Clicka! vs O
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Clicka!
This is a minimalist game where a number on the screen increments by one with each tap. It's designed as a simple time-waster with no complex mechanics or objectives.
- Number incrementing on click
- Minimalist design
- Time-wasting gameplay
- Simple interface
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"The most boring game ever". The number on the screen goes up by one each time you click it. "The best way to waste time".
O
Navigate a spinning circle through challenging obstacles in this minimal action runner. Levels dynamically change direction and flip, testing your reflexes. Compete globally and unlock customizations.
- One-tap gameplay
- Mind-bending geometry
- Randomly generated levels
- Chiptune soundtrack
- Unlockable customizations
- Global leaderboards
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Jump into the spinning circle of O-VOID! In this super minimal action runner, you’ll be jumping over obstacles with the tap of a finger. But this is not a regular platformer! The entire level can change direction or flip upside down to throw you off. Are you skilled enough to survive every challenge? Features: • Simple one-tap gameplay inside mind-bending geometry • 7 randomly generated levels for endless replayability • Unique and pumping chiptune soundtrack • Near impossible challenges to unlock player customizations • Global leaderboards to compete with the world on
Screenshots
Verdict
The clearest difference is in-app purchases: Clicka! at none against O's 1. Clicka! also leads on ads (none vs shown) and review sentiment (95% vs 72%). On price, rating, update cadence 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
Both are free to download. O sells 1 one-off in-app purchase. Clicka! asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Clicka! against 4.6 for O. That said, the two scores are not equally well evidenced: Clicka! has 2.4K ratings behind it against 191, so its average is the more settled of the two. Written reviews are what separate them: 95% of Clicka!'s written reviews are positive against 72% of O's.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 28, 2026 and September 26, 2026 respectively.
| Parameter | Clicka! | O |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.4K ratings) — better | 4.6 (191 ratings) |
| Positive reviews | 95.0% of reviews — better | 72.4% of reviews |
| Number of ratings | 2.4K — better | 191 |
| Update frequency | Weekly | Weekly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Calvin Liang | Gearhead Games ApS |
Customer experience
Clicka!
O
User reviews
Clicka!
From 2.4K App Store ratingsWhat we love
- 👍 Customizable click sounds and vibrations
- 👍 Addictive and satisfying to use
- 👍 Helps with ADHD and anxiety
- 👍 No ads or in-app purchases
Room to improve
- 🐛 Crashes or freezes on some devices
- 🐛 Leaderboard issues or not working
- 🔋 Can be a major time sink
O
From 191 App Store ratingsWhat we love
- 🎶 Great music/soundtrack
- 🎮 Challenging and satisfying gameplay
- 💡 Innovative game mechanics
- 💯 High skill ceiling/mastery
- ✨ Simple yet addictive
Room to improve
- 😵 Dizzying/makes users sick
- 🥵 Extremely difficult/too hard
- ⏳ Too short/lacks content
- 😵💫 Trippy and weird visuals
- 🤢 Makes users feel sick
Bugs and requests
Clicka!
Reported bugs
2 issues- Leaderboard not updating properly
- Crashes when opening the app
Requested features
3 requests- Add a reset button
- Expand color and sound customization options
- Implement an endless mode or challenges
O
Reported bugs
9 issues- Spinning makes users sick
- Obstacles in later levels require luck/insane reaction time
- Effect does not disappear properly in penultimate level
- Game is glitchy, laggy, and unresponsive
- Revive ad doesn't work/can't close ad
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- Ads during gameplay cause freezes
- Level 6 is impossible
- Ads are annoying and unsolicited
- Forced ads when choosing to restart
Requested features
6 requests- Add more levels
- New dimension/different gameplay principle
- User level creator
- More beats/music synchronization
- Option to turn down color brightness
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- More publicity for leaderboards
In-app purchases
Clicka!
No in-app purchases
O
- No Ads$2.99
