--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "DoF Table" developer_entity: "Suguru Yamamoto" bundle_id: "jp.sgry.dofcalc" app_store_id: "1016278440" category: "Photo & Video" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2020-06-28" report_date: "2026-09-23" last_verified: "2026-09-23T00:00:00.000Z" report_version: "1.3.0" total_reviews: 14 overall_rating: 4.1 confidence: "low" confidence_score: 0.2 data_age_days: 7 momentum_velocity: "zombie" intelligence_version: 2 tags: ["photo & video", "freemium", "mobile app", "app review", "app analysis", "photographers", "camera", "enthusiasts"] canonical_url: "https://marlvel.ai/apps/dof-table" license: "CC-BY-NC 4.0" content_version: "v2" --- # DoF Table Intelligence Report ## TL;DR {#tldr} - **Category**: Photo & Video · Freemium - **Signal**: Rating 4.14 > **TL;DR:** DoF Table is a photo & video app by Suguru Yamamoto, rated 4.14/5 by 14 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** DoF Table is a photo & video app by Suguru Yamamoto. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.14/5 (14 reviews) | | **Category** | Photo & Video | | **Developer** | Suguru Yamamoto | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 7d | ## Metadata & Market Performance - **Publisher:** Suguru Yamamoto - **Category:** Photo & Video - **Target Audience:** Photographers and camera enthusiasts requiring precise optical calculations for specific gear combinations. - **Platforms:** iOS - **Version Reviewed:** 1.3.0 - **Report Date:** 2026-09-23 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 1016278440 - **Bundle ID:** jp.sgry.dofcalc - **Data Window:** Analysis based on signals collected up to 2026-09-23 ## Executive Snapshot **What it is:** DoF Table is a utility for photographers that calculates depth of field ranges in a table format based on specific camera and lens models. **Why users hire it:** The app removes the need for manual parameter entry by providing a pre-filtered, equipment-aware database that prevents users from selecting physically impossible optical settings. ## App DNA (Features & Intent) - **[Differentiator] Equipment-Aware Filtering:** Hides DoF values that are physically impossible to achieve with the selected equipment, reducing user error. * *User Intent:* Users want to quickly find relevant content or features. - **[Differentiator] User-Defined Database:** Allows manual entry of custom camera and lens specifications with backup/restore via file sharing. * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Pro-Exclusive Calculations:** Gates Field of View, Angle of View, and 35mm equivalent focal length behind a one-time purchase. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} DoF Table occupies a narrow utility niche in the Photo & Video category, relying on a legacy database model. The lack of updates for over 2,200 days signals a maintenance-only posture that limits its ability to compete with modern, cloud-synced alternatives. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with ads, Pro version via one-time in-app purchase - **Analysis:** The freemium model gates advanced optical metrics and ad removal behind a one-time Pro purchase, targeting users who prioritize a distraction-free interface. ## SWOT Analysis {#swot} **Core Strengths:** - Equipment-aware filtering prevents physically impossible optical settings - User-defined database allows for personalized equipment library management **Growth Levers:** - Crowdsourcing lens database updates to reduce maintenance burden - Modernizing UI to support current iOS design standards ## What's New - **Latest (v1.3.0, 6 years ago):** Introduced beta-stage Dark Mode support and corrected the LAOWA 100mm F2.8 2X Ultra Macro APO lens specification. ## App Momentum (Zombie) {#momentum} - Dormant development for six years. - No feature updates since 2020. > **Cadence:** 1 total versions · 1 majors in last 6 months · 2277 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} DoF Table is a photo & video app that is free with in-app purchases. It holds a 4.14/5 rating from 14 reviews. > **Bottom Line:** DoF Table relies on its equipment-aware filtering to maintain utility, but the six-year development silence creates a critical obsolescence risk. A pivot to a community-driven database would unlock the retention currently lost to the lack of active maintenance. **Best for:** Photographers and camera enthusiasts requiring precise optical calculations for specific gear combinations. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit current iOS compatibility because the app has not been updated in over six years → prevent sudden app store removal ### Outlook: Declining The market for photography utilities is shifting toward cloud-connected, frequently updated tools that support the latest hardware releases. DoF Table remains in a maintenance-only state, which leaves it vulnerable to obsolescence as mobile operating systems evolve, ultimately signaling a decline in relevance. - 🔴 The six-year update gap indicates a maintenance-only posture, which erodes user trust and increases the likelihood of platform-level deprecation. - 🔴 Lack of cloud-sync capabilities prevents the app from competing with modern, cross-platform photography utilities that offer seamless gear management. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.14/5 | | Total Reviews | 14 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **DoF Table** (this app) | 4.14/5 | N/A | Suguru Yamamoto | | [AI Catch: AI Video Generator](https://marlvel.ai/apps/com-prominent-aicatch) | 4.4/5 | n/a | Prominent Fortune PTE. LTD | | [AI Video Editor・Trim, Compress](https://marlvel.ai/apps/ai-video-editor-trim-compress) | N/A/5 | N/A | Ankitbhai Jivani | | [Cantina: AI Video & Characters](https://marlvel.ai/apps/is-signal-ios) | 4.8/5 | N/A | Cantina, Inc | | [CapCut: Photo & Video Editor](https://marlvel.ai/apps/capcut-photo-video-editor) | 4.1/5 | Mixed | Bytedance Pte. Ltd | | [Instagram](https://marlvel.ai/apps/instagram) | 4.3/5 | n/a | Instagram, Inc. | ## Company Profile - **Developer:** Suguru Yamamoto - **Website:** [https://apps.apple.com/us/developer/suguru-yamamoto/id1016278439?uo=4](https://apps.apple.com/us/developer/suguru-yamamoto/id1016278439?uo=4) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/dof-table/id1016278440?uo=4) - **Dev Site:** [Official Website](https://apps.apple.com/us/developer/suguru-yamamoto/id1016278439?uo=4) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*AI Catch: AI Video Generator*](https://marlvel.ai/apps/com-prominent-aicatch) (Prominent Fortune PTE. LTD) · 4.4/5 Rating - [*AI Video Editor・Trim, Compress*](https://marlvel.ai/apps/ai-video-editor-trim-compress) (Ankitbhai Jivani) · N/A Rating - [*Cantina: AI Video & Characters*](https://marlvel.ai/apps/is-signal-ios) (Cantina, Inc) · 4.8/5 Rating - [*CapCut: Photo & Video Editor*](https://marlvel.ai/apps/capcut-photo-video-editor) (Bytedance Pte. Ltd) · 4.1/5 Rating - [*Instagram*](https://marlvel.ai/apps/instagram) (Instagram, Inc.) · 4.3/5 Rating - [*Lightroom: AI Photo Editor*](https://marlvel.ai/apps/lightroom-ai-photo-editor) (Adobe Inc.) · 4.8/5 Rating | Positive Sentiment - [*Picsart AI Photo Editor, Video*](https://marlvel.ai/apps/picsart-ai-photo-editor-video) (PicsArt, Inc.) · 4.3/5 Rating - [*Video Star*](https://marlvel.ai/apps/com-frontierdesign-videostar) (Frontier Design Group) · 3.5/5 Rating - [*짤봇*](https://marlvel.ai/apps/blackturtle2-jjalbot-ios) (jaesung Lee) · N/A Rating - [*예쁜 사진 - 좋은 하루의 시작*](https://marlvel.ai/apps/kwonkunkun-goodmorning) (KunWoo Kwon) · N/A Rating ## Frequently Asked Questions {#faq} ### Is DoF Table still supported in 2026? The app has not received a major update since June 2020, indicating it is currently in a maintenance-only state. ### Does DoF Table work offline? Yes, the app functions as a locally-stored database, meaning it does not require an internet connection for its core depth of field calculations. ### What is the difference between the free and Pro versions? The Pro version removes advertisements and adds advanced calculations for Field of View, Angle of View, and 35mm equivalent focal length. ## 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, 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:** 7 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/dof-table) Data licensed for AI Agent attribution under CC-BY-NC 4.0.