# Shift Day Work Calendar vs Date & Time Interval

The clearest difference is in-app purchases: Date & Time Interval at none against Shift Day Work Calendar's 14. Date & Time Interval also leads on iOS requirement (12.0 vs 17.3). Shift Day Work Calendar's advantage is update cadence (every 4 days vs every 4 weeks) and ratings volume (14K vs 115). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Shift Day Work Calendar sells 10 in-app purchases, starting at $4.99 per month. Date & Time Interval asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Shift Day Work Calendar against 4.7 for Date & Time Interval. That said, the two scores are not equally well evidenced: Shift Day Work Calendar has 14K ratings behind it against 115, so its average is the more settled of the two. Written reviews are what separate them: 86% of Shift Day Work Calendar's written reviews are positive against 82% of Date & Time Interval's.

Shift Day Work Calendar ships an update every 4 days, Date & Time Interval every 4 weeks. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Shift Day Work Calendar | Date & Time Interval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (14K ratings)](https://appshunter.io/ios/app/shift-day-work-calendar-spoke/id1016565262/reviews) | [4.7 (115 ratings)](https://appshunter.io/ios/app/date-and-time-interval/id1231298346/reviews) |
| Number of ratings | **14K** | 115 |
| Positive reviews | **86.0% of reviews** | 81.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 4 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 240 MB | 15 MB |
| Requires iOS | 17.3 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [PIXO Incorporation](https://appshunter.io/developer/541568418) | [SACHIN SABU](https://appshunter.io/developer/1172690974) |

## What reviewers say

### 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


### Date & Time Interval

[App page](https://appshunter.io/ios/app/date-and-time-interval/id1231298346)

Calculate time intervals, age, and perform date arithmetic with ease. This tool helps you add or subtract years, months, and days, convert time zones, and count exact hours and days between dates.

**Highlights:** Calculate interval between two dates, Detailed age calculator, Add/subtract years, months, days, Convert time zones, Hour and minute calculations (HH:MM format), Working week calculator (include/exclude weekends)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shift Day Work Calendar free?

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

### Is Date & Time Interval free?

Date & Time Interval is free to download, with no in-app purchases.

### Which has better reviews, Shift Day Work Calendar or Date & Time Interval?

Shift Day Work Calendar and Date & Time Interval are both rated 4.7 out of 5 on the App Store, from 14K and 115 ratings respectively.

### Do Shift Day Work Calendar or Date & Time Interval have ads?

Both Shift Day Work Calendar and Date & Time Interval show ads.

### Which is updated more often, Shift Day Work Calendar or Date & Time Interval?

Shift Day Work Calendar ships an update every 4 days, and Date & Time Interval every 4 weeks. Most recently, Shift Day Work Calendar was updated on September 23, 2026 and Date & Time Interval on September 12, 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.*