# Calzy vs Slate Educational Scheduling

The clearest difference is review sentiment: Calzy at 77% against Slate Educational Scheduling's 0%. Calzy also leads on rating (4.7 vs 2.7) and ratings volume (1.9K vs 3). Slate Educational Scheduling's advantage is price (Free vs $1.99) and in-app purchases (none vs 3). On update cadence, ads and device support there is nothing between them.

Slate Educational Scheduling is free to download; Calzy costs $1.99 up front. Calzy sells 3 one-off in-app purchases. Slate Educational Scheduling asks for nothing beyond the download.

Calzy holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: Calzy has 1.9K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 77% of Calzy's written reviews are positive against 0% of Slate Educational Scheduling's.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 29, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Calzy | Slate Educational Scheduling |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/calzy/id623690732/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/slate-educational-scheduling/id1573005377/reviews) |
| Number of ratings | **1.9K** | 3 |
| Positive reviews | **76.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Paid | **Free** |
| Best chart rank | **#61** | — |
| Size | 66 MB | 122 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Raja Vijayaraman](https://appshunter.io/developer/562575890) | [Penmac](https://appshunter.io/developer/1121004147) |

## What reviewers say

### Calzy

[App page](https://appshunter.io/ios/app/calzy/id623690732)

**Currently charting:** #61 Top Paid · Productivity (US App Store)

This app offers a modern and intuitive way to perform everyday calculations. It features a unique Memory Area for reusing values, bookmarking for saved calculations, and leverages the latest iOS technologies for a seamless experience. Designed with privacy in mind, it's suitable for students and professionals alike.

**Highlights:** Memory Area for reusing values, Calculation bookmarking with titles, Basic and advanced calculation modes, Privacy mode with Face ID, Live Activity and Haptic Touch support, Customizable keypad layout, Dark and Light modes

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $3.99 | one-time |
| Huge Tip | $9.99 | one-time |


### Slate Educational Scheduling

[App page](https://appshunter.io/ios/app/slate-educational-scheduling/id1573005377)

This app streamlines the process of managing classroom absences and substitute teacher assignments for school districts. It provides real-time staffing information and detailed reports.

**Highlights:** Enter absences quickly, Accept substitute assignments, Real-time staffing information, Robust reporting, Streamlined communication

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

**In-app purchases:** none


## Frequently asked questions

### Is Calzy free?

Calzy costs $1.99, and also offers in-app purchases.

### Is Slate Educational Scheduling free?

Slate Educational Scheduling is free to download, with no in-app purchases.

### Which has better reviews, Calzy or Slate Educational Scheduling?

Calzy is rated higher. Calzy averages 4.7 out of 5 from 1.9K ratings, while Slate Educational Scheduling averages 2.7 from 3 ratings.

### Do Calzy or Slate Educational Scheduling have ads?

Neither Calzy nor Slate Educational Scheduling shows ads.

### Which is updated more often, Calzy or Slate Educational Scheduling?

Calzy ships an update every 2 days, and Slate Educational Scheduling every 2 days. Most recently, Calzy was updated on September 29, 2026 and Slate Educational Scheduling on September 18, 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.*