Sparkling Day vs Catendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sparkling Day
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Sparkling is an app designed to help you effortlessly record the important days in your life. Whether it’s a special anniversary, a family member’s birthday, a countdown event, or a holiday arrangement, lets you document and be reminded with ease. Beyond that, Sparkling integrates a suite of practical features, giving you instant access to traditional almanac guidance, Five Elements information, and holiday schedules. Core Features • Days Worth Remembering Easily record and receive reminders for every meaningful moment in your life—anniversaries, birthdays, festivals, countdowns, and more. Each day supports rich, detailed notes including text, voice, video, and photos, making your memories vivid and complete. • People Management Manage the important people in your life, whether close or unfamiliar. Record essential information, flexible custom metadata (such as gender, preferences, religious beliefs, etc.), and rich life events (birthdays, education history, work history, key conversations, and more). People are tightly connected with days, notes, and tasks, giving you a structured approach to managing relationships. • Flash Notes Quickly capture sparks of inspiration and everyday thoughts. Supports mixed content—text, images, videos, and audio—so you can record anything, anytime. The intelligent AI assistant automatically analyzes your flash notes, identifies mentioned people and dates, and links or creates them for you, making your records smarter and more efficient. • To-Dos Manage tasks and plans with clarity. Supports three types of tasks: normal tasks, recurring activities, and habit tracking. Plan your daily activities and build healthy routines. To-dos can be linked with people, days, and notes, helping you stay organized and in control. • Almanac Understand the daily Auspicious vs. Inauspicious (宜忌), follow the Five Elements changes, and explore traditional cultural insights such as compass directions and Yin-Yang trigrams. Integrated lunar calendar support helps you stay aware of traditional solar terms and key cultural dates. • Holiday Calendar Check your annual holiday balance at a glance and get leave-planning suggestions to help you make the most of your time off. Clearly see all holiday arrangements and plan work–life balance with confidence. • Smart Calendar View both solar and lunar calendars with important information displayed directly on the calendar—your days, people-related events, holidays, and more. Understand your schedule at a glance and never miss a key moment. • AI Smart Assistant Powered by advanced AI, the assistant analyzes your notes, recognizes people, dates, and tasks within them, and automatically links or creates related content. This reduces manual organization and makes your entire recording experience more intelligent. ----- Sparkling - Let every important day shine.
Catendar
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Catendar is a shift calendar for nurses and anyone on rotating shifts, with a simple budget diary and a cat to keep you company. Open it and your rota is right there. Fill your month in seconds Pick a shift and tap the days. Tap a day again to clear it. For a regular rotation, Fill shift pattern repeats your cycle across the weeks in one go. Your month at a glance Day, Evening, Night and Off each have their own color, with this month's count next to each one, so you always know how many nights are coming. Tap the month title to jump to any month or year. Your day under the calendar The selected day's appointments, notes and spending sit right below the calendar. Tap a line to see everything. Budget diary Log income and spending with one tap on a category like Food, Cafe or Transport. Totals add up by month, and the monthly report puts your shifts, income, spending and top categories on one card you can share. Reminders Set a reminder time for each shift type or appointment. Notifications come straight from your phone, never through a server. Share your rota Send this month's shift table as an image. Your appointments and notes stay private. iPhone and iPad On iPad, the calendar and your day sit side by side. Your cat, your data Pick one of eight cats and earn a new title each month. No account needed. Everything stays on your device, and you can export a backup anytime. Nine languages: English, Korean, Japanese, Simplified and Traditional Chinese, Spanish, French, German and Italian.
Screenshots
Verdict
The clearest difference is ads: Sparkling Day at none against Catendar's shown. Sparkling Day also leads on iOS requirement (15.6 vs 17.0). Catendar's advantage is update cadence (every 5 days vs fortnightly). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sparkling Day ships an update fortnightly, Catendar every 5 days. The most recent releases landed on October 28, 2026 and November 6, 2026 respectively.
| Parameter | Sparkling Day | Catendar |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 171 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | 展威 李 | Bumjoon Lee |
In-app purchases
Sparkling Day
No in-app purchases
Catendar
No in-app purchases









