Countdown Go! vs big O'Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Countdown Go!
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Countdown Go! is the cleanest and most easy-to-use countdown app available. No unnecessary fancy stuff, account registration or time consuming settings - just set the target day and go! Perhaps you want to see the number of weeks or months instead of just days. Unlike other countdown apps you can freely select the time units displayed according to your preference - years, months, weeks and/or days. When the countdown is completed you will get a clean and simple notification. Main features: - Just set the target day and start countdown - Fast, clean and simple user interface - No account registration - No ads or In-App Purchase - Freely set the time units to be displayed (years, months, weeks, days) - Get notified when countdown is completed
big O'Clock
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.
- Full-screen display
- Large, clear digits
- Customizable sounds and vibrations
- Timer functionality
- Stopwatch functionality
- Nightstand mode
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Big O'Clock is a clock, timer or stop watch with big digits in full screen with high quality images, sounds and vibrations Beautiful night stand or working clock
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Countdown Go! | big O'Clock |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 4.5 (11 ratings) — better |
| Number of ratings | — | 11 — better |
| Update frequency | Every 3 weeks — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.3 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | MIFRED SOLUTIONS | john bogaert |
In-app purchases
Countdown Go!
No in-app purchases
big O'Clock
- I Love Big O'Clock$1.99
- I Deeply Love Big O'Clock$3.99
- I Adore Big O'Clock$6.99
