Calendars vs 1day Schedule
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendars
This app combines a calendar, task manager, daily planner, and habit tracker. It helps users plan their day, build habits, boost productivity, and stay organized with seamless syncing across all Apple devices. Features include event creation, to-do list management, natural language input, and integration with popular meeting platforms.
- Calendar, task, and habit management
- Daily, weekly, and monthly views
- Natural language event creation
- To-do list organization
- Cross-device syncing
- Meeting platform integration
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Calendars by Readdle is the all-in-one calendar, task manager, daily planner, and habit tracker — seamlessly working across all your Apple devices: Mac, iPhone, iPad, and Apple Watch. Plan your day, build better habits, boost productivity, and stay organized with powerful features and smooth sync between all your devices. What you can do with Calendars: • View and manage your calendar with daily, weekly, and monthly views • Create events, set reminders, and never miss important dates • Use the built-in agenda planner to focus on what matters most • Organize your to-do list and manage your tasks with ease • Quickly add events or to-do items using natural language • Build routines and track your habits to stay consistent • Take a guided productivity course to improve time management and focus • Sync across devices with Google Calendar, iCloud, and more • Customize your planner calendar with color coding and widgets • Join Zoom, Google Meet, or GoToMeeting directly from your calendar • Stay in control of your time, wherever you are Whether you're planning a busy workday, building new habits, or working on personal growth, Calendars brings everything together to help you own your time — across all your Apple devices. Privacy Policy: https://readdle.com/calendars/legal/privacy Terms of Service: https://readdle.com/calendars/legal/terms Have questions, comments, or issues? Don’t hesitate to reach out to us at http://readdle.com/contact
1day Schedule
Manage your daily schedule and to-do lists with this intuitive app. Visualize your day with an analog clock-style graph and utilize color-coding for better organization. Includes a vertical calendar with memo and stamp functions for enhanced productivity.
- Daily schedule management
- Hourly schedule input
- Color-coded schedules
- To-do list integration
- Analog clock schedule graph
- Vertical calendar with memos
- Customizable stamps
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It is a simple schedule app that allows you to manage your daily schedule. You can also install a check-type Todo list in the schedule assembled for each hour. In addition, the schedule is visualized with an analog clock-type graph! (Can be hidden when entering a schedule, etc.) [Main functions] - Manage the schedule on a daily basis - Hourly schedule input - Schedule can be color-coded - Schedule has normal display and time series display - A to-do list can be set in the schedule - Analog clock type schedule graph - Reminder - With vertical calendar [Vertical calendar] With a vertical calendar that goes well with smartphones! You can check the memo that can be entered for each day from the calendar. Also, you can put text on the button type stamp. Convenient for work schedule! You can also increase the stamps from the default one row to two. ------------ 1day schedule is recommended for those who like this! - I want to make an appointment in advance, such as the content of my work or study. - We would like to review the activities of the day and aim for a more fulfilling lifestyle. - I want to assemble a tight schedule because it is telework - I want to eliminate the wasted time that somehow passes Also, - I want to use only the Todo function as a to-do list - I want to use only the memo function that allows me to write a little on the calendar - I want to use only the stamp function of the calendar for work schedule Of course you can use it like this! We hope you will have a wonderful and highly conscious day with the 1day schedule.
Screenshots
Verdict
The clearest difference is ads: Calendars at none against 1day Schedule's shown. Calendars also leads on update cadence (weekly vs every 2 months) and ratings volume (122K vs 4). 1day Schedule's advantage is review sentiment (75% vs 56%) and iOS requirement (15.6 vs 18.2). On price, rating, in-app purchases and monetization model 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. Calendars sells 18 in-app purchases, starting at $3.99 per month and 1day Schedule sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Calendars against 4.8 for 1day Schedule. That said, the two scores are not equally well evidenced: Calendars has 122K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 56% of Calendars's written reviews are positive against 75% of 1day Schedule's.
Calendars ships an update weekly, 1day Schedule every 2 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | Calendars | 1day Schedule |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (122K ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 55.8% of reviews | 75.0% of reviews — better |
| Number of ratings | 122K — better | 4 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #116 — better | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 18.2 | 15.6 — better |
| Further details — not scored | ||
| Size | 413 MB | 51 MB |
| Age rating | +4 | 4+ |
| Developer | Readdle Technologies Limited | Shigeo Fukuda |
Customer experience
Calendars
1day Schedule
Bugs and requests
Calendars
Reported bugs
3 issues- Disappearing events and appointments
- Upgrade process causing data loss
- Freezing and crashing on certain devices
Requested features
5 requests- Recurring events for free users
- Customizable widgets and app icons
- Ability to archive/restore past events
- Improved Apple Watch integration
- Shared calendars and family management
1day Schedule
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calendars
- Calendars PRO 1 Month$3.991 Month
- Calendars by Readdle: Interesting Calendars1 Month trial$3.991 Year
- Calendars PRO 1 Month7 Days trial$3.991 Month
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- Calendars PRO 1 Year3 Months trial$19.991 Year
- Calendars PRO 1 Year7 Days trial2 variants$19.991 Year
- Calendars PRO 1 Year1 Year trial$19.991 Year
- Calendars PRO 1 Year14 Days trial$19.991 Year
- Calendars PRO 1 Year7 Days trial$21.991 Year
- Calendars PRO 1 Year7 Days trial$29.991 Year
- Calendars PRO LifetimeFree
- Invites & Attendees Upgrade$1.99
- Smart Input Upgrade$1.99
Show 6 moreShow fewer
- Full Upgrade$4.99
- Interesting Calendars$5.99
- My schedule planner, Organizer$6.99
- Full Pack$12.99
- Reminders & Calendars$19.99
- Recurring Events$31.99
1day Schedule
- Remove Ads2 variants$3.99
Questions
Is Calendars free?
Is 1day Schedule free?
Which has better reviews, Calendars or 1day Schedule?
Do Calendars or 1day Schedule have ads?
Which is updated more often, Calendars or 1day Schedule?
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