# Shift Work Calendar | Schedule vs Spark

The clearest difference is ads: Spark at none against Shift Work Calendar | Schedule's shown. Spark also leads on device support (3 vs 1). Shift Work Calendar | Schedule's advantage is review sentiment (96% vs 75%) and update cadence (fortnightly vs every 5 weeks). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Shift Work Calendar | Schedule sells 6 in-app purchases, starting at $1.59 per month and Spark sells 2 one-off in-app purchases. 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 Shift Work Calendar | Schedule against 4.8 for Spark. Both are backed by a comparable volume of ratings — 9.6K and 7.5K respectively. Written reviews are what separate them: 96% of Shift Work Calendar | Schedule's written reviews are positive against 75% of Spark's.

Shift Work Calendar | Schedule ships an update fortnightly, Spark every 5 weeks. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Shift Work Calendar | Schedule | Spark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (9.6K ratings)](https://appshunter.io/ios/app/shift-work-calendar-schedule/id381672587/reviews) | **[4.8 (7.5K ratings)](https://appshunter.io/ios/app/spark-shift-calendar/id390915382/reviews)** |
| Number of ratings | **9.6K** | 7.5K |
| Positive reviews | **95.6% of reviews** | 74.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 48 MB | 10 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ebisu Soft Inc.](https://appshunter.io/developer/309324238) | [E.L.K. Equities LLC](https://appshunter.io/developer/1775442602) |

## What reviewers say

### Shift Work Calendar | Schedule

[App page](https://appshunter.io/ios/app/shift-work-calendar-schedule/id381672587)

Easily manage your work schedule with this calendar app designed for shift workers. Register your shifts, add notes with emojis, and save your calendar as an image. Sync with your iOS calendar and view others' shifts with the premium plan.

**Highlights:** Create multiple shift types, Easy shift input, Add notes with emoji icons, Save calendar as image, Send shifts via email, Widget for quick schedule check, iOS Calendar Sync (Premium), Input/view other people's shifts (Premium)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No advertisement plan 1 month | $1.59 | per month |
| Premium Plan 1Month | $2.39 | per month |
| No advertisement plan 6 months | $6.39 | per 6 months |
| Premium Plan 6 Months | $9.59 | per 6 months |
| No advertisement plan 1 year | $11.00 | per year |
| Premium Plan 1 Year | $16.90 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Customizable
- 💡 Helpful for shift workers
- 🚀 Convenient
- 👍 Organized

**What reviewers complain about**

- 🐛 Occasional glitches
- 💸 Expensive subscription
- 📢 Too many ads

**Reported bugs**

- Calendar dates not syncing correctly
- App freezing or crashing
- Issues with data migration

**Requested features**

- Recurring shift scheduling
- Ability to add multiple shifts per day
- More customization options
- Sync with other calendars
- Payroll integration


### Spark

[App page](https://appshunter.io/ios/app/spark-shift-calendar/id390915382)

This app simplifies shift work for professionals like first responders and healthcare workers. It offers full customization, secure cloud syncing, and streamlined shift trading. Plan your life and stay organized with instant visual cues and reliable support.

**Highlights:** Full shift customization, Secure cloud sync, Streamlined shift trades, Instant visual cues, Comprehensive shift coverage, User-friendly interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription Renewal | $0.99 | one-time |
| Initial Annual Subscription | $5.99 | one-time |

**What reviewers like**

- 🚀 Excellent calendar app
- 👍 Easy to use and set up
- 🔒 Secure and reliable
- 💡 Customizable and feature-rich
- 👍 Great for shift work and emergency services

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 💰 Subscription model and pricing issues
- 🔧 Needs more frequent updates
- 🔧 Compatibility issues with newer devices
- 🔧 Lack of certain features (e.g., widgets, dark mode)

**Reported bugs**

- Login and authentication problems
- Data loss and sync issues after updates
- Unreliable performance on some devices

**Requested features**

- Ability to sync with more calendar services
- More customization options
- Improved user interface and design
- Ability to view past schedules and events


## Frequently asked questions

### Is Shift Work Calendar | Schedule free?

Shift Work Calendar | Schedule is free to download, with in-app purchases available.

### Is Spark free?

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

### Which has better reviews, Shift Work Calendar | Schedule or Spark?

Spark is rated higher. Shift Work Calendar | Schedule averages 4.7 out of 5 from 9.6K ratings, while Spark averages 4.8 from 7.5K ratings.

### Do Shift Work Calendar | Schedule or Spark have ads?

Shift Work Calendar | Schedule shows ads; Spark does not.

### Which is updated more often, Shift Work Calendar | Schedule or Spark?

Shift Work Calendar | Schedule ships an update fortnightly, and Spark every 5 weeks. Most recently, Shift Work Calendar | Schedule was updated on October 31, 2026 and Spark on October 29, 2026.

---

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