# SimpleCal vs School DelayZz

The clearest difference is ads: School DelayZz at none against SimpleCal's shown. School DelayZz also leads on rating (5.0 vs 4.7) and iOS requirement (12.4 vs 15.0). SimpleCal's advantage is ratings volume (18K vs 14) and update cadence (fortnightly vs every 2 months). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. SimpleCal sells 2 in-app purchases, starting at $0.99 per month and School DelayZz sells 1 in-app purchase, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

School DelayZz holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SimpleCal has 18K ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 85% of SimpleCal's written reviews are positive against 83% of School DelayZz's, so the app with the better star average is not the one people write more warmly about.

SimpleCal ships an update fortnightly, School DelayZz every 2 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SimpleCal | School DelayZz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (18K ratings)](https://appshunter.io/ios/app/simplecal-simple-calendar/id1227579630/reviews) | **[5.0 (14 ratings)](https://appshunter.io/ios/app/school-delayzz/id1637926598/reviews)** |
| Number of ratings | **18K** | 14 |
| Positive reviews | **84.6% of reviews** | 83.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 23 MB | 30 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LandLake LLC](https://appshunter.io/developer/1865321426) | [Kohi LLC](https://appshunter.io/developer/1637926600) |

## What reviewers say

### SimpleCal

[App page](https://appshunter.io/ios/app/simplecal-simple-calendar/id1227579630)

This calendar app offers a streamlined way to manage your schedule with features like event syncing, customizable interfaces, and helpful reminders. It provides a clear overview of your day and integrates with popular calendar services for easy data backup and access across devices.

**Highlights:** Syncs with iCloud and Google Calendar, Customizable interface with color themes, Event reminders with repeat options, Widget for quick event overview, Weather forecast integration, Dark mode support, Data backup to external servers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads removal | $0.99 | per month |
| Remove Ads | $49.99 | one-time |

**What reviewers like**

- 😍 Awesome!!
- 👍 Easy to use
- 👍 Well-organized
- 🎨 Helpful color-coding
- ⏰ Useful reminders

**What reviewers complain about**

- 🐛 Deleted events/data loss
- 🔒 Requires full access to Apple Calendar
- 🗓️ Can't edit read-only events
- 🎨 Limited color options
- 🗓️ Can't add events on days with existing events

**Reported bugs**

- Calendar stuck on one date
- Home screen widget not working
- Issues with setting recurring events

**Requested features**

- Add more color options
- Ability to gray out past days
- Custom reminder times
- Separate work and personal calendars
- Printable calendar view


### School DelayZz

[App page](https://appshunter.io/ios/app/school-delayzz/id1637926598)

This alarm app automatically adjusts your wake-up time for school delays or closures due to weather. Customize your extra sleep preferences for different delay lengths and enjoy more rest on snow days.

**Highlights:** Automatic wake-up time adjustment, Customizable extra sleep preferences, Silent notification for delays, Supports school delays, closures, and remote learning, School selection from a list

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $1.99 | per year |


## Frequently asked questions

### Is SimpleCal free?

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

### Is School DelayZz free?

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

### Which has better reviews, SimpleCal or School DelayZz?

School DelayZz is rated higher. SimpleCal averages 4.7 out of 5 from 18K ratings, while School DelayZz averages 5.0 from 14 ratings.

### Do SimpleCal or School DelayZz have ads?

SimpleCal shows ads; School DelayZz does not.

### Which is updated more often, SimpleCal or School DelayZz?

SimpleCal ships an update fortnightly, and School DelayZz every 2 months. Most recently, SimpleCal was updated on November 11, 2026 and School DelayZz on November 3, 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.*