Anniversary Calendar vs JIKAN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Anniversary Calendar
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機能はとてもシンプル - 記念日カウントアップ機能 - 記念日から好きな日数前に通知 この二つだけです。 記念日を忘れないだけでなく、 誕生日から10000日の記念日 付き合い始めた日から1000日の記念日といった 数えにくい記念日も確認可能です。
JIKAN
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JIKAN is an app that counts down the days to your future events and counts up the time elapsed since your past milestones. Easily check at a glance how many days remain until your most important anniversaries or the day you achieve your goals. The name "JIKAN"—the Japanese word for "Time"—was chosen to reflect our mission: to help you cherish your life and make every passing moment count. Key Features: Event Countdown: Displays the time remaining until your next big event in days, hours, minutes, and seconds. Customization: Personalize your experience by setting your favorite photos as event backgrounds. Past Event Tracker (Count-up): See exactly how much time has passed since a completed event or a special memory. Life Timer: By simply entering your birthday, visualize how much time remains in your journey (calculated up to age 80). Smart Notifications: Receive regular push notifications to stay updated and inspired as your events approach. Widget: View your event at a glance Whether you’re looking for a new Countdown Buddy to track life’s milestones or a reliable Days Since counter for your achievements, JIKAN is the perfect alternative to apps. More than just a simple Countdown Timer, JIKAN allows you to visualize your life and goals in a meaningful way. With our sleek Countdown function, Experience the best Countdown and Countdown app designed to help you cherish every second. EULA: https://docs.google.com/document/d/1RBaAwpSUdgqp9WJeQG_KD3xbsNLa0MTkrOoJC1jCdBM/edit?usp=sharing
Screenshots
Verdict
The clearest difference is in-app purchases: Anniversary Calendar at none against JIKAN's 3. Anniversary Calendar also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). JIKAN's advantage is update cadence (every 5 weeks vs every 8 months). On price 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. JIKAN sells 3 in-app purchases, starting at $4.99 per month. Anniversary Calendar asks for nothing beyond the download.
Anniversary Calendar ships an update every 8 months, JIKAN every 5 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Anniversary Calendar | JIKAN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 5 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 51 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Naoki Nakamichi | Yosuke Ogata |
In-app purchases
Anniversary Calendar
No in-app purchases
JIKAN
- 【Monthly】Premium$4.991 Month
- 【Annual】Premium$29.991 Year
- 【Life Time】Premium$29.99









