--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "倒数日 · Days Matter" developer_entity: "iDaily Corp." bundle_id: "com.chii.idays" app_store_id: "406170251" category: "Productivity" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-04-23" report_date: "2026-08-05" last_verified: "2026-08-05T00:00:00.000Z" report_version: "5.1" total_reviews: 7960 overall_rating: 4.8 sentiment: "Excited" sentiment_score: 85 confidence: "high" confidence_score: 0.9 top_praise_theme: "Long-term users value the consistent utility of tracking important life milestones and anniversaries" top_complaint_theme: "Recent updates caused critical widget failures and disappearance of existing home screen configurations" review_sample_size: 353 total_review_count: 353 analyzed_review_count: 62 data_age_days: 11 momentum_velocity: "maintenance" intelligence_version: 7 nemesis: "Loop Habit Tracker*" competitor_count: 12 tags: ["productivity", "freemium", "excited sentiment", "mobile app", "app review", "app analysis", "users", "seeking", "track"] canonical_url: "https://marlvel.ai/apps/days-matter" license: "CC-BY-NC 4.0" content_version: "v2" --- # 倒数日 · Days Matter Intelligence Report ## TL;DR {#tldr} - **Category**: Productivity · Freemium - **Signal**: Rating 4.84 · Sentiment Excited - **Recent focus**: Recent updates caused critical widget failures and disappearance of existing home screen configurations (top complaint) · Long-term users value the consistent utility of tracking important life milestones and anniversaries (top praise) > **TL;DR:** 倒数日 · Days Matter is a productivity app by iDaily Corp., rated 4.84/5 by 8K users, with Excited user sentiment (85/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** 倒数日 · Days Matter maintains Excited user sentiment (4.84/5 from 8K reviews), with users consistently praising long-term users value the consistent utility of tracking important life milestones and anniversaries. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.84/5 (8K reviews) | | **User Mood** | Excited | | **Category** | Productivity | | **Developer** | iDaily Corp. | | **Pricing** | Freemium | | **Platforms** | iOS | | **Confidence** | High (0.9/1.0) | | **Data Age** | 11d | ## Metadata & Market Performance - **Publisher:** iDaily Corp. - **Category:** Productivity - **Target Audience:** Users seeking to track personal milestones, anniversaries, and work deadlines with support for both Gregorian and Lunar calendars. - **Platforms:** iOS - **Version Reviewed:** 5.1 - **Report Date:** 2026-08-05 - **Signal Count:** 353 reviews analyzed - **Confidence:** High (0.9/1.0) - **App Store ID (iOS):** 406170251 - **Bundle ID:** com.chii.idays - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-08-05 ## Executive Snapshot **What it is:** 倒数日 · Days Matter is a productivity tool for tracking personal milestones and anniversaries across Gregorian and Lunar calendars on iOS. **Why users hire it:** It removes the cognitive friction of calculating elapsed time for life events, displacing manual calendar entries with automated, widget-based countdowns. ## App DNA (Features & Intent) - **[Differentiator] 10,000 Year Date Range:** Calculates countdowns or elapsed time from 1 AD to 9999 AD. - **[Differentiator] Biometric Security:** Locks app access via Face ID or Touch ID. * *User Intent:* Users prioritize data protection and trust in the platform. - **[Standard] iCity Cloud Sync:** Synchronizes event data across platforms. * *User Intent:* Users expect seamless access across multiple devices. ## Market Position {#market-position} 倒数日 · Days Matter holds a #8 Free position in the Chinese productivity category. The gap between its high rating and recent widget-related churn signals that the current maintenance cadence is failing to protect its established user base. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free base version, Premium subscription at CNY ¥3/month - **Analysis:** Freemium model anchored at a low-cost monthly subscription, gating privacy features like biometric locks. ## 🟢 User Sentiment (High Confidence: 62 of 353 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.84/5 - **Platform Split:** iOS 4.8/5 (8K ratings) - **Overall Sentiment:** Excited ### Top Praises - **Long-term users value the consistent utility of tracking important life milestones and anniversaries** - **Clean interface design and widget support provide a frictionless experience for daily date tracking** ### Top Complaints (Impact Areas) - **Recent updates caused critical widget failures and disappearance of existing home screen configurations** ## SWOT Analysis {#swot} **Core Strengths:** - 10,000-year date range enables complex historical milestone tracking - Deep integration with Chinese cultural calendar systems drives regional adoption - Biometric security locks provide a defensible privacy barrier **Growth Levers:** - Introduce habit milestones to bridge the gap between simple countdowns and streaks - Implement year-based display units for long-duration events ## Recent Changes (v6 → v7) {#recent-changes} The app's competitive stance has shifted from a focus on aesthetic event tracking to a defensive posture against habit-tracking rivals, driven by persistent widget regressions and user frustration with premium-tier promotional prompts. **Overall trend**: Mixed **Compared at**: 2026-08-05 ### High-impact changes - **[Added] Premium Member Experience Optimization** (pricing) - **[Declined] Increased Retention Risk** (outlook) ### Medium-impact changes - **[Shifted] Market Position Clarification** (positioning) - **[Added] Expanded SWOT Analysis** (swot) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### 倒数日 · Days Matter vs Loop Habit Tracker* - **[Loop Habit Tracker*](https://marlvel.ai/apps/loop-habit-tracker)** by Steve Veloudos: Both apps occupy the personal productivity space by helping users track time-sensitive goals and recurring events, competing for the same daily-active-user habit-building demographic. - **Key differences:** - Loop utilizes a scientific habit strength formula that provides deeper analytical insights than simple countdowns. - Open-source nature and data export capabilities offer superior user control compared to our closed ecosystem. - Flexible scheduling options allow for complex habit patterns that our static date-based system lacks. ### Contenders (Strong Challengers) - **[Atomic: Habit Tracker](https://marlvel.ai/apps/atomic-habit-tracker)** by Kanbon GmbH: Atomic competes by targeting the same productivity-conscious user base, focusing on minimalist habit visualization and privacy-first data handling. - Minimalist interface design prioritizes speed of entry over our feature-rich, multi-category event management system. - Strict data privacy commitment appeals to power users wary of our cloud-based iCity synchronization. - **[Streaks: Daily Habit Tracker](https://marlvel.ai/apps/streaks-daily-habit-tracker)** by SNEH NILESH: This app competes for the same productivity market share by offering task-management frameworks like the Eisenhower Matrix. - Integrated distraction blocker functionality provides active productivity support beyond simple passive date tracking. - Eisenhower Matrix implementation helps users prioritize tasks, a feature currently absent from our countdown-focused toolset. - **[Duse - Habit Tracker](https://marlvel.ai/apps/duse-habit-tracker)** by Andy Arevalo: Duse competes by offering a highly customizable interface that challenges our widget-centric user experience. - Provides highly flexible tracking options that allow users to define custom metrics beyond simple binary completion. - Offers advanced, insightful statistics that visualize progress across both home and lock screen widgets. - **[Habit Tracker - Evoday](https://marlvel.ai/apps/com-kevinquisquater-habits)** by Cosmic Taps SL: Evoday targets the same productivity-conscious user base by emphasizing visual progress and data portability. - Includes built-in habit journaling capabilities, allowing users to add context to their daily progress logs. - Prioritizes data portability, enabling users to export their tracking history for external analysis or backup. - **[Do Habits: Get It Done](https://marlvel.ai/apps/do-habits-get-it-done)** by Kodeon, Inc.: It competes for the same productivity-focused screen time by offering habit-tracking features that overlap with our event-management utility. - Integrates directly with Apple HealthKit to automate tracking for fitness-related habits and health goals. - Supports multi-frequency tracking, allowing users to define complex schedules beyond simple daily or weekly intervals. ### Peers (What They Do Better) - **[Many - Count Anything Tally](https://marlvel.ai/apps/many-count-anything-tally)** by ScicoDream Network Technology Ltd: Many serves as a direct alternative for users who need simple, flexible tallying tools for various life events. - Provides highly customizable tally counters that can be adapted for any tracking need, from habits to inventory. - Includes a quick backfill journal feature that allows users to retroactively log data points easily. - **[Quikr](https://marlvel.ai/apps/quikr)** by Paul Kasten: Quikr competes by offering unique, hardware-integrated productivity tools that differentiate from standard software-only trackers. - Supports physical NFC tag integration to trigger app actions, bridging the gap between physical and digital. - Includes an app-hiding focus mode that provides a unique utility for users seeking digital minimalism. - **[Timero - Pomodoro Study Timer](https://marlvel.ai/apps/ocule-timero)** by Ocule AS: Timero competes for the user's focus and time-management needs within the broader productivity ecosystem. - Focuses on Pomodoro-style time tracking to help users manage study sessions and deep work intervals. - Incorporates gamified rewards and challenges to incentivize consistent time-management behavior during study sessions. - **[Habitica: Gamified Taskmanager](https://marlvel.ai/apps/habitica-gamified-taskmanager-1)** by HabitRPG, Inc: Habitica occupies the same productivity category by using RPG-style gamification to drive user engagement. - Implements deep RPG gamification mechanics, turning mundane tasks into character-leveling experiences for higher retention. - Features social parties and guilds that create a strong community-driven network effect for users. ### New Kids on the Block (What's Innovative) - **[Flourish - Grow your Goals](https://marlvel.ai/apps/flourish-grow-your-goals)** by Hungryai LLC: Flourish enters the market by gamifying productivity, directly challenging our utility-focused approach with a 'living plant' engagement model. - Unique plant decay system creates high-stakes emotional engagement that our static countdowns cannot replicate. - **[DidIt Tracker – Daily Habits](https://marlvel.ai/apps/didit-tracker-daily-habits)** by Enrico Ferro: DidIt Tracker targets the same productivity segment by offering a blend of event logging and statistical trend analysis. - Detailed event logging provides granular historical data that exceeds our current summary-level tracking capabilities. ## What's New - **Latest (v5.1, 2 weeks ago):** Added 'Countdown Video' templates, 'All Notes' overview, 'Countdown Notes' for event details, and a 'Countdown Calendar' view. ## App Momentum (Maintenance) {#momentum} - Shipped Countdown Video templates. - Added Countdown Calendar view. - Ships maintenance-mode updates. > **Cadence:** 1 total versions · 1 majors in last 6 months · 20 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} 倒数日 · Days Matter is a market-leading productivity app that is free with in-app purchases. With a 4.84/5 rating from 8K reviews, it delivers strong user satisfaction. > **Bottom Line:** Restoring widget stability is the priority to defend the #8 chart position against habit-tracking rivals. If the current maintenance-mode cadence persists, the app risks losing its core user base to competitors offering more robust, data-driven engagement loops. **Best for:** Users seeking to track personal milestones, anniversaries, and work deadlines with support for both Gregorian and Lunar calendars. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Rebuild widget configuration logic because widget regressions are the top-cited churn driver → restore daily active habit ### Feature Gaps vs Competitors - Scientific habit-strength formula (available in Loop Habit Tracker but missing here) ### Outlook: Mixed The productivity market is consolidating around habit-tracking tools that provide actionable data, leaving 倒数日 · Days Matter's static countdown model exposed. Unless the team pivots from maintenance-mode to addressing the recent widget regressions, the current chart position will likely erode as users migrate to more robust alternatives. - 🔴 Widget regressions in the latest update erode the daily active habit, which compounds the rating drag already visible on the platform. - 🟢 The addition of video templates and calendar views shows active feature investment, which may help differentiate the app from static countdown rivals. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.84/5 | | Total Reviews | 8K | | Sentiment | Excited (85/100) | | Confidence | High | | Pricing Model | Freemium | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Mixed | | Outlook | Mixed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **倒数日 · Days Matter** (this app) | 4.84/5 | Excited | iDaily Corp. | | [Timero - Pomodoro Study Timer](https://marlvel.ai/apps/ocule-timero) | 4.7/5 | N/A | Ocule AS | | [Habit Tracker - Evoday](https://marlvel.ai/apps/com-kevinquisquater-habits) | 4.8/5 | N/A | Cosmic Taps SL | | [Habitica: Gamified Taskmanager](https://marlvel.ai/apps/habitica-gamified-taskmanager-1) | 4.0/5 | Mixed | HabitRPG, Inc | | [Do Habits: Get It Done](https://marlvel.ai/apps/do-habits-get-it-done) | 4.0/5 | n/a | Kodeon, Inc. | | [Flourish - Grow your Goals](https://marlvel.ai/apps/flourish-grow-your-goals) | 4.0/5 | N/A | Hungryai LLC | ## Company Profile - **Developer:** iDaily Corp. - **Website:** [https://daysmatter.com](https://daysmatter.com) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/%E5%80%92%E6%95%B0%E6%97%A5-days-matter/id406170251?uo=4) - **Dev Site:** [Official Website](https://daysmatter.com) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## Related Intel Reports - [*Timero - Pomodoro Study Timer*](https://marlvel.ai/apps/ocule-timero) (Ocule AS) · 4.7/5 Rating - [*Habit Tracker - Evoday*](https://marlvel.ai/apps/com-kevinquisquater-habits) (Cosmic Taps SL) · 4.8/5 Rating - [*Habitica: Gamified Taskmanager*](https://marlvel.ai/apps/habitica-gamified-taskmanager-1) (HabitRPG, Inc) · 4.0/5 Rating - [*Do Habits: Get It Done*](https://marlvel.ai/apps/do-habits-get-it-done) (Kodeon, Inc.) · 4.0/5 Rating - [*Flourish - Grow your Goals*](https://marlvel.ai/apps/flourish-grow-your-goals) (Hungryai LLC) · 4.0/5 Rating - [*Duse - Habit Tracker*](https://marlvel.ai/apps/duse-habit-tracker) (Andy Arevalo) · 4.6/5 Rating - [*DidIt Tracker – Daily Habits*](https://marlvel.ai/apps/didit-tracker-daily-habits) (Enrico Ferro) · N/A Rating - [*Atomic: Habit Tracker*](https://marlvel.ai/apps/atomic-habit-tracker) (Kanbon GmbH) · 4.9/5 Rating - [*Loop Habit Tracker**](https://marlvel.ai/apps/loop-habit-tracker) (Steve Veloudos) · 4.7/5 Rating | Excellent Sentiment - [*Streaks: Daily Habit Tracker*](https://marlvel.ai/apps/streaks-daily-habit-tracker) (SNEH NILESH) · N/A Rating ## Frequently Asked Questions {#faq} ### Is 倒数日 · Days Matter good for tracking long-term goals? Yes, it supports a 10,000-year date range, making it suitable for tracking long-term milestones. However, users seeking scientific habit-strength analytics may find rivals like Loop Habit Tracker more effective for daily goal consistency. ### How does 倒数日 · Days Matter compare to Loop Habit Tracker? 倒数日 · Days Matter focuses on emotional event tracking and date-based milestones, while Loop Habit Tracker provides scientific habit-strength formulas and deeper analytical insights for behavior change. ### Does the app have any known issues with widgets? Yes, recent reviews report that widgets vanished from the lock screen and home screen following the latest update, and some users are unable to create new ones. ### What is a good alternative for habit tracking? Users looking for habit-centric features should consider Loop Habit Tracker or Habit Tracker by Habit Mate, which offer progress heatmaps and statistical modeling absent in the current countdown-focused model. ## 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:** 0.9/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 353 - **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:** 11 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/days-matter) Data licensed for AI Agent attribution under CC-BY-NC 4.0.