Zerko vs Eyka
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Zero-sum number puzzles
- Strategic block placement
- Relaxing gameplay
- No time pressure
- No in-app purchases
- No ads
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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
Eyka
Engage in a tranquil puzzle experience focused on color and form. Rotate structures and tap blocks to shift colors, observing how each action influences its neighbors. Progress through six distinct color chapters with a calming, intuitive interface.
- Intuitive, minimalist puzzle design
- Six curated color chapters
- No ads, no timers, no interruptions
- Fully offline play
- 108 handcrafted puzzles
- Focus and calm gameplay
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Eyka is a quiet puzzle experience centered on color, form, and focus. Each puzzle is explored by rotating the structure in space and tapping blocks to shift color. Every interaction affects its neighbors, creating evolving relationships that reward observation and intention. Across six carefully composed color chapters, the visual tone subtly changes as you progress, maintaining clarity while introducing variation and depth. Eyka is designed to feel calm, intentional, and intuitive. There are no timers, no distractions, and no pressure — just thoughtful interaction and a sense of balance unfolding over time. Designed For - Focus and calm - Minimal interaction - Unhurried play Features - Intuitive, minimalist puzzle design - Six curated color chapters - No ads, no timers, no interruptions - Fully offline play - 108 handcrafted puzzles
Screenshots
Verdict
The clearest difference is review sentiment: Zerko at 93% against Eyka's 75%. Zerko also leads on rating (4.9 vs 4.7) and iOS requirement (12.0 vs 15.0). Eyka's advantage is price ($0.99 vs $2.99). On ratings volume, update cadence, ads and in-app purchases 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
Zerko costs $2.99 and Eyka $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Zerko holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 14 and 27 respectively. Written reviews point the same way: 93% of Zerko's written reviews are positive against 75% of Eyka's.
Zerko ships an update every 3 weeks, Eyka fortnightly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | Zerko | Eyka |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 4.9 (14 ratings) — better | 4.7 (27 ratings) |
| Positive reviews | 93.3% of reviews — better | 75.0% of reviews |
| Number of ratings | 14 | 27 — better |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #196 | #170 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 100 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Maciej Targoni | Jason Walters |
Customer experience
Zerko
Eyka
In-app purchases
Zerko
No in-app purchases
Eyka
No in-app purchases
