--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "BLR Limits" developer_entity: "Oliver Buterbaugh" bundle_id: "com.buterbaugh.CrewLimitsCalculator" app_store_id: "6477339119" category: "Reference" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-03-15" report_date: "2026-08-09" last_verified: "2026-08-09T00:00:00.000Z" report_version: "1.2.0" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.05 data_age_days: 10 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["reference", "free", "mobile app", "app review", "app analysis", "commercial", "airline", "pilots"] canonical_url: "https://marlvel.ai/apps/blr-limits" license: "CC-BY-NC 4.0" content_version: "v2" --- # BLR Limits Intelligence Report ## TL;DR {#tldr} - **Category**: Reference · Free - **Signal**: Rating 5 > **TL;DR:** BLR Limits is a reference app by Oliver Buterbaugh, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** BLR Limits is a reference app by Oliver Buterbaugh. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Reference | | **Developer** | Oliver Buterbaugh | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 10d | ## Metadata & Market Performance - **Publisher:** Oliver Buterbaugh - **Category:** Reference - **Target Audience:** Commercial airline pilots requiring quick, accurate verification of flight duty period limits against EASA and operator regulations. - **Platforms:** iOS - **Version Reviewed:** 1.2.0 - **Report Date:** 2026-08-09 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6477339119 - **Bundle ID:** com.buterbaugh.CrewLimitsCalculator - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-09 ## Executive Snapshot **What it is:** BLR Limits is a reference utility for commercial pilots that calculates flight duty period limits and push-by times on iOS. **Why users hire it:** Pilots hire this tool to verify complex regulatory compliance in real-time, reducing the risk of operational errors during flight planning. ## App DNA (Features & Intent) - **[Differentiator] Side-by-side limit cards:** Displays operator and regulatory FDP limits simultaneously for two, three, and four crew configurations. - **[Differentiator] Audit trail:** Provides a step-by-step breakdown of how each flight duty period limit is derived. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Push-by time calculator:** Computes flight deadlines based on report time, block hours, taxi, and sector count inputs. ## Market Position {#market-position} BLR Limits maintains a 5.0-star rating on the App Store with a utility-first focus. The lack of monetization and 147-day update gap signals a maintenance-mode posture that prioritizes stability over market-share expansion. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is currently offered for free with no visible monetization, positioning it as a utility tool for professional pilots. ## SWOT Analysis {#swot} **Core Strengths:** - Audit-trail transparency provides a defensible barrier for safety-critical compliance - Side-by-side limit cards reduce cognitive load for complex crew configurations **Growth Levers:** - Integration with airline scheduling APIs would automate push-by time calculations - Expansion into additional regulatory schemes would broaden the addressable market ## Recent Changes (v2 → v3) {#recent-changes} The intelligence report shows a shift in tactical priorities, moving from a generic monetization recommendation to specific product-led improvements for manual data entry and API integration. **Overall trend**: Stable **Compared at**: 2026-08-09 ### High-impact changes - **[Shifted] Strategic focus shift** (positioning) - **[Shifted] Action plan pivot** (features) ### Medium-impact changes - **[Shifted] SWOT item refinement** (swot) ## What's New - **Latest (v1.2.0, 4 months ago):** Redesigned UI with side-by-side flight inputs/limit cards on iPad and direct scheme table viewing. ## App Momentum (Maintenance) {#momentum} - Ships ~2 releases per year. - Quiet 4 months, bug fixes only. > **Cadence:** 1 total versions · 1 majors in last 6 months · 146 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} BLR Limits is a reference app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** BLR Limits provides high-value compliance transparency for pilots, but its manual-entry model and slow update cadence leave it exposed to automated scheduling rivals, so the PM should prioritize API-based data ingestion to secure long-term utility. **Best for:** Commercial airline pilots requiring quick, accurate verification of flight duty period limits against EASA and operator regulations. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Pivot manual input flow to a template-based system because manual entry is the #1 friction point for daily users → increase daily retention. ### Outlook: Stable The market for flight duty calculators is shifting toward automated, API-integrated scheduling tools. BLR Limits remains stable for now, but its reliance on manual inputs makes it vulnerable to churn if a competitor introduces direct airline-sync capabilities. - ⚪ The 147-day update gap indicates a maintenance-mode posture, which limits the app's ability to respond to evolving regulatory FTL schemes. - 🟢 The 5.0-star rating confirms the current feature set meets the core needs of the existing professional pilot user base. ## 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 | | :--- | :--- | :--- | :--- | | **BLR Limits** (this app) | 5/5 | N/A | Oliver Buterbaugh | | [올어바웃성경](https://marlvel.ai/apps/com-allabout-bibleapp) | 5.0/5 | N/A | Gilju Lee | | [Hallow: Prayer & Meditation](https://marlvel.ai/apps/hallow-prayer-meditation) | 4.7/5 | n/a | Hallow, Inc. | | [고려대 한국어 속담 사전](https://marlvel.ai/apps/app--428) | N/A/5 | N/A | DaolSoft, Co., Ltd. | | [우리말 의학사전](https://marlvel.ai/apps/app--427) | N/A/5 | N/A | DaolSoft, Co., Ltd. | | [공인중개사 용어사전](https://marlvel.ai/apps/app--429) | N/A/5 | N/A | DaolSoft, Co., Ltd. | ## Company Profile - **Developer:** Oliver Buterbaugh ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/blr-limits/id6477339119?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*올어바웃성경*](https://marlvel.ai/apps/com-allabout-bibleapp) (Gilju Lee) · 5.0/5 Rating - [*Hallow: Prayer & Meditation*](https://marlvel.ai/apps/hallow-prayer-meditation) (Hallow, Inc.) · 4.7/5 Rating - [*고려대 한국어 속담 사전*](https://marlvel.ai/apps/app--428) (DaolSoft, Co., Ltd.) · N/A Rating - [*우리말 의학사전*](https://marlvel.ai/apps/app--427) (DaolSoft, Co., Ltd.) · N/A Rating - [*공인중개사 용어사전*](https://marlvel.ai/apps/app--429) (DaolSoft, Co., Ltd.) · N/A Rating - [*브리태니커 콘사이스 백과사전*](https://marlvel.ai/apps/app--425) (DaolSoft, Co., Ltd.) · N/A Rating - [*100 Radio Hrvatska (HR) : Vijesti, glazba, Nogomet*](https://marlvel.ai/apps/100-radio-hrvatska-hr-vijesti-glazba-nogomet) (Thomas Gesland) · 1.0/5 Rating - [*100 US Citizenship Test Questions 2017*](https://marlvel.ai/apps/100-us-citizenship-test-questions-2017) (Andrey Fetisov) · 4.7/5 Rating - [*١٠١ پرسیار لە زانستی قورئان*](https://marlvel.ai/apps/app--952) (Abdulwahab F. Omar) · 5.0/5 Rating - [*112 Bible Maps + Commentaries*](https://marlvel.ai/apps/com-biblestudypro-112biblemaps) (Sand Apps Inc.) · 3.5/5 Rating ## 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:** 10 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/blr-limits) Data licensed for AI Agent attribution under CC-BY-NC 4.0.