--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "US Calendar 2026" developer_entity: "Jatisari Inovasi Studio" bundle_id: "com.agus.us.calendar" app_store_id: "1108185179" category: "Productivity" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-05-13" report_date: "2026-05-22" last_verified: "2026-05-22T08:24:58.947Z" report_version: "1.9" total_reviews: 1520748 overall_rating: 4.85 sentiment: "Excited" sentiment_score: 85 confidence: "high" confidence_score: 0.7 top_praise_theme: "Straightforward interface design" top_complaint_theme: "Ad-related interruptions during navigation" top_request_theme: "External calendar synchronization" review_sample_size: 5445 data_age_days: 40 momentum_velocity: "maintenance" intelligence_version: 4 nemesis: "CalenGoo - Calendar and Tasks" competitor_count: 11 tags: ["productivity", "free", "excited sentiment", "mobile app", "app review", "app analysis", "us-based", "users", "seeking"] canonical_url: "https://marlvel.ai/intel-report/productivity/us-calendar-2026" license: "CC-BY-NC 4.0" content_version: "v2" --- # US Calendar 2026 App Audit ## TL;DR {#tldr} - **Category**: Productivity · Free - **Signal**: Rating 4.85 · Sentiment Excited - **Recent focus**: Ad-related interruptions during navigation (top complaint) · Straightforward interface design (top praise) · External calendar synchronization (top request) > **TL;DR:** US Calendar 2026 is a productivity app by Jatisari Inovasi Studio, rated 4.85/5 by 1.5M users, with Excited user sentiment (85/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** US Calendar 2026 maintains Excited user sentiment (4.85/5 from 1.5M reviews), with users consistently praising straightforward interface design. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.85/5 (1.5M reviews) | | **User Mood** | Excited | | **Category** | Productivity | | **Developer** | Jatisari Inovasi Studio | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | High (0.7/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Jatisari Inovasi Studio - **Category:** Productivity - **Target Audience:** US-based users seeking a simple, personalized tool for tracking holidays and recurring personal events. - **Platforms:** iOS & Android - **Version Audited:** 1.9 - **Audit Date:** 2026-05-22 - **Signal Count:** 50 reviews analyzed - **Confidence:** High (0.7/1.0) - **App Store ID (iOS):** 1108185179 - **Bundle ID:** com.agus.us.calendar - **Google Play ID:** com.agus.us.calendar - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-05-22 - **Short Description:** US Calendar with Public Holidays 2024 - 2030 ## Executive Snapshot **What it is:** US Calendar 2026 is a productivity tool for US-based users to track holidays and manage recurring personal events on iOS and Android. **Why users hire it:** Users hire this app to offload the cognitive burden of tracking annual dates and personal milestones without the complexity of enterprise-grade calendar suites. ## App DNA (Features & Intent) - **[Standard] Custom Event Personalization:** Users can add events or notes with custom icons and colors to the calendar grid * *User Intent:* Users value self-expression and personalized experiences. - **[Differentiator] Photo Integration:** Allows users to personalize calendar backgrounds using their own photos * *User Intent:* Users value self-expression and personalized experiences. - **[Standard] Recurring Event Reminders:** Set annual recurring events to trigger notifications * *User Intent:* Users want timely prompts to stay engaged without missing updates. ## Market Position {#market-position} US Calendar 2026 maintains a 4.66 rating on Android, serving as a niche utility for holiday tracking in the productivity category. ## Monetization Strategy - **Model:** Free - **Tiers:** Free with ad support - **Analysis:** Ad-supported free model relies on high-volume user engagement to monetize via display inventory. ## 🟢 User Sentiment (High Confidence: 1.5M reviews) {#user-sentiment} - **Overall Rating:** 4.85/5 - **Platform Split:** iOS 4.9/5 (1.5M ratings) | Android 4.7/5 (5.4K ratings) - **Overall Sentiment:** Excited ### Top Praises - **Straightforward interface design** ### Top Complaints (Impact Areas) - **Ad-related interruptions during navigation** ### Top Requests (What Users Want) - **External calendar synchronization** ## SWOT Analysis {#swot} **Core Strengths:** - Simple UI reduces cognitive load for casual users - Photo-based personalization increases user-generated content attachment **Critical Frictions:** - Ad-supported model creates friction in navigation - Lacks advanced synchronization with system-level calendar engines **Growth Levers:** - Integration of wearable-specific notifications - B2B partnerships for holiday-based event planning **Market Threats:** - Microsoft 365 Copilot's AI-driven scheduling - Shift-specific apps capturing the hourly-worker demographic ## Recent Changes (v3 → v4) {#recent-changes} The app is experiencing increased user friction due to ad-monetization while facing new competitive pressure from AI-integrated productivity suites. **Overall trend**: Mixed **Compared at**: 2026-05-22 ### High-impact changes - **[Declined] Rating and Sentiment Shift** (sentiment) — Rating: 4.75 → 4.66; user complaints have consolidated around ad-related interruptions during navigation. - **[Shifted] Market Outlook** (positioning) — Positioning shifted from a casual reference tool to a defensive maintenance-mode posture facing AI-driven productivity competition. ### Medium-impact changes - **[Shifted] Threat Landscape** (swot) — Threats updated to include AI-driven scheduling (Microsoft 365 Copilot) and shift-specific apps, replacing EU data-minimization concerns. - **[Added] Feature Gap Expansion** (features) — Added 'Task-in-event mapping' to the list of missing features compared to CalenGoo. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### US Calendar 2026 vs CalenGoo - Calendar and Tasks — Head to Head - **[CalenGoo - Calendar and Tasks](https://marlvel.ai/intel-report/productivity/com-calengoo-android)** by Gunia UG (haftungsbeschränkt): CalenGoo is a direct functional rival that targets the same productivity-focused user base by offering advanced task management and deep calendar synchronization. - **Key differences:** - Offers a sophisticated direct sync engine that bypasses standard system calendar limitations for faster updates - Integrates task management directly into the calendar view, providing a unified workflow for busy professionals - Supports complex floating events and task-in-event mapping that the target app currently lacks - **Where US Calendar 2026 wins:** - ✅ Simpler, more accessible UI design tailored for users who find complex calendar apps overwhelming - ✅ Focused feature set on US-specific holiday tracking reduces cognitive load for casual users - **Where CalenGoo - Calendar and Tasks wins:** - ❌ Superior power-user features like task-in-event integration and advanced synchronization options - ❌ Massive historical review volume establishes greater trust and social proof in the app store - **Verdict:** The target app should focus on simplifying the onboarding experience to capture casual users, while avoiding a feature-parity war with CalenGoo's complex engine. ### Contenders (Strong Challengers) - **[Appoint Agenda](https://marlvel.ai/intel-report/business/appoint-agenda)** by Appoint BVBA: Appoint Agenda targets the business-oriented user who needs to bridge the gap between calendar management and client appointments. - Focuses on online appointment management, bridging the gap between personal scheduling and client-facing business needs - Includes automated appointment follow-up features that help users maintain professional relationships after meetings - **[Solid Calendar](https://marlvel.ai/intel-report/productivity/solid-calendar)** by Solid Apps S.R.L.: Solid Calendar competes by offering a more modern, natural-language-driven interface for managing daily schedules. - Utilizes natural language input to speed up event creation, significantly reducing time spent on manual entry - Includes a dedicated rotating schedule manager that simplifies planning for non-traditional work weeks - **[Calendar for Work Shift](https://marlvel.ai/intel-report/utilities/calendar-for-work-shift)** by Biographics Consultoria e Design LTDA: This app targets the specific niche of shift-based workers who require specialized visualization tools for their work schedules. - Specializes in shift visualization and workload analytics, catering to a specific professional demographic - Includes automated shift notifications that provide value beyond standard calendar event reminders - **[Teamup Calendar](https://marlvel.ai/intel-report/business/teamup-calendar)** by Teamup Solutions AG: Teamup competes for the same productivity-seeking audience but pivots toward collaborative team scheduling and granular access control. - Provides granular access permissions for shared calendars, which is essential for team-based productivity workflows - Features multi-view visualization tools that allow users to manage complex schedules across multiple team members ### Peers (What They Do Better) - **[Mainsail](https://marlvel.ai/intel-report/business/mainsail)** by Beghou Consulting: Mainsail operates in the business productivity space, focusing on data-driven decision intelligence for commercial operations. - Focuses on commercial data management and compliance controls rather than simple personal time tracking - Offers highly configurable modules that allow businesses to tailor the app to specific operational workflows - **[Planning-Poker](https://marlvel.ai/intel-report/productivity/planning-poker)** by Mobile Software AG: It shares the productivity category by facilitating team coordination, though it focuses on agile estimation rather than scheduling. - Facilitates collaborative scoring for agile teams, a niche productivity task distinct from standard calendar management - Offers a specialized digital card set that streamlines the estimation process for software development teams - **[JobNimbus: All-In-One Roof App](https://marlvel.ai/intel-report/business/jobnimbus-all-in-one-roof-app)** by JobNimbus: This app occupies the same business productivity space by embedding calendar functionality into a vertical-specific CRM. - Combines calendar management with industry-specific tools like integrated measurements and lead tracking for contractors - Provides a comprehensive business management platform that makes standalone calendar apps redundant for its users - **[Microsoft 365 Copilot](https://marlvel.ai/intel-report/productivity/com-microsoft-officemobile)** by Microsoft Corporation: While a broader productivity suite, its AI-driven scheduling capabilities directly threaten standalone calendar apps. - Leverages AI chat assistants to automate scheduling tasks through conversational prompts rather than manual entry - Deeply integrated into the broader Microsoft ecosystem, creating a massive data flywheel for enterprise users ### New Kids on the Block (What's Innovative) - **[Shift Calendar: Work Planner](https://marlvel.ai/intel-report/productivity/shift-calendar-work-planner)** by Brite Technologies: A new productivity tool specifically designed to automate shift scheduling and earnings tracking for hourly workers. - Automates pattern scheduling and earnings tracking, providing immediate financial insights for shift-based employees - **[Chorus AI](https://marlvel.ai/intel-report/business/chorus-ai)** by Happy Hearth, Inc.: A new entrant using AI-powered memory to manage professional interactions, potentially replacing traditional calendar logging. - Uses AI-powered memory to track huddles and interactions, moving beyond static calendar event logging ## What's New - **Latest (v1.9, 5 months ago):** General bug fixes and performance enhancements. - **Last Major (v9.0.4, 1 weeks ago):** Updated Calendar with 2026-2027 public holidays and general performance improvements. ## App Momentum (Maintenance) {#momentum} - Ships maintenance updates for stability. - Last major update May 2026. > **Cadence:** 3 total versions · 0 majors in last 6 months · 9 days since last update · 76 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} US Calendar 2026 is a market-leading productivity app that is completely free. With a 4.85/5 rating from 1.5M reviews, it delivers strong user satisfaction. > **Bottom Line:** US Calendar 2026 retains users through simplicity, but the ad-heavy monetization model threatens long-term loyalty, so the PM should prioritize a premium ad-free tier to stabilize the user base. **Best for:** US-based users seeking a simple, personalized tool for tracking holidays and recurring personal events. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] [HIGH IMPACT] Ship one-time premium unlock to remove ads because ad-driven navigation friction is the top complaint → reduce churn — *Ad-related interruptions are the primary negative sentiment theme in user reviews.* _(trade-off: deprioritize Pause the photo-background feature expansion — ad-revenue stability is the immediate priority.)_ - [ ] [INVEST] [MEDIUM IMPACT] Audit system calendar sync logic because lack of sync is the top feature request → increase retention — *User requests consistently highlight the need for better integration with existing calendar services.* _(trade-off: deprioritize Same-quarter capacity available — no major lever displaced.)_ ### Feature Gaps vs Competitors - Direct sync engine (available in CalenGoo but missing here) - Task-in-event mapping (available in CalenGoo but missing here) ### Outlook: Stable The productivity market is consolidating around AI-integrated tools, leaving standalone holiday trackers like US Calendar 2026 in a maintenance-mode posture. The app remains stable for its core audience, but the lack of feature evolution will likely lead to gradual user attrition as competitors offer better synchronization. - 🔴 Ad-related complaints in the latest version erode the daily active habit, which compounds the rating drag already visible on Android. - ⚪ Recent updates focused on stability, no feature expansion, signaling a maintenance-mode posture that leaves the app exposed to feature-rich rivals. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.85/5 | | Total Reviews | 1.5M | | Sentiment | Excited (85/100) | | Confidence | High | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **US Calendar 2026** (this app) | 4.85/5 | Excited | Jatisari Inovasi Studio | | [CalenGoo - Calendar and Tasks](https://marlvel.ai/intel-report/productivity/com-calengoo-android) | 4.9/5 | Mixed | Gunia UG (haftungsbeschränkt) | | [Microsoft 365 Copilot](https://marlvel.ai/intel-report/productivity/com-microsoft-officemobile) | 4.7/5 | Upset | Microsoft Corporation | | [Shift Calendar: Work Planner](https://marlvel.ai/intel-report/productivity/shift-calendar-work-planner) | N/A/5 | N/A | Brite Technologies | | [Solid Calendar](https://marlvel.ai/intel-report/productivity/solid-calendar) | 4.9/5 | N/A | Solid Apps S.R.L. | | [Calendar for Work Shift](https://marlvel.ai/intel-report/utilities/calendar-for-work-shift) | N/A/5 | N/A | Biographics Consultoria e Design LTDA | ## Company Profile - **Developer:** Jatisari Inovasi Studio - **Website:** [https://agusharyanto.net](https://agusharyanto.net) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/calendar/id1108185179?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.agus.us.calendar&hl=en&gl=us) - **Dev Site:** [Official Website](https://agusharyanto.net) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*CalenGoo - Calendar and Tasks*](https://marlvel.ai/intel-report/productivity/com-calengoo-android) (Gunia UG (haftungsbeschränkt)) — 4.9/5 Rating | Mixed Sentiment - [*Microsoft 365 Copilot*](https://marlvel.ai/intel-report/productivity/com-microsoft-officemobile) (Microsoft Corporation) — 4.7/5 Rating | Terrible Sentiment - [*Shift Calendar: Work Planner*](https://marlvel.ai/intel-report/productivity/shift-calendar-work-planner) (Brite Technologies) — N/A Rating | N/A Sentiment - [*Solid Calendar*](https://marlvel.ai/intel-report/productivity/solid-calendar) (Solid Apps S.R.L.) — 4.9/5 Rating | N/A Sentiment - [*Calendar for Work Shift*](https://marlvel.ai/intel-report/utilities/calendar-for-work-shift) (Biographics Consultoria e Design LTDA) — N/A Rating | N/A Sentiment - [*JobNimbus: All-In-One Roof App*](https://marlvel.ai/intel-report/business/jobnimbus-all-in-one-roof-app) (JobNimbus) — 4.8/5 Rating | Positive Sentiment - [*Teamup Calendar*](https://marlvel.ai/intel-report/business/teamup-calendar) (Teamup Solutions AG) — 4.8/5 Rating | Mixed Sentiment - [*Mainsail*](https://marlvel.ai/intel-report/business/mainsail) (Beghou Consulting) — 5.0/5 Rating | N/A Sentiment - [*Planning-Poker*](https://marlvel.ai/intel-report/productivity/planning-poker) (Mobile Software AG) — N/A Rating | N/A Sentiment - [*Chorus AI*](https://marlvel.ai/intel-report/business/chorus-ai) (Happy Hearth, Inc.) — N/A Rating | N/A Sentiment ## 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 and evidence quoting. 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:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/productivity/us-calendar-2026) Data licensed for AI Agent attribution under CC-BY-NC 4.0.