TimeLog vs Calendar ToDo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TimeLog
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Do you keep a diary? I've tried using various diary apps and paper diaries to see if I could stick with it. But... I couldn't keep it up. Even though I thought, “I should keep a diary! I have to keep one...” I just couldn't make it a habit. That's because... I had to think about what to write. Even if I tried to write at the end of the day, I'd end up thinking, “Huh... what did I even do today?” and using up mental energy just trying to remember. Then, actually writing the diary entry felt like too much trouble. But I still want to keep a record of my days! Well... I have good news for you. This app shows the exact time the moment you press the timestamp button, letting you instantly jot down whatever you want to record. It makes keeping track super easy. It's great for daily journaling, work notes, organizing your thoughts—anything really. You don't even have to press the timestamp button; you can just use it as a memo. And later, when you need to find something, adding tags makes searching a breeze. Plus! It posts to Google Calendar too. So when you wonder, “What did I do that day...?” Or “What was that meeting about last time...?” Just sync everything to Google Calendar, and finding it later is a breeze. ▼ Now supports various communication tools. ■ If you use LINE, Slack, Teams, Messenger, WhatsApp, etc., you can share necessary notes. ▼ Recommended for: ■ Those who want to reflect on their daily activities ■ Those looking to reassess how they use their time ■ Those seeking a simple note-taking app ■ Those wanting to start keeping a life log ▼ Main Features 【Timestamp】 Automatically inserts the current time with a single tap. No need for tedious time input. 【Daily Notes】 Freely record your daily goals and reflections. Separate from the timeline, you can capture your thoughts for the day. 【Tag Management】 Organize notes by adding tags. Easily search and sort later. 【Folder Organization】 Create folders to categorize notes. Freely classify them for work, personal use, etc. 【Calendar Integration】 Sync with Google Calendar. 【Sharing】 Easily share via LINE, email, PDF, etc. Simple sharing with teams or family! ▼ Basic Features Available in Free Version ・Create timestamped notes ・Save up to 10 files ・Create up to 3 tags ・Share as PDF/text ▼ Premium ・Unlimited files ・Unlimited tags ・Google Calendar integration ・Ad-free. ■ Privacy All memo data is stored locally on your device. No account registration required. Data is never sent externally unless you use Google Calendar integration. Simple design makes it easy to stick with. Record your everyday moments.
Calendar ToDo
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Turn your calendar events into a progress log you can review later. Calendar ToDo reads your calendar events and lets you record completion, progress, and reflection inside the app—without creating, editing, or deleting your calendar events. Because Calendar ToDo works with events shown in Apple’s Calendar app, you can use calendars from iCloud, Google Calendar, Outlook, and other accounts synced to your iPhone. Tap the Done button on the right to record completion immediately. Touch and hold an event to record progress. You can then select a reflection to save the reflection and completion as well. Progress is context for reflection and does not mark an event as Done by itself. Events saved as Done appear in the same completion records, graphs, and reports as before. On supported devices and languages, Apple Intelligence assists on-device event classification and Weekly Report insights. When Apple Intelligence is unavailable, completion, reflection, and category review and correction remain available. Key Features - On supported devices, Apple Intelligence assists event classification - View events from Apple Calendar, iCloud, Google Calendar, and Outlook without editing them - Check events and progress from the Monthly Calendar - See adjacent completed dates in multi-day events as a continuous completion band - Review the completion heatmap and today's reflection in the Overview section of Analytics - Browse today's events and mark them Done with one tap - Touch and hold an event to record progress and reflection - Review and correct each event's category from event details - Review schedule load, outcomes, progress, and reflections in the Report section of Analytics - Get end-of-event reminders with Done and 1-hour snooze actions - Notice schedule changes such as new events, time shifts, and missing routines - Sync completion and progress records across devices with iCloud Calendar ToDo is for people who already plan with a calendar and want a simple way to look back on what they completed, how far they progressed, and how the week went. Some features, including detailed reviews of past weeks, are available with Calendar ToDo Plus (monthly or yearly). Eligible subscribers may receive a 1-month free trial with the monthly plan. Official Website: https://calendartodo.app/en/ Terms of Use: https://calendartodo.app/en/terms/ Privacy Policy: https://calendartodo.app/en/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Calendar ToDo at weekly against TimeLog's every 3 weeks. Calendar ToDo also leads on iOS requirement (17.0 vs 26.1). On price, ads, 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. TimeLog sells 1 in-app purchase, starting at $1.99 per month and Calendar ToDo sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
TimeLog ships an update every 3 weeks, Calendar ToDo weekly. The most recent releases landed on September 13, 2026 and September 16, 2026 respectively.
| Parameter | TimeLog | Calendar ToDo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomohiko Yasui | Yugo Okugawa |
In-app purchases
TimeLog
- TimeLog Premium (Monthly)$1.991 Month
Calendar ToDo
- Calendar ToDo Plus Monthly1 Month trial$1.991 Month
- Calendar ToDo Plus Annual1 Year trial$14.991 Year








