# Calendars vs Shift Calendar / Schedule

The clearest difference is in-app purchases: Shift Calendar / Schedule at none against Calendars's 20. Shift Calendar / Schedule also leads on review sentiment (76% vs 55%) and iOS requirement (15.6 vs 18.2). Calendars's advantage is chart position (#115 vs unranked) and update cadence (every 11 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. Calendars sells 18 in-app purchases, starting at $3.99 per month. Shift Calendar / Schedule asks for nothing beyond the download.

Calendars ships an update every 11 days, Shift Calendar / Schedule every 3 weeks. Both last shipped on September 26, 2026.

## The numbers

| Metric | Calendars | Shift Calendar / Schedule |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (122K ratings)](https://appshunter.io/ios/app/calendars-schedule-planner/id608834326/reviews)** | — |
| Number of ratings | **122K** | — |
| Positive reviews | 55.4% of reviews | **76.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#115** | — |
| Size | 408 MB | 1 MB |
| Requires iOS | 18.2 | **15.6** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Readdle Technologies Limited](https://appshunter.io/developer/285035419) | [Lin Chih-YU](https://appshunter.io/developer/994771056) |

## What reviewers say

### Calendars

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

**Currently charting:** #115 Top Free · Productivity, #120 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


### Shift Calendar / Schedule

[App page](https://appshunter.io/ios/app/shift-calendar-schedule/id994771057)

Easily create and manage your work schedule with customizable shifts. Quickly set recurring shifts over multiple days and share your planner with friends via email or other apps.

**Highlights:** Customizable shifts, Easy schedule editing, Set shifts for multiple days, Share schedule via email/apps, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Customizable labels and colors
- 💡 Helpful for shift workers
- 🔒 No ads or in-app purchases

**What reviewers complain about**

- 🐛 Issues with saving notes and appointments
- 🔍 Limited features compared to other calendar apps
- 🔀 Difficulty with repeating or copying shift patterns
- 🔒 No backup or sync options

**Reported bugs**

- Shifts and notes not saving properly
- App crashing after recent updates
- Inability to restore data on new devices

**Requested features**

- Add holiday and overtime shift options
- Ability to input multiple shifts per day
- Sync with other calendars or cloud services
- Apple Watch compatibility


## Frequently asked questions

### Is Calendars free?

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

### Is Shift Calendar / Schedule free?

Shift Calendar / Schedule is free to download, with no in-app purchases.

### Do Calendars or Shift Calendar / Schedule have ads?

Neither Calendars nor Shift Calendar / Schedule shows ads.

### Which is updated more often, Calendars or Shift Calendar / Schedule?

Calendars ships an update every 11 days, and Shift Calendar / Schedule every 3 weeks. Most recently, Calendars was updated on September 26, 2026 and Shift Calendar / Schedule on September 26, 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.*