# Chrono Countdown vs CalDown

The clearest difference is price: Chrono Countdown at Free against CalDown's $9.99. Chrono Countdown also leads on in-app purchases (none vs 1) and iOS requirement (16.4 vs 26.0). CalDown's advantage is rating (5.0 vs 4.0) and ads (none vs shown). On ratings volume and device support there is nothing between them.

Chrono Countdown is free to download; CalDown costs $9.99 up front. CalDown sells 1 one-off in-app purchase. Chrono Countdown asks for nothing beyond the download.

CalDown holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Chrono Countdown ships an update monthly, CalDown every 5 days. The most recent releases landed on August 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Chrono Countdown | CalDown |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/chrono-countdown-event-clock/id6743369111/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caldown/id6744269741/reviews)** |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 48 MB | 7 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Rob Cleozier](https://appshunter.io/developer/799668901) | [Valentin Haberling](https://appshunter.io/developer/1803412455) |

## What reviewers say

### Chrono Countdown

[App page](https://appshunter.io/ios/app/chrono-countdown-event-clock/id6743369111)

Track important life events with precise, real-time countdowns. Set reminders for birthdays, vacations, deadlines, and more with a clean, intuitive interface. Organize your upcoming moments and cherish past memories.

**Highlights:** Unlimited countdown timers, Real-time countdown clock, Smart event reminders, Customizable event details (notes, icons, names), Timeline view of upcoming events, Track past events and memories, Secure local data storage

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

**In-app purchases:** none


### CalDown

[App page](https://appshunter.io/ios/app/caldown/id6744269741)

This app transforms your calendar into a real-time timeline, showing your current and upcoming events with live countdowns. It offers customizable widgets for your home and lock screens, and a companion app for Apple Watch, all designed for clarity and focus.

**Highlights:** Real-time event timeline, Live countdowns and progress bars, Home and Lock Screen widgets, Apple Watch companion app, Event notes and checklists, Hide specific event occurrences

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock CalDown Pro | $3.99 | one-time |


## Frequently asked questions

### Is Chrono Countdown free?

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

### Is CalDown free?

CalDown costs $9.99, and also offers in-app purchases.

### Which has better reviews, Chrono Countdown or CalDown?

CalDown is rated higher. Chrono Countdown averages 4.0 out of 5 from 2 ratings, while CalDown averages 5.0 from 1 ratings.

### Do Chrono Countdown or CalDown have ads?

Chrono Countdown shows ads; CalDown does not.

### Which is updated more often, Chrono Countdown or CalDown?

Chrono Countdown ships an update monthly, and CalDown every 5 days. Most recently, Chrono Countdown was updated on August 27, 2026 and CalDown on September 23, 2026.

---

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