Cal2Todo branch vs SiCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cal2Todo branch
This app transforms your calendar events into manageable tasks, helping you stay on top of appointments and avoid forgetting them. It offers a unique procrastination feature to defer tasks, an intuitive design for quick agenda viewing, and integration with your built-in iPhone calendar.
- Events as tasks
- Procrastination feature
- Intuitive agenda view
- Google Calendar integration
- 4-day view
- Countdown timer
- Customizable deferral options
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THINK-OUT-OF-THE-BOX Calendar app - PROCRASTINATION MADE EASY! -Your EVENTS now appear as your TASKS. -You will never forget your appointments using this app. -You can push tasks back later. -It has an Intuitive design allowing you to quickly look at the day's agenda. -You can use Google calendar as well, if your built-in calendar is synced with Google calendar. Who will benefit most from this app? -Users who want only one integrated app to control their schedules rather than two separate apps (scheduler and todos). -Users who usually procrastinate and sometimes forget to do things. -Users who want to finish everything before going to bed. Convenient 4-day view -Fully compatible with the built-in iPhone calendar. -You access your recent appointments by tapping the buttons at the bottom of the screen. -Can display a count-down timer for your next appointment or event. -Colorful screen - pick different colors for different calendars Basic usage -Home screen has today's agenda. -When you finish events, you check them off. Once checked, it goes into the background. -Items in red are overdue. Items in yellow are upcoming appointments (Less than an hour) -Most importantly, when you realize that you do not have time to do something, hit PROCRASTINATE. Don't worry, It will come back in a couple of days!! Items can be deffered from 15 mins to 2 weeks. These settings are fully customizable. - Today update the date as of today - Tomorrow update the date as of tomorrow - Next week update the date as the same day next week - Morning update the time for the next few mornings. - Afternoon update the time for the next few afternoons. - Evening update the time for the next few evenings. - 1hr later push back 1hr - 3hrs later push back 3hrs - 5hrs later push back 5hrs - and more! Miscellaneous -The button on the top-left of your screen will toggle items to be visible/invisible. -You can edit your items on this app and the changes will appear on the original built-in calendar. -You can delete items by swiping & tapping. -You can select the calendar(s) of your choice. Note: -This calendar only focuses on the next four days (yesterday, today, tomorrow, and the day after tomorrow) -The app retains the "Check ON/OFF" data by tagging the item with an ID. Some apps might change this ID. If that is the case, Cal2todo might not work properly. -This app only communicates with the database when it starts, therefore, the icon badge will not be updated until you open Cal2todo.
SiCal
This private calendar app utilizes a decentralized network for secure storage and management of your schedule. It allows for event creation, organization across multiple calendars, and import of existing files, all without requiring a traditional account. Your data is secured by a recovery phrase for easy restoration and control.
- Decentralized calendar storage
- Event creation and organization
- Multiple calendar management
- ICS file import
- Event reminders and alerts
- Restore access with recovery phrase
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SiCal is a private calendar app built on the decentralized Sia network. Create, organize, and manage your schedule without relying on a traditional central server or account-based calendar platform. With SiCal, you can create and edit events, manage multiple calendars, import calendar files like ICS, and stay on top of your schedule with event reminders and alerts. Your calendar data is tied to your recovery phrase, giving you a portable way to restore access and keep control of your information. Key features: -Decentralized calendar storage powered by Sia -Create, edit, and organize events across calendars -Import existing calendar files including ICS -Event reminders and alerts -Sync support to keep your calendar up to date -Restore access with your recovery phrase -No traditional account required -SiCal is designed for people who want a calendar that is practical, mobile-friendly, and more aligned with user ownership and privacy. This app was funded by a grant from the Sia Foundation.
Screenshots
Verdict
The clearest difference is rating: SiCal at 5.0 against Cal2Todo branch's 2.3. SiCal also leads on in-app purchases (none vs 10) and ads (none vs shown). Cal2Todo branch's advantage is ratings volume (3 vs 1). On price, device support and iOS requirement 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. Cal2Todo branch sells 10 one-off in-app purchases. SiCal asks for nothing beyond the download.
SiCal holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Cal2Todo branch ships an update every 3 weeks, SiCal every 9 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Cal2Todo branch | SiCal |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 72.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 41 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuko Shikiuchi | Mitchell May |
In-app purchases
Cal2Todo branch
- GRID (6 colors!)$0.99
- pucchon design skin!$0.99
- Minimal (3 colors!)$0.99
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- FULL VERSION$0.99
- Fabric ! (3 colors)$0.99
- Basic!$0.99
- swipe style!$0.99
- FLAT SKIN!$0.99
- sound pack 1$0.99
- support TextExpander$1.99
SiCal
No in-app purchases









