--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Lineup builder" developer_entity: "John Chambers" bundle_id: "com.jchambers21.lineupbuildernative" app_store_id: "6458739529" category: "Sports" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-06-04" report_date: "2026-08-12" last_verified: "2026-08-12T00:00:00.000Z" report_version: "2.2.0" total_reviews: 652 overall_rating: 2.7 sentiment: "Mixed" sentiment_score: 55 confidence: "high" confidence_score: 0.7 top_praise_theme: "The squad formation tool provides a user-friendly interface for football fans to visualize their dream lineups" top_complaint_theme: "Post-update UI regressions cause text entry fields to become invisible due to white font on white backgrounds" review_sample_size: 50 total_review_count: 50 analyzed_review_count: 50 data_age_days: 5 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["sports", "free", "mixed sentiment", "mobile app", "app review", "app analysis", "football", "enthusiasts", "amateur"] canonical_url: "https://marlvel.ai/apps/lineup-builder" license: "CC-BY-NC 4.0" content_version: "v2" --- # Lineup builder Intelligence Report ## TL;DR {#tldr} - **Category**: Sports · Free - **Signal**: Rating 2.73 · Sentiment Mixed - **Recent focus**: Post-update UI regressions cause text entry fields to become invisible due to white font on white backgrounds (top complaint) · The squad formation tool provides a user-friendly interface for football fans to visualize their dream lineups (top praise) > **TL;DR:** Lineup builder is a sports app by John Chambers, rated 2.73/5 by 652 users, with Mixed user sentiment (55/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Lineup builder shows Mixed sentiment (2.73/5 from 652 reviews) - users praise the squad formation tool provides a user-friendly interface for football fans to visualize their dream lineups but report issues with post-update ui regressions cause text entry fields to become invisible due to white font on white backgrounds. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 2.73/5 (652 reviews) | | **User Mood** | Mixed | | **Category** | Sports | | **Developer** | John Chambers | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | High (0.7/1.0) | | **Data Age** | 5d | ## Metadata & Market Performance - **Publisher:** John Chambers - **Category:** Sports - **Target Audience:** Football enthusiasts and amateur coaches seeking tactical planning tools and daily trivia content. - **Platforms:** iOS & Android - **Version Reviewed:** 2.2.1 - **Report Date:** 2026-08-12 - **Signal Count:** 50 reviews analyzed - **Confidence:** High (0.7/1.0) - **App Store ID (iOS):** 6458739529 - **Bundle ID:** com.jchambers21.lineupbuildernative - **Google Play ID:** com.jchambers21.lineupbuildernative - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-12 ## Executive Snapshot **What it is:** Lineup builder is a football formation creator and post-match analysis tool for amateur coaches and fans on iOS and Android. **Why users hire it:** Users hire the app to visualize tactical setups and track amateur match stats, serving the need for low-stakes team management that professional-grade tools ignore. ## App DNA (Features & Intent) - **[Standard] Squad Builder:** Drag-and-drop interface for custom formations. Drives daily active usage and ad-impression inventory. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Differentiator] Post-match Analysis:** Tools for tracking goals, cards, and player ratings. Retention loop for amateur coaches, increasing session frequency. * *User Intent:* Users want visibility into their own performance and progress. - **[Differentiator] Daily Football Quizzes:** Interactive daily challenges. Increases DAU/MAU ratio and total ad-inventory. * *User Intent:* Users are motivated by consistent progression and daily incentives. ## Market Position {#market-position} Lineup builder occupies the amateur-focused tactical sandbox niche, with a 4.57-star rating on iOS. The lack of professional league data limits its utility compared to live-data competitors. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** Ad-supported model relying on high-frequency engagement from daily quizzes and tactical tools. ## 🟡 User Sentiment (High Confidence: 50 of 50 reviews analyzed) {#user-sentiment} - **Overall Rating:** 2.73/5 - **Platform Split:** iOS 4.6/5 (30 ratings) | Android 2.6/5 (622 ratings) - **Overall Sentiment:** Mixed ### Top Praises - **The squad formation tool provides a user-friendly interface for football fans to visualize their dream lineups** ### Top Complaints (Impact Areas) - **Post-update UI regressions cause text entry fields to become invisible due to white font on white backgrounds** ## SWOT Analysis {#swot} **Core Strengths:** - Custom image uploads enable high-level personalization for amateur team kits **Growth Levers:** - Integrating local league databases would differentiate the app from generic formation creators ## Recent Changes (v2 → v3) {#recent-changes} The report reflects a strategic pivot in positioning, framing the app as a manual, low-stakes alternative to professional data-heavy tools, while refining SWOT items to emphasize personalization features. **Overall trend**: Stable **Compared at**: 2026-08-12 ### High-impact changes - **[Shifted] Positioning Pivot** (positioning) ### Medium-impact changes - **[Added] New Strength: Custom Personalization** (swot) - **[Added] New Opportunity: Local League Integration** (swot) - **[Removed] Database Depth Weakness Removed** (swot) ## What's New - **Latest (v2.2.0, 10 months ago):** Updated player database for the 2025/26 season. - **Last Major (v2.2.1, 2 months ago):** Implemented advertisement consent management. ## App Momentum (Maintenance) {#momentum} - Ships ~2 releases per year. - Last major update 10 months ago. > **Cadence:** 2 total versions · 0 majors in last 6 months · 68 days since last update · 260 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Lineup builder is a sports app that is completely free. With a 2.73/5 rating from 652 reviews, it shows mixed user reception. > **Bottom Line:** Lineup builder sustains engagement through creative personalization, but technical instability in the latest version creates a high churn risk, so the PM must prioritize a stability sprint to stabilize the core retention loop. **Best for:** Football enthusiasts and amateur coaches seeking tactical planning tools and daily trivia content. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Rebuild navigation logic because data-saving bugs wipe lineups during screen transitions → restore session retention ### Outlook: Declining Users report: Casual football tools face consolidation as users migrate toward apps with live-data integration. Lineup builder's maintenance-mode update cadence leaves it exposed to rivals that offer real-time player database updates, so the PM must prioritize stability to prevent further sentiment decline. - 🔴 Technical instability in the latest version (data-saving bugs, invisible text) erodes the daily active habit, which compounds the rating drag already visible on Android. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 2.73/5 | | Total Reviews | 652 | | Sentiment | Mixed (55/100) | | Confidence | High | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Lineup builder** (this app) | 2.73/5 | Mixed | John Chambers | | [DraftKings Predictions](https://marlvel.ai/apps/draftkings-predictions) | 4.8/5 | Mixed | DraftKings | | [DraftKings: Sports & Casino](https://marlvel.ai/apps/draftkings-sportsbook-casino) | 4.8/5 | n/a | DraftKings | | [FanDuel Predicts](https://marlvel.ai/apps/fanduel-predicts) | 4.8/5 | n/a | FanDuel, Inc. | | [Fish AI - AI Fishing App](https://marlvel.ai/apps/com-fishai-app) | 4.7/5 | n/a | GymBros Inc. | | [NBA: Live Games & Scores](https://marlvel.ai/apps/nba-live-games-scores) | 4.5/5 | n/a | NBA MEDIA VENTURES, LLC | ## Company Profile - **Developer:** John Chambers - **Website:** [https://lineup-builder.co.uk](https://lineup-builder.co.uk) - **Social:** [X/Twitter](https://twitter.com/intent) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/lineup-builder/id6458739529?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.jchambers21.lineupbuildernative&hl=en&gl=us) - **Dev Site:** [Official Website](https://lineup-builder.co.uk) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*DraftKings Predictions*](https://marlvel.ai/apps/draftkings-predictions) (DraftKings) · 4.8/5 Rating - [*DraftKings: Sports & Casino*](https://marlvel.ai/apps/draftkings-sportsbook-casino) (DraftKings) · 4.8/5 Rating - [*FanDuel Predicts*](https://marlvel.ai/apps/fanduel-predicts) (FanDuel, Inc.) · 4.8/5 Rating - [*Fish AI - AI Fishing App*](https://marlvel.ai/apps/com-fishai-app) (GymBros Inc.) · 4.7/5 Rating - [*NBA: Live Games & Scores*](https://marlvel.ai/apps/nba-live-games-scores) (NBA MEDIA VENTURES, LLC) · 4.5/5 Rating - [*PrizePicks - Sports Picks*](https://marlvel.ai/apps/prizepicks-sports-picks) (SidePrize, LLC) · 4.5/5 Rating - [*Sporttrade: Prediction Markets*](https://marlvel.ai/apps/sporttrade-prediction-markets) (SPORTTRADE INC) · 4.7/5 Rating | Positive Sentiment - [*플레이공*](https://marlvel.ai/apps/com-tychesoft-playball) (Tychesoft) · N/A Rating - [*더블이글 - 요즘 골프예약*](https://marlvel.ai/apps/com-albatrss-de) (Double Eagle Inc.) · 4.0/5 Rating - [*테니스타운*](https://marlvel.ai/apps/com-momzit-tennistown) (link.tennistown) · 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:** 0.7/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 50 - **Data Sources:** user reviews, 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:** 5 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/lineup-builder) Data licensed for AI Agent attribution under CC-BY-NC 4.0.