbatim quotes). 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 22 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/calcu-logarithm) Data licensed for AI Agent attribution under CC-BY-NC 4.0.