Comparison

O vs SL!NG

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • One-tap gameplay
  • Mind-bending geometry
  • Randomly generated levels
  • Chiptune soundtrack
  • Unlockable customizations
  • Global leaderboards
Features
Read full description

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

About

SL!NG

Features
Read full description

Pull back, aim, and release. SL!NG turns a single touch into a fast, tactile momentum challenge. Every launch is about timing: read the field, choose your angle, and keep the run alive. PLAY YOUR WAY • Classic — chase distance and a new personal best • Combo — link clean moves and protect your multiplier • Time Attack — score as much as possible before time runs out • Daily Challenge — one shared challenge every day • Rush — react quickly as the pace climbs • Ghost Race — compete against a rival run MAKE IT YOURS Earn coins, complete achievements, and unlock a growing collection of balls, trails, and maps. Each style changes the look while the precise one-touch controls stay familiar. CLIMB THE RANKS Compare scores on global, country, and daily leaderboards. Optional cloud save keeps your progress connected. No account is required for core gameplay. Easy to start. Difficult to master. How far can you SL!NG?

Screenshots

O4 screens
SL!NG4 screens

Verdict

The call

The clearest difference is in-app purchases: SL!NG at none against O's 1. O's advantage is iOS requirement (13.0 vs 17.6). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. O sells 1 one-off in-app purchase. SL!NG asks for nothing beyond the download.

UpkeepUpdate frequency

O ships an update weekly, SL!NG every 11 days. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
O versus SL!NG: the parameters behind the verdict, then further details
ParameterOSL!NG
PriceFreeFree
Rating4.6 (191 ratings) — better—
Positive reviews72.4% of reviews—
Number of ratings191 — better—
Update frequencyWeekly — betterEvery 11 days
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size43 MB13 MB
Age rating4+12+
DeveloperGearhead Games ApSArmin Miranda

Bugs and requests

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
Show 4 more
  • 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
Show 1 more
  • More publicity for leaderboards

SL!NG

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

O

One-time1
  • No Ads$2.99
None

SL!NG

No in-app purchases

Questions

Is O free?
O is free to download, with in-app purchases available.
Is SL!NG free?
SL!NG is free to download, with no in-app purchases.
Do O or SL!NG have ads?
Both O and SL!NG show ads.
Which is updated more often, O or SL!NG?
O ships an update weekly, and SL!NG every 11 days. Most recently, O was updated on October 17, 2026 and SL!NG on October 5, 2026.

Other comparisons