# OmniaChron vs Countdown

The clearest difference is update cadence: OmniaChron at every 3 weeks against Countdown's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OmniaChron sells 1 one-off in-app purchase and Countdown sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

OmniaChron ships an update every 3 weeks, Countdown every 2 months. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | OmniaChron | Countdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 23 MB | 75 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OmniaChron Inc.](https://appshunter.io/developer/1890955089) | [Gunawan Santoso](https://appshunter.io/developer/1843786072) |

## What reviewers say

### OmniaChron

[App page](https://appshunter.io/ios/app/omniachron-day-counter/id6761697385)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Forever | $9.99 | one-time |


### Countdown

[App page](https://appshunter.io/ios/app/countdown-days-until-event/id6762178578)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Countdown Pro | $6.99 | one-time |


## Frequently asked questions

### Is OmniaChron free?

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

### Is Countdown free?

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

### Do OmniaChron or Countdown have ads?

Neither OmniaChron nor Countdown shows ads.

### Which is updated more often, OmniaChron or Countdown?

OmniaChron ships an update every 3 weeks, and Countdown every 2 months. Most recently, OmniaChron was updated on November 5, 2026 and Countdown on November 7, 2026.

---

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