# Shift Calendar vs TIER 3

The clearest difference is in-app purchases: TIER 3 at none against Shift Calendar's 4. TIER 3 also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 months). Shift Calendar's advantage is iOS requirement (11.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Shift Calendar sells 4 one-off in-app purchases. TIER 3 asks for nothing beyond the download.

Shift Calendar ships an update every 3 months, TIER 3 every 4 days. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Shift Calendar | TIER 3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (144 ratings)](https://appshunter.io/ios/app/shift-calendar-schedule/id1338193231/reviews)** | — |
| Number of ratings | **144** | — |
| Positive reviews | 51.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 38 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [章健 杨](https://appshunter.io/developer/1566849627) | [Serik Berdalinov](https://appshunter.io/developer/1748579780) |

## What reviewers say

### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-schedule/id1338193231)

Easily manage your work schedule with this app designed for shift workers. Customize your shifts, generate schedules automatically, and add important notes to your calendar.

**Highlights:** Customizable shift work, Automatic cycle scheduling, Calendar notes, Clear shift display

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar Notes | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Pro Version | $0.99 | one-time |
| Add User | $0.99 | one-time |


### TIER 3

[App page](https://appshunter.io/ios/app/tier-3/id6759251861)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shift Calendar free?

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

### Is TIER 3 free?

TIER 3 is free to download, with no in-app purchases.

### Do Shift Calendar or TIER 3 have ads?

Shift Calendar shows ads; TIER 3 does not.

### Which is updated more often, Shift Calendar or TIER 3?

Shift Calendar ships an update every 3 months, and TIER 3 every 4 days. Most recently, Shift Calendar was updated on September 25, 2026 and TIER 3 on September 10, 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.*