# CalCs vs Keya Authenticator

The clearest difference is price: Keya Authenticator at Free against CalCs's $0.49. CalCs's advantage is update cadence (every 5 days vs every 3 weeks) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Keya Authenticator is free to download; CalCs costs $0.49 up front. CalCs sells 3 one-off in-app purchases and Keya Authenticator sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CalCs ships an update every 5 days, Keya Authenticator every 3 weeks. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CalCs | Keya Authenticator |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/calcs-calendar-complications/id6499201223/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 67.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 3 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Akihiro Usui](https://appshunter.io/developer/1387267485) | [Eldar SHAIDULLIN](https://appshunter.io/developer/1894639063) |

## What reviewers say

### CalCs

[App page](https://appshunter.io/ios/app/calcs-calendar-complications/id6499201223)

Enhance your Apple Watch experience with customizable calendar complications. Display dates, events, reminders, and monthly calendars directly on your watch face. Manage your schedule at a glance without needing to open the main app.

**Highlights:** Date display complications, Event and reminder display, Monthly calendar view, Customizable week start day, Holiday support, Minimal settings

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Snack-Sized Tip | $0.49 | one-time |
| Coffee-Sized Tip | $1.99 | one-time |
| Lunch-Sized Tip | $3.99 | one-time |


### Keya Authenticator

[App page](https://appshunter.io/ios/app/keya-authenticator/id6764358712)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $2.99 | one-time |
| Pizza | $9.99 | one-time |
| Family Dinner | $29.99 | one-time |


## Frequently asked questions

### Is CalCs free?

CalCs costs $0.49, and also offers in-app purchases.

### Is Keya Authenticator free?

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

### Do CalCs or Keya Authenticator have ads?

Neither CalCs nor Keya Authenticator shows ads.

### Which is updated more often, CalCs or Keya Authenticator?

CalCs ships an update every 5 days, and Keya Authenticator every 3 weeks. Most recently, CalCs was updated on October 16, 2026 and Keya Authenticator on October 8, 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.*