# 123 Calendar vs ShiftMedix

The clearest difference is in-app purchases: ShiftMedix at none against 123 Calendar's 1. 123 Calendar's advantage is iOS requirement (8.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 123 Calendar sells 1 one-off in-app purchase. ShiftMedix asks for nothing beyond the download.

123 Calendar ships an update every 7 months, ShiftMedix every 8 months. The most recent releases landed on October 14, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 123 Calendar | ShiftMedix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (13 ratings)](https://appshunter.io/ios/app/123-calendar/id1141207598/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 30 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jormy Games](https://appshunter.io/developer/301040524) | [Aman Opneja](https://appshunter.io/developer/1799287240) |

## What reviewers say

### 123 Calendar

[App page](https://appshunter.io/ios/app/123-calendar/id1141207598)

This simple calendar app displays your entire week's events in a single view with three zoom levels. Easily manage events, assign custom colors, and create filters to highlight specific entries. It offers a streamlined way to organize your schedule without intrusive ads.

**Highlights:** Weekly event view, Three zoom levels, Custom event colors, Keyword-based filters, Event grouping and hiding, Simple event management

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $9.99 | one-time |


### ShiftMedix

[App page](https://appshunter.io/ios/app/shiftmedix/id6738400332)

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

**In-app purchases:** none


## Frequently asked questions

### Is 123 Calendar free?

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

### Is ShiftMedix free?

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

### Do 123 Calendar or ShiftMedix have ads?

Neither 123 Calendar nor ShiftMedix shows ads.

### Which is updated more often, 123 Calendar or ShiftMedix?

123 Calendar ships an update every 7 months, and ShiftMedix every 8 months. Most recently, 123 Calendar was updated on October 14, 2026 and ShiftMedix on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*