Comparison

Unloop Premium vs Zerko

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

Head to head
About

Unloop Premium

A minimalist puzzle game offering a calm and engaging experience. Solve 150 levels by eliminating blue portals at your own pace, with no distractions or intrusive elements. Enjoy a soothing soundtrack and boost your problem-solving skills.

Highlights
  • 150 unlocked puzzle levels
  • Calm and minimalist design
  • Distraction-free environment
  • Ambient soundtrack
  • Progressive difficulty
  • Stress relief
Features
Read full description

Unloop is a calm and minimalist puzzle game designed to provide a soothing and engaging experience. Your goal is to eliminate all the blue portals, embarking on a journey of thoughtful problem-solving. This Premium version has all 150 levels already unlocked. Unloop is completely ad-free. Experience an absence of text, intrusive tutorials, timers, and distractions. Immerse yourself in the calming melodies of the soundtrack as you engage with each puzzle at your own pace. Unloop offers a series of 150 meticulously crafted levels that gradually progress in complexity, introducing new elements and twists that require creativity and out-of-the-box thinking. Boost your IQ skills with brain-teasing puzzles! As you progress, you'll encounter a variety of levels that seamlessly blend familiar mechanics with innovative concepts, creating a captivating and distinctive gameplay experience. Whether you're a seasoned puzzle enthusiast or new to the genre, Unloop offers a unique challenge that appeals to a broad range of players of all ages. Download Unloop and relieve stress while enjoying an artistic, exciting and creative dimension of mind-teasing puzzles. Achieve Unloop mastery! Key Features: - Enjoy a stress-free, calm and relaxing puzzle-solving adventure. - Solve your way through 150 intricately designed levels, each increasing in complexity. - Experience a distraction-free environment with no text or interruptions. - Explore progressively introduced elements and mechanics. - Immerse yourself in a soothing ambient soundtrack. - Crafted over 2.5 years by a solo developer.

About

Zerko

A relaxing puzzle game where you strategically place blocks to make all numbers on the board equal zero. Enjoy a no-pressure experience with calming audio and no in-app purchases or ads.

Highlights
  • Zero-sum number puzzles
  • Strategic block placement
  • Relaxing gameplay
  • No time pressure
  • No in-app purchases
  • No ads
Features
Read full description

Some call it reverse sudoku, while others call it a nullification game, but it's Zerko - a puzzle game filled with shapes, numbers, and a straightforward goal: make every number zero. To achieve this, you need to strategically place blocks of various shapes and values so that the numbers on the board effectively "remove up" to zero. Like all my games, this one too is about relaxation... Just chill. There are no points, no time pressure, no data collection, no in-app purchases, no ads, no nonsense ;) My only hope is that you'll enjoy it and that I'll be able to add new content and levels for you in the future. Relaxing audio by: Marek Koszczyński

Screenshots

Unloop Premium4 screens
Zerko4 screens

Verdict

The call

The clearest difference is price: Unloop Premium at $1.99 against Zerko's $2.99. Unloop Premium also leads on iOS requirement (10.0 vs 12.0). On rating, review sentiment, ratings volume and update cadence 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

Unloop Premium costs $1.99 and Zerko $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Unloop Premium against 4.9 for Zerko. Both are backed by a comparable volume of ratings — 16 and 14 respectively. Written reviews are what separate them: 100% of Unloop Premium's written reviews are positive against 93% of Zerko's.

UpkeepUpdate frequency

Unloop Premium ships an update every 2 weeks, Zerko every 3 weeks. The most recent releases landed on August 1, 2026 and September 11, 2026 respectively.

Scorecard2 real differences · 8 level
Unloop Premium versus Zerko: the parameters behind the verdict, then further details
ParameterUnloop PremiumZerko
Price$1.99 — better$2.99
Rating5.0 (16 ratings) — better4.9 (14 ratings)
Positive reviews100.0% of reviews — better93.3% of reviews
Number of ratings16 — better14
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.0
Further details — not scored
Size61 MB100 MB
Age rating4+4+
DeveloperJurij GalievskijMaciej Targoni

Customer experience

Unloop Premium

All ratings16 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Zerko

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive93.3%
Neutral6.7%
Negative0.0%

In-app purchases

None

Unloop Premium

No in-app purchases

None

Zerko

No in-app purchases

Questions

Is Unloop Premium free?
Unloop Premium costs $1.99, with no in-app purchases.
Is Zerko free?
Zerko costs $2.99, with no in-app purchases.
Which has better reviews, Unloop Premium or Zerko?
Unloop Premium is rated higher. Unloop Premium averages 5.0 out of 5 from 16 ratings, while Zerko averages 4.9 from 14 ratings.
Do Unloop Premium or Zerko have ads?
Neither Unloop Premium nor Zerko shows ads.
Which is updated more often, Unloop Premium or Zerko?
Unloop Premium ships an update every 2 weeks, and Zerko every 3 weeks. Most recently, Unloop Premium was updated on August 1, 2026 and Zerko on September 11, 2026.

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