# Spark vs Shift Day Work Calendar

The clearest difference is ads: Spark at none against Shift Day Work Calendar's shown. Spark also leads on iOS requirement (15.6 vs 17.3). Shift Day Work Calendar's advantage is update cadence (every 4 days vs every 5 weeks) and review sentiment (86% vs 75%). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Spark sells 2 one-off in-app purchases and Shift Day Work Calendar sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Spark against 4.7 for Shift Day Work Calendar. Both are backed by a comparable volume of ratings — 7.5K and 14K respectively. Written reviews are what separate them: 75% of Spark's written reviews are positive against 86% of Shift Day Work Calendar's.

Spark ships an update every 5 weeks, Shift Day Work Calendar every 4 days. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Spark | Shift Day Work Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (7.5K ratings)](https://appshunter.io/ios/app/spark-shift-calendar/id390915382/reviews)** | [4.7 (14K ratings)](https://appshunter.io/ios/app/shift-day-work-calendar-spoke/id1016565262/reviews) |
| Number of ratings | 7.5K | **14K** |
| Positive reviews | 74.8% of reviews | **85.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 10 MB | 243 MB |
| Requires iOS | **15.6** | 17.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [E.L.K. Equities LLC](https://appshunter.io/developer/1775442602) | [PIXO Incorporation](https://appshunter.io/developer/541568418) |

## What reviewers say

### 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


### Shift Day Work Calendar

[App page](https://appshunter.io/ios/app/shift-day-work-calendar-spoke/id1016565262)

Easily track your work shifts with a clear, intuitive calendar. Assign colors and names to shifts, add reminders, and view your entire month at a glance. Share your schedule and sync across devices.

**Highlights:** Color-coded shift tracking, Intuitive rota interface, Shift widget, Schedule sharing, iCloud sync, Push notifications

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription Trial | $4.99 | per month |
| Month-Subscription | $4.99 | per month |
| Monthly Subscription Trial | $4.99 | per month |
| Yearly Subscription Intro Offer | $19.99 | per year |
| Yearly Subscription Special Offer | $24.99 | per year |
| Yearly Pro Subscription Trial | $34.99 | per year |
| Year-Subscription | $34.99 | per year |
| Yearly Pro Subscription | $34.99 | per year |
| Pro Upgrade Now | $2.99 | one-time |
| Pro Upgrade | $79.99 | one-time |

**What reviewers like**

- 🚀 Simple and efficient
- 👍 Easy to use and navigate
- 🎨 Helpful color coding
- 🗓️ Convenient for shift scheduling
- ⏰ Shift reminders

**What reviewers complain about**

- 🔒 Paid upgrade required for full functionality
- 🔀 Issues with syncing across devices
- 🗓️ Limited view of calendar
- 📝 Memos not prominently displayed

**Reported bugs**

- App crashing or closing unexpectedly
- Shifts not displaying correctly
- Issues with paid version not working after device change

**Requested features**

- Ability to add more than 2 shifts per day
- Integration with other calendar apps
- Customizable color options
- Recurring memo/event feature
- Week view option


## Frequently asked questions

### Is Spark free?

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

### Is Shift Day Work Calendar free?

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

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

Spark is rated higher. Spark averages 4.8 out of 5 from 7.5K ratings, while Shift Day Work Calendar averages 4.7 from 14K ratings.

### Do Spark or Shift Day Work Calendar have ads?

Shift Day Work Calendar shows ads; Spark does not.

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

Spark ships an update every 5 weeks, and Shift Day Work Calendar every 4 days. Most recently, Spark was updated on October 20, 2026 and Shift Day Work Calendar on October 21, 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.*