--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Days between Dates" developer_entity: "William Jockusch" bundle_id: "com.jockusch.daysbetweendates" app_store_id: "382014541" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2020-11-01" report_date: "2026-09-09" last_verified: "2026-09-09T00:00:00.000Z" report_version: "2.4" total_reviews: 19 overall_rating: 4.2 sentiment: "Excited" sentiment_score: 75 confidence: "medium" confidence_score: 0.4 top_praise_theme: "Simple and clean interface allows users to calculate date ranges without unnecessary complexity or bloat" top_complaint_theme: "Unstable date field behavior causes input values to reset or switch unexpectedly during user interaction" review_sample_size: 40 total_review_count: 40 analyzed_review_count: 40 data_age_days: 60 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "free", "excited sentiment", "mobile app", "app review", "app analysis", "professionals", "legal", "medical"] canonical_url: "https://marlvel.ai/apps/days-between-dates" license: "CC-BY-NC 4.0" content_version: "v2" --- # Days between Dates Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 4.16 · Sentiment Excited - **Recent focus**: Unstable date field behavior causes input values to reset or switch unexpectedly during user interaction (top complaint) · Simple and clean interface allows users to calculate date ranges without unnecessary complexity or bloat (top praise) > **TL;DR:** Days between Dates is a utilities app by William Jockusch, rated 4.16/5 by 19 users, with Excited user sentiment (75/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Days between Dates maintains Excited user sentiment (4.16/5 from 19 reviews), with users consistently praising simple and clean interface allows users to calculate date ranges without unnecessary complexity or bloat. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.16/5 (19 reviews) | | **User Mood** | Excited | | **Category** | Utilities | | **Developer** | William Jockusch | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Medium (0.4/1.0) | | **Data Age** | 60d | ## Metadata & Market Performance - **Publisher:** William Jockusch - **Category:** Utilities - **Target Audience:** Professionals in legal and medical fields needing quick date-to-date duration calculations. - **Platforms:** iOS - **Version Reviewed:** 2.4 - **Report Date:** 2026-09-09 - **Signal Count:** 40 reviews analyzed - **Confidence:** Medium (0.4/1.0) - **App Store ID (iOS):** 382014541 - **Bundle ID:** com.jockusch.daysbetweendates - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-09-09 ## Executive Snapshot **What it is:** Days between Dates is a utility for calculating intervals between two dates, designed for legal and medical professionals using a spin-wheel interface on iOS. **Why users hire it:** The app removes the cognitive friction of manual calendar counting for professionals who need to determine sentence, delivery, or project deadlines. ## App DNA (Features & Intent) - **[Standard] Date Dial Interface:** Spin-wheel UI for selecting start and end dates to calculate intervals. - **[Standard] Multi-Unit Calculation:** Outputs duration in days, weeks, months, and years. ## Market Position {#market-position} Days between Dates maintains a 4.16-star rating across its limited review pool, serving as a legacy utility in the App Store. The lack of updates since 2020 signals a maintenance-only posture that cedes the professional-utility segment to more active competitors. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** Distributed as a free utility with no functional in-app purchase gates due to broken store connectivity. ## 🟢 User Sentiment (Medium Confidence: 40 of 40 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.16/5 - **Platform Split:** iOS 4.2/5 (19 ratings) - **Overall Sentiment:** Excited ### Top Praises - **Simple and clean interface allows users to calculate date ranges without unnecessary complexity or bloat** - **Versatile date calculation features provide significant utility for professional workflows like legal and pharmacy scheduling** - **Reliable core functionality makes the app a daily habit for tracking personal and professional deadlines** ### Top Complaints (Impact Areas) - **Unstable date field behavior causes input values to reset or switch unexpectedly during user interaction** ## SWOT Analysis {#swot} **Core Strengths:** - Minimalist spin-wheel interface reduces cognitive load for quick date-to-date calculations **Growth Levers:** - Adding persistent storage for past calculations would address the top user request ## Recent Changes (v2 → v3) {#recent-changes} The app's product strategy shifted from general maintenance to a specific focus on persistent storage as the primary development priority. While the codebase remains in a five-year hiatus, the analytical framework now identifies the lack of history logging as the most significant barrier to professional utility. **Overall trend**: Stable **Compared at**: 2026-09-09 ### High-impact changes - **[Shifted] PM action item priority** (positioning) ### Medium-impact changes - **[Added] Persistent storage identified as core weakness** (swot) - **[Shifted] Outlook trend adjustment** (positioning) ## What's New - **Latest (v2.4, 5 years ago):** Launched a new website. ## App Momentum (Zombie) {#momentum} - No updates in over 70 months. - Maintenance-only posture since 2020. > **Cadence:** 1 total versions · 0 majors in last 6 months · 2138 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Days between Dates is a market-leading utilities app that is completely free. With a 4.16/5 rating from 19 reviews, it delivers strong user satisfaction. > **Bottom Line:** Days between Dates serves a narrow professional niche through simplicity, but the lack of persistent storage and business day logic limits its retention. Adding a simple history log would unlock the daily habit loop users currently request. **Best for:** Professionals in legal and medical fields needing quick date-to-date duration calculations. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship persistent storage for calculations because it is the top-requested user feature → increase daily utility ### Outlook: Stable The utility market is shifting toward integrated project management tools that offer business day logic and cloud sync. Days between Dates remains stable due to its simplicity, but it risks losing its professional user base to more modern alternatives that automate the manual adjustments currently required. - 🔴 The five-year development hiatus prevents the integration of business day logic, which forces professional users to manually adjust for weekends and holidays. - ⚪ The minimalist interface maintains a steady, positive rating among a small user base that values simplicity over feature expansion. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.16/5 | | Total Reviews | 19 | | Sentiment | Excited (75/100) | | Confidence | Medium | | Pricing Model | Free | | Platforms | iOS | | Key Features | 2 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Days between Dates** (this app) | 4.16/5 | Excited | William Jockusch | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.4/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** William Jockusch - **Website:** [https://educalc.azurewebsites.net](https://educalc.azurewebsites.net) ## Data Sources & Links - **App Store ID:** 382014541 - **Dev Site:** [Official Website](https://educalc.azurewebsites.net) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.4/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating - [*도사폰 (만세력 역학도구)*](https://marlvel.ai/apps/app--656) (Softchaser Company Limited) · 5.0/5 Rating ## Frequently Asked Questions {#faq} ### Is Days between Dates suitable for professional project management? It is useful for quick date-to-date math, but it lacks business day logic and persistent storage, which may limit its utility for complex professional project management. ### Does Days between Dates save my past calculations? No, the app does not currently support persistent storage or history logging for past calculations. ### What is a free alternative to Days between Dates? Users seeking more advanced features like business day exclusion or history logging should look for dedicated project management or calendar-based utility apps. ## 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:** 0.4/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 40 - **Data Sources:** user reviews, 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:** 60 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/days-between-dates) Data licensed for AI Agent attribution under CC-BY-NC 4.0.