# Shift Scheduler vs Calendars

The clearest difference is in-app purchases: Shift Scheduler at none against Calendars's 20. Shift Scheduler also leads on iOS requirement (15.0 vs 18.2). Calendars's advantage is update cadence (every 11 days vs every 2 months) and ratings volume (122K vs 7). On price, rating, review sentiment 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 Scheduler asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Shift Scheduler against 4.7 for Calendars. That said, the two scores are not equally well evidenced: Calendars has 122K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 60% of Shift Scheduler's written reviews are positive against 55% of Calendars's.

Shift Scheduler ships an update every 2 months, Calendars every 11 days. The most recent releases landed on June 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Shift Scheduler | Calendars |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (7 ratings)](https://appshunter.io/ios/app/shift-scheduler/id482061308/reviews) | [4.7 (122K ratings)](https://appshunter.io/ios/app/calendars-schedule-planner/id608834326/reviews) |
| Number of ratings | 7 | **122K** |
| Positive reviews | **60.0% of reviews** | 55.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#117** |
| Size | 17 MB | 408 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [洁靖 张](https://appshunter.io/developer/482061691) | [Readdle Technologies Limited](https://appshunter.io/developer/285035419) |

## What reviewers say

### Shift Scheduler

[App page](https://appshunter.io/ios/app/shift-scheduler/id482061308)

Manage your work schedule with this app. It offers flexible shift arrangement, holiday tracking, and customizable calendar views with icons and colors. Record clock-in/out times and set reminders for your shifts.

**Highlights:** Flexible shift arrangement, Holiday tracking (US, UK, Canada, etc.), Customizable calendar with 40+ icons and unlimited colors, Clock-in/out time recording, Shift reminders, Enable/disable shifts for calendar view

**Features:** macOS Compatibility

**In-app purchases:** none


### Calendars

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

**Currently charting:** #117 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


## Frequently asked questions

### Is Shift Scheduler free?

Shift Scheduler is free to download, with no in-app purchases.

### Is Calendars free?

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

### Which has better reviews, Shift Scheduler or Calendars?

Shift Scheduler and Calendars are both rated 4.7 out of 5 on the App Store, from 7 and 122K ratings respectively.

### Do Shift Scheduler or Calendars have ads?

Neither Shift Scheduler nor Calendars shows ads.

### Which is updated more often, Shift Scheduler or Calendars?

Shift Scheduler ships an update every 2 months, and Calendars every 11 days. Most recently, Shift Scheduler was updated on June 5, 2026 and Calendars 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.*