JIKAN vs Simple ToDo Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/1j3WhTs6xDQqjjrabhGbxQTaw0DEd_HROi8FFTo0wXcU/edit?usp=sharing
Simple ToDo Diary
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Simple ToDo Diary is an easy-to-use app for managing daily tasks and notes. You can write quick memos, manage your to-do list, and check off completed tasks. It also works as a light daily diary to record small moments. Designed to be simple, clean, and stress-free for everyday use.
Screenshots
Verdict
The clearest difference is ads: Simple ToDo Diary at none against JIKAN's shown. Simple ToDo Diary also leads on update cadence (daily vs monthly). JIKAN's advantage is iOS requirement (15.0 vs 18.6). 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. JIKAN sells 3 in-app purchases, starting at $4.99 per month and Simple ToDo Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
JIKAN ships an update monthly, Simple ToDo Diary daily. The most recent releases landed on September 15, 2026 and May 31, 2026 respectively.
| Parameter | JIKAN | Simple ToDo Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 66 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Yosuke Ogata | Kazuya Hashimoto |
In-app purchases
JIKAN
- 【Monthly】Premium$4.991 Month
- 【Annual】Premium$29.991 Year
- 【Life Time】Premium$29.99
Simple ToDo Diary
- 広告を非表示にする$1.99





