VoidMatter vs Zerko
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
VoidMatter
Explore a visually stunning and calming interactive experience. Watch intricate fractal shapes materialize as you follow simple on-screen prompts. All graphics are dynamically generated by code.
- Interactive fractal generation
- Code-based graphics
- Relaxing visual experience
- Watch complication for saving images
- Simple on-screen instructions
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VoidMatter is a beautiful and relaxing interactive experience. Follow the on-screen instructions and watch the beautiful shapes take form. All graphics are completely generated by code using the power of fractals. While using the X-Large complication the watch app will save the last picture on your watch face.
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
Screenshots
Verdict
The clearest difference is review sentiment: Zerko at 93% against VoidMatter's 0%. Zerko also leads on rating (4.9 vs 2.0) and iOS requirement (12.0 vs 16.0). VoidMatter'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
VoidMatter costs $0.99 and Zerko $2.99 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 2.0. Both are backed by a comparable volume of ratings — 7 and 14 respectively. Written reviews point the same way: 0% of VoidMatter's written reviews are positive against 93% of Zerko's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.
| Parameter | VoidMatter | Zerko |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 2.0 (7 ratings) | 4.9 (14 ratings) — better |
| Positive reviews | 0.0% of reviews | 93.3% of reviews — better |
| Number of ratings | 7 | 14 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | Lucas Assis Rodrigues | Maciej Targoni |
Customer experience
VoidMatter
Zerko
In-app purchases
VoidMatter
No in-app purchases
Zerko
No in-app purchases
