# Countdown Go! vs big O'Clock

The clearest difference is price: Countdown Go! at Free against big O'Clock's $0.99. Countdown Go! also leads on in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 12 months). On ads and device support there is nothing between them.

Countdown Go! is free to download; big O'Clock costs $0.99 up front. big O'Clock sells 3 one-off in-app purchases. Countdown Go! asks for nothing beyond the download.

Countdown Go! ships an update every 3 weeks, big O'Clock every 12 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Countdown Go! | big O'Clock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[4.5 (11 ratings)](https://appshunter.io/ios/app/big-oclock/id1524090504/reviews)** |
| Number of ratings | — | **11** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Monetization | — | Paid |
| Size | 10 MB | 31 MB |
| Requires iOS | **8.3** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIFRED SOLUTIONS](https://appshunter.io/developer/592885771) | [john bogaert](https://appshunter.io/developer/1524090506) |

## What reviewers say

### Countdown Go!

[App page](https://appshunter.io/ios/app/countdown-go-target-day-countdown-made-easy/id1011718420)

**Features:** macOS Compatibility

**In-app purchases:** none


### big O'Clock

[App page](https://appshunter.io/ios/app/big-oclock/id1524090504)

A full-screen clock, timer, and stopwatch app featuring large, clear digits. It offers high-quality visuals, sounds, and vibrations, serving as a stylish nightstand or work clock.

**Highlights:** Full-screen display, Large, clear digits, Customizable sounds and vibrations, Timer functionality, Stopwatch functionality, Nightstand mode

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I Love Big O'Clock | $1.99 | one-time |
| I Deeply Love Big O'Clock | $3.99 | one-time |
| I Adore Big O'Clock | $6.99 | one-time |


## Frequently asked questions

### Is Countdown Go! free?

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

### Is big O'Clock free?

big O'Clock costs $0.99, and also offers in-app purchases.

### Do Countdown Go! or big O'Clock have ads?

Neither Countdown Go! nor big O'Clock shows ads.

### Which is updated more often, Countdown Go! or big O'Clock?

Countdown Go! ships an update every 3 weeks, and big O'Clock every 12 months. Most recently, Countdown Go! was updated on October 19, 2026 and big O'Clock on October 24, 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.*