Calendars vs CMI PRET
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendars
This app combines calendar, task management, and habit tracking to boost productivity and organization. It offers seamless syncing across Apple devices and integrates with popular services like Google Calendar. Plan your day, manage tasks, and build routines with customizable views and features.
- Calendar and task management
- Habit tracking and routine building
- Cross-device syncing
- Natural language event creation
- Integration with Google Calendar and Zoom
- Customizable views and widgets
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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
CMI PRET
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CMI PRET helps participants in behavioral programs manage appointments, track progress, and earn rewards. Simple tools for appointment scheduling, journal writing, and reward tracking to support your program participation and behavioral goals.
Screenshots
Verdict
The clearest difference is in-app purchases: CMI PRET at none against Calendars's 10. CMI PRET also leads on iOS requirement (15.1 vs 18.2). Calendars's advantage is chart position (#109 vs unranked) and device support (4 vs 2). On price, update cadence and ads 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 10 in-app purchases, starting at $3.99 per month. CMI PRET asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. Both last shipped on November 9, 2026.
| Parameter | Calendars | CMI PRET |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (123K ratings) — better | — |
| Positive reviews | 56.0% of reviews | — |
| Number of ratings | 123K — better | — |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Best chart rank | #109 — better | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPod |
| Requires iOS | 18.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 413 MB | 54 MB |
| Age rating | 4+ | 17+ |
| Developer | Readdle Technologies Limited | Contingency Management Innovations, LLC. |
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
CMI PRET
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 Year7 Days trial$19.991 Year
- Calendars PRO 1 Year1 Year trial$19.991 Year
- Calendars PRO 1 Year7 Days trial$21.991 Year
- Smart Input Upgrade$1.99
- My schedule planner, Organizer$6.99
- Full Pack$12.99
Show 1 moreShow fewer
- Recurring Events$31.99
CMI PRET
No in-app purchases
Questions
Is Calendars free?
Is CMI PRET free?
Do Calendars or CMI PRET have ads?
Which is updated more often, Calendars or CMI PRET?
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