Squell vs Zerko
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Squell
A casual spelling game combining vocabulary challenges with spatial reasoning. Rearrange letter grids to form words, with move count impacting score. Enjoy offline play and save progress to return anytime.
- Spatial reasoning word puzzles
- Move-based scoring system
- Save progress and resume anytime
- Offline gameplay
- Addictive and engaging gameplay
- Simple, clean design
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Squell is a casual spelling game that challenges your vocabulary and your spatial reasoning. Imagine Boggle got a little too friendly with a Rubik's cube and you've got Squell. Rearrange a grid of letters to spell words. How many moves you make matters, but get good and keep the game going to rack up tons of points. Squell games are controlled by how many moves you make, so you play it at your own pace. It's a great game to put down and come back to later, since all progress is saved on your device as you play and you can always review the words you've already spelled. It works offline, so it's great on a plane, a train, or in that waiting room with no cell service. Squell is simple to play, but with plenty of strategies to uncover and master, you'll come back to it again and again!
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 update cadence: Squell at every 8 days against Zerko's every 3 weeks. Squell also leads on chart position (#147 vs unranked) and price ($0.99 vs $2.99). On rating, review sentiment, ratings volume and ads 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
Squell costs $0.99 and Zerko $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for Squell against 4.9 for Zerko. Both are backed by a comparable volume of ratings — 26 and 14 respectively. Written reviews are what separate them: 100% of Squell's written reviews are positive against 93% of Zerko's.
Squell ships an update every 8 days, Zerko every 3 weeks. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.
| Parameter | Squell | Zerko |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 4.8 (26 ratings) | 4.9 (14 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 93.3% of reviews |
| Number of ratings | 26 — better | 14 |
| Update frequency | Every 8 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #147 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 29 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | Compassionate Robot Studios LLC | Maciej Targoni |
Customer experience
Squell
Zerko
In-app purchases
Squell
No in-app purchases
Zerko
No in-app purchases









