--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Week Number" developer_entity: "Sindre Sorhus" bundle_id: "com.sindresorhus.Week-Number" app_store_id: "6502579523" google_play_id: "com.thedrycake.weeknumber" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-01-23" report_date: "2026-05-17" last_verified: "2026-05-17T09:35:28.747Z" report_version: "1.3.0" total_reviews: 261 overall_rating: 4.86 sentiment: "Excited" sentiment_score: 85 confidence: "high" confidence_score: 0.85 review_sample_size: 261 data_age_days: 29 momentum_velocity: "active" intelligence_version: 3 nemesis: "Widget Wizard" competitor_count: 5 tags: ["utilities", "free", "excited sentiment", "mobile app", "app review", "app analysis", "professionals", "individuals", "require"] canonical_url: "https://marlvel.ai/intel-report/utilities/week-number" license: "CC-BY-NC 4.0" content_version: "v2" --- # Week Number App Audit ## TL;DR {#tldr} - **Category**: Utilities Β· Free - **Signal**: Rating 4.86 Β· Sentiment Excited > **TL;DR:** Week Number is a utilities app by Sindre Sorhus, rated 4.86/5 by 261 users, with Excited user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** β€” Independent analysis. US Market. No publisher influence. > **Key Insight:** Week Number has Excited user sentiment with a 4.86/5 rating from 261 reviews. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.86/5 (261 reviews) | | **User Mood** | Excited | | **Category** | Utilities | | **Developer** | Sindre Sorhus | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | High (0.85/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Sindre Sorhus - **Category:** Utilities - **Target Audience:** Professionals and individuals who require frequent reference to ISO or Gregorian week numbers for scheduling. - **Platforms:** iOS & Android - **Version Audited:** 1.3.0 - **Audit Date:** 2026-05-17 - **Signal Count:** 261 reviews analyzed - **Confidence:** High (0.85/1.0) - **App Store ID (iOS):** 6502579523 - **Bundle ID:** com.sindresorhus.Week-Number - **Google Play ID:** com.thedrycake.weeknumber - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-05-17 - **Short Description:** Displays the current week number (also as widget). ## Executive Snapshot **What it is:** Week Number is a utility app for macOS and Android that displays current ISO or Gregorian week numbers via widgets and menu bar items. **Why users hire it:** Users hire this app to eliminate the manual calculation of week numbers during scheduling, providing a quick reference that standard calendar apps often bury in settings. ## App DNA (Features & Intent) - **[Standard] Menu Bar Display:** Displays the current week number directly in the macOS menu bar - **[Standard] Home Screen Widget:** Displays week number on Android home screens with adjustable size, background color, and transparency ## Market Position {#market-position} The app maintains a 4.86 rating on Android with 261 reviews, signaling high satisfaction for its specific utility niche. Its lack of monetization or aggressive growth features keeps it as a secondary utility rather than a primary market competitor. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is distributed as a free utility without IAP or subscription gates. ## 🟒 User Sentiment (High Confidence: 261 reviews) {#user-sentiment} - **Overall Rating:** 4.86/5 - **Platform Split:** Android 4.9/5 (261 ratings) - **Overall Sentiment:** Excited ## SWOT Analysis {#swot} **Core Strengths:** - Minimalist design reduces cognitive load for quick date lookups - Cross-platform widget availability ensures consistent utility access **Critical Frictions:** - Zero revenue model limits reinvestment capacity - Lack of advanced scheduling features restricts user base **Growth Levers:** - Integration with third-party calendar APIs could transition the app into an active scheduling tool **Market Threats:** - OS-level native calendar updates frequently render single-purpose utilities obsolete ## Recent Changes (v2 β†’ v3) {#recent-changes} The intelligence report expanded from a basic utility profile to a strategic analysis, identifying the app's lack of monetization and advanced features as risks to its long-term viability. **Overall trend**: Stable **Compared at**: 2026-05-17 ### High-impact changes - **[Shifted] Strategic Positioning Pivot** (positioning) β€” The executive summary shifted from describing the app as a 'highly-rated utility' to a 'secondary tool' vulnerable to system-level integration by OS vendors. ### Medium-impact changes - **[Added] Formal SWOT Analysis** (swot) β€” Added a full SWOT profile identifying the zero-revenue model as a weakness and native OS calendar updates as a threat. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Week Number vs Widget Wizard β€” Head to Head - **[Widget Wizard](https://marlvel.ai/intel-report/utilities/widget-wizard)** by Ahmed El-Khuffash: This is the only direct competitor in the Utilities category focused specifically on widget-based information display. - **Moat strength:** Low β€” erodable in <12 months - **Key differences:** - Offers a specialized widget-first interface that mirrors the target app's core utility value proposition. - Maintains a singular focus on home screen utility, avoiding the bloat of full-featured calendar suites. ### Peers (What They Do Better) - **[Widgetsmith](https://marlvel.ai/intel-report/productivity/com-crossforward-widgetsmith)** by Cross Forward Consulting, LLC: A dominant productivity tool that includes week number display as a minor feature within a massive widget ecosystem. - Provides extensive aesthetic customization options that far exceed the target app's basic visual configuration settings. - Leverages a massive user base to drive network effects and high-frequency updates across the productivity category. - **[Calendar](https://marlvel.ai/intel-report/productivity/calendar)** by Apple: The default system utility that provides native week number visibility, acting as the primary barrier to entry. - Integrates directly into the iOS system architecture, providing zero-latency performance and native system-level widget support. - Eliminates the need for third-party installations by offering essential calendar data as a pre-installed utility. - **[Fantastical Calendar](https://marlvel.ai/intel-report/productivity/fantastical-calendar)** by Flexibits Inc.: A premium productivity suite that captures power users who require advanced scheduling features alongside basic date tracking. - Utilizes natural language processing for event creation, positioning itself as a high-utility tool for professional power users. - Offers a cross-platform synchronization engine that ensures consistent data availability across all Apple devices and platforms. - **[Calendar Β·](https://marlvel.ai/intel-report/productivity/calendar-1)** by BUCKET LIST LABS S.L.: An adjacent productivity tool that competes for the same screen real estate by offering a simplified calendar view. - Focuses on a minimalist design language that appeals to users seeking a distraction-free calendar experience. - Provides a streamlined alternative to complex calendar apps by prioritizing essential date-based information at a glance. ## App Momentum (Active) {#momentum} - Ships macOS 26 compatibility update. - Improved Android widget contrast. > **Cadence:** 5 total versions Β· 0 majors in last 6 months Β· 85 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Week Number is a market-leading utilities app that is completely free. With a 4.86/5 rating from 261 reviews, it delivers strong user satisfaction. > **Bottom Line:** Week Number succeeds as a minimalist utility, but its lack of advanced features limits its growth, so the PM should pivot toward calendar integration to increase user retention. **Best for:** Professionals and individuals who require frequent reference to ISO or Gregorian week numbers for scheduling. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [MEDIUM IMPACT] Integrate third-party calendar sync because users require active scheduling, not just passive viewing β†’ increase daily utility frequency. β€” *The app is currently a secondary utility; calendar integration would make it a primary productivity tool.* _(trade-off: deprioritize Deprioritize visual customization updates for the Android widget.)_ ### Feature Gaps vs Competitors - Natural language event creation (available in Fantastical Calendar but absent here) - Cross-platform synchronization engine (available in Fantastical Calendar but absent here) ### Outlook: Stable The market for single-purpose date utilities is consolidating as OS-level calendar widgets become more capable. Week Number remains stable due to its simplicity, but it must add active scheduling features to avoid being replaced by native system tools. - βšͺ Recent updates focused on macOS compatibility and widget contrast, indicating the app remains in a maintenance-focused utility lifecycle. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.86/5 | | Total Reviews | 261 | | Sentiment | Excited (85/100) | | Confidence | High | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 2 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Week Number** (this app) | 4.86/5 | Excited | Sindre Sorhus | | [Fantastical Calendar](https://marlvel.ai/intel-report/productivity/fantastical-calendar) | 4.2/5 | N/A | Flexibits Inc. | | [Calendar](https://marlvel.ai/intel-report/productivity/calendar) | 4.9/5 | Frustrated | Apple | | [Calendar Β·](https://marlvel.ai/intel-report/productivity/calendar-1) | 4.6/5 | N/A | BUCKET LIST LABS S.L. | | [Widget Wizard](https://marlvel.ai/intel-report/utilities/widget-wizard) | 4.2/5 | N/A | Ahmed El-Khuffash | | [Widgetsmith](https://marlvel.ai/intel-report/productivity/com-crossforward-widgetsmith) | 4.6/5 | Excited | Cross Forward Consulting, LLC | ## Company Profile - **Developer:** Sindre Sorhus - **Website:** [https://sindresorhus.com/week-number](https://sindresorhus.com/week-number) - **Social:** [Instagram](https://instagram.com/sindresorhus) Β· [X/Twitter](https://twitter.com/sindresorhus) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/week-number/id6502579523?mt=12&uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.thedrycake.weeknumber&hl=en&gl=us) - **Dev Site:** [Official Website](https://sindresorhus.com/week-number) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## Related Intel Reports - [*Fantastical Calendar*](https://marlvel.ai/intel-report/productivity/fantastical-calendar) (Flexibits Inc.) β€” 4.2/5 Rating | N/A Sentiment - [*Calendar*](https://marlvel.ai/intel-report/productivity/calendar) (Apple) β€” 4.9/5 Rating | Negative Sentiment - [*Calendar Β·*](https://marlvel.ai/intel-report/productivity/calendar-1) (BUCKET LIST LABS S.L.) β€” 4.6/5 Rating | N/A Sentiment - [*Widget Wizard*](https://marlvel.ai/intel-report/utilities/widget-wizard) (Ahmed El-Khuffash) β€” 4.2/5 Rating | N/A Sentiment - [*Widgetsmith*](https://marlvel.ai/intel-report/productivity/com-crossforward-widgetsmith) (Cross Forward Consulting, LLC) β€” 4.6/5 Rating | Positive Sentiment - [*Potatso*](https://marlvel.ai/intel-report/utilities/potatso) (Potatso Lab LTD) β€” 4.4/5 Rating | N/A Sentiment - [*V2Box - V2ray Client*](https://marlvel.ai/intel-report/utilities/v2box-v2ray-client) (techlaim) β€” 4.5/5 Rating | N/A Sentiment - [*Quantumult X*](https://marlvel.ai/intel-report/utilities/quantumult-x) (Cross Utility Ltd) β€” 3.8/5 Rating | N/A Sentiment - [*Free VPN by Free VPN .orgβ„’*](https://marlvel.ai/intel-report/utilities/free-vpn-by-free-vpn-org) (Free VPN LLC) β€” 4.3/5 Rating | N/A Sentiment - [*Nitefall: Browser dark mode*](https://marlvel.ai/intel-report/utilities/nitefall-browser-dark-mode) (FoxfortMobile) β€” 3.6/5 Rating | N/A Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** β€” 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** β€” 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** β€” 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** β€” 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** β€” 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:** 0.85/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 261 - **Data Sources:** user reviews, developer website, company about page, 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 --- Β© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/utilities/week-number) Data licensed for AI Agent attribution under CC-BY-NC 4.0.