Zerko vs Gridbusters
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
Gridbusters
A solo puzzle game where players fill a grid by placing numbers in sequential order. Each move has strict placement rules, testing memory, spatial thinking, and planning skills. Compete globally on leaderboards and replay endlessly with varied challenges.
- Sequential number placement
- Strict move rules
- Memory and spatial training
- Multiple grid sizes
- Global leaderboards
- Undo functionality
- Endless replayability
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Saurez-vous résoudre cette grille ? Gridbusters est un jeu de réflexion solo qui mettra votre cerveau à l'épreuve — et vous donnera envie d'y revenir sans cesse ! Le jeu est jouable en mode avion. COMMENT JOUER Remplissez chaque case de la grille en plaçant les nombres dans l'ordre. Facile ? Détrompez-vous. Chaque mouvement doit respecter une règle stricte : le nombre suivant doit être placé exactement à 3 cases horizontalement ou verticalement, ou exactement à 2 cases en diagonale. Une seule erreur et c'est terminé ! POURQUOI VOUS ALLEZ L'ADORER - Entraînez votre mémoire, votre raisonnement spatial et votre sens de la planification sans même vous en rendre compte - 4 tailles de grille — 5×5, 10×10, 15×15 et 20×20 — de l'échauffement au défi ultime - Affrontez le chronomètre et battez vos records - Grimpez au classement mondial et prouvez que vous êtes le maître incontesté de Gridbusters - Un jeu à la rejouabilité infinie — chaque partie est unique AFFRONTEZ LE MONDE ENTIER Créez votre profil et rejoignez le classement mondial. Avez-vous l'étoffe d'un champion ? Chaque seconde compte. JOUEZ À VOTRE FAÇON Bloqué sur un coup ? Utilisez le bouton Retour pour annuler votre dernier placement et tenter une autre approche. Anticipez ou improvisez — la grille ne pardonne aucune erreur ! Que vous ayez 2 minutes ou 2 heures, Gridbusters est le genre de jeu facile à prendre en main, mais difficile à lâcher. Prêt à faire voler la grille en éclats ? C'est parti !
Screenshots
Verdict
The clearest difference is ratings volume: Zerko at 14 against Gridbusters's 2. Zerko also leads on iOS requirement (12.0 vs 15.1). Gridbusters's advantage is price ($0.99 vs $2.99). On rating, review sentiment, update cadence 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
Zerko costs $2.99 and Gridbusters $0.99 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 — 4.9 for Zerko against 5.0 for Gridbusters. That said, the two scores are not equally well evidenced: Zerko has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 93% of Zerko's written reviews are positive against 100% of Gridbusters's.
Zerko ships an update every 3 weeks, Gridbusters fortnightly. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.
| Parameter | Zerko | Gridbusters |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 4.9 (14 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 93.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 2 |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 100 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Maciej Targoni | Rybro Games |
Customer experience
Zerko
Gridbusters
In-app purchases
Zerko
No in-app purchases
Gridbusters
No in-app purchases
