# Calendars vs ToDo Notification Reminders

The clearest difference is rating: Calendars at 4.7 against ToDo Notification Reminders's 3.4. Calendars also leads on ads (none vs shown) and review sentiment (56% vs 21%). ToDo Notification Reminders's advantage is iOS requirement (16.0 vs 18.2). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Calendars sells 18 in-app purchases, starting at $3.99 per month and ToDo Notification Reminders sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Calendars holds the better App Store score, 4.7 against 3.4. That said, the two scores are not equally well evidenced: Calendars has 122K ratings behind it against 498, so its average is the more settled of the two. Written reviews point the same way: 56% of Calendars's written reviews are positive against 21% of ToDo Notification Reminders's.

Calendars ships an update weekly, ToDo Notification Reminders fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calendars | ToDo Notification Reminders |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (122K ratings)](https://appshunter.io/ios/app/calendars-schedule-planner/id608834326/reviews)** | [3.4 (498 ratings)](https://appshunter.io/ios/app/todo-notification-reminders/id1476485491/reviews) |
| Number of ratings | **122K** | 498 |
| Positive reviews | **55.8% of reviews** | 21.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#120** | — |
| Size | 412 MB | 77 MB |
| Requires iOS | 18.2 | **16.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Readdle Technologies Limited](https://appshunter.io/developer/285035419) | [Nota Systems, LLC](https://appshunter.io/developer/1651903160) |

## What reviewers say

### Calendars

[App page](https://appshunter.io/ios/app/calendars-schedule-planner/id608834326)

**Currently charting:** #120 Top Free · Productivity, #141 Top Grossing · Productivity (US App Store)

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.

**Highlights:** Calendar, task, and habit management, Daily, weekly, and monthly views, Natural language event creation, To-do list organization, Cross-device syncing, Meeting platform integration

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendars PRO 1 Month | $3.99 | per month |
| Calendars by Readdle: Interesting Calendars | $3.99 | per year |
| Calendars PRO 1 Month | $3.99 | per month |
| Calendars PRO 1 Year | $19.99 | per year |
| Calendars PRO 1 Year | $19.99 | per year |
| Calendars PRO 1 Year | $19.99 | per year |
| Calendars PRO 1 Year | $19.99 | per year |
| Calendars PRO 1 Year | $21.99 | per year |
| Calendars PRO 1 Year | $29.99 | per year |
| Calendars PRO Lifetime | Free | one-time |
| Invites & Attendees Upgrade | $1.99 | one-time |
| Smart Input Upgrade | $1.99 | one-time |
| Full Upgrade | $4.99 | one-time |
| Interesting Calendars | $5.99 | one-time |
| My schedule planner, Organizer | $6.99 | one-time |
| Full Pack | $12.99 | one-time |
| Reminders & Calendars | $19.99 | one-time |
| Recurring Events | $31.99 | one-time |

**What reviewers like**

- 🌟 Excellent calendar app
- 👍 Easy to use and organize
- 🎨 Helpful color-coding
- 📆 Seamless integration with other calendars
- 🗓️ Detailed monthly/weekly views

**What reviewers complain about**

- 🐛 Occasional glitches and data loss
- 💰 Concerns over subscription model
- 🕰️ Cumbersome date/time selection process
- 🔍 Limited location search functionality
- 🔄 Sync issues between devices

**Reported bugs**

- Disappearing events and appointments
- Upgrade process causing data loss
- Freezing and crashing on certain devices

**Requested features**

- 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


### ToDo Notification Reminders

[App page](https://appshunter.io/ios/app/todo-notification-reminders/id1476485491)

This app helps you stay organized by setting reminders for tasks, deadlines, and recurring events. Avoid missed appointments and late fees with timely, quiet notifications. Manage your schedule effectively and free up your mind.

**Highlights:** Set recurring reminders, Create deadline alerts, Schedule event notifications, Get quiet notifications, Organize tasks with colorful markers, Plan events in advance

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-Day Free Trial | $1.99 | per month |
| 1 Month | $1.99 | per month |
| 7-day Free Trial | $14.99 | per year |
| 12 Months | $14.99 | per year |
| Remove ads | $1.99 | one-time |
| Unlock app discount | $2.99 | one-time |
| Unlock app discount ad free | $3.99 | one-time |
| Unlock app | $14.99 | one-time |
| Lifetime Promotion | $34.99 | one-time |
| Lifetime | $34.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Clean and minimalist design
- 🚀 Fast and responsive
- 💡 Useful for simple reminders

**What reviewers complain about**

- 🐛 Glitchy and unreliable
- 💰 Overly expensive for basic features
- 🔍 Limited customization options
- 🔁 Difficulty managing/deleting reminders
- 🔒 Subscription-based model with ads

**Reported bugs**

- Reminders not triggering at the correct time
- Date/time settings resetting unexpectedly
- Inability to edit or delete existing reminders
- Sync issues between devices

**Requested features**

- Ability to set recurring reminders on specific days
- Option to customize notification sounds and settings
- Improved sync and cross-device support
- Better reminder management tools


## Frequently asked questions

### Is Calendars free?

Calendars is free to download, with in-app purchases available.

### Is ToDo Notification Reminders free?

ToDo Notification Reminders is free to download, with in-app purchases available.

### Which has better reviews, Calendars or ToDo Notification Reminders?

Calendars is rated higher. Calendars averages 4.7 out of 5 from 122K ratings, while ToDo Notification Reminders averages 3.4 from 498 ratings.

### Do Calendars or ToDo Notification Reminders have ads?

ToDo Notification Reminders shows ads; Calendars does not.

### Which is updated more often, Calendars or ToDo Notification Reminders?

Calendars ships an update weekly, and ToDo Notification Reminders fortnightly. Most recently, Calendars was updated on October 26, 2026 and ToDo Notification Reminders on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*