# Zerko vs Bulble

The clearest difference is update cadence: Zerko at every 3 weeks against Bulble's every 2 months. Zerko also leads on chart position (#142 vs unranked) and iOS requirement (12.0 vs 15.0). Bulble's advantage is price ($0.99 vs $2.99). On rating, review sentiment, ratings volume and ads there is nothing between them.

Zerko costs $2.99 and Bulble $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 Bulble. Both are backed by a comparable volume of ratings — 14 and 21 respectively. Written reviews are what separate them: 93% of Zerko's written reviews are positive against 100% of Bulble's.

Zerko ships an update every 3 weeks, Bulble every 2 months. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Zerko | Bulble |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | [4.9 (14 ratings)](https://appshunter.io/ios/app/zerko/id6470181559/reviews) | **[5.0 (21 ratings)](https://appshunter.io/ios/app/bulble/id6740105271/reviews)** |
| Number of ratings | 14 | **21** |
| Positive reviews | 93.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Best chart rank | **#142** | — |
| Size | 100 MB | 255 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maciej Targoni](https://appshunter.io/developer/495165602) | [Marshall Mcgee](https://appshunter.io/developer/1788404186) |

## What reviewers say

### Zerko

[App page](https://appshunter.io/ios/app/zerko/id6470181559)

**Currently charting:** #142 Top Paid · Casual, #186 Top Paid · Puzzle (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Bulble

[App page](https://appshunter.io/ios/app/bulble/id6740105271)

A daily puzzle game where you connect tiles to create a single continuous grid. Offers endless random puzzles, difficult challenges, and daily puzzles to share. Customize the difficulty with modifiers.

**Highlights:** Connect tiles to form a grid, Daily shareable puzzles, Endless random generation, Difficulty modifiers, No ads or in-app purchases

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zerko free?

Zerko costs $2.99, with no in-app purchases.

### Is Bulble free?

Bulble costs $0.99, with no in-app purchases.

### Which has better reviews, Zerko or Bulble?

Bulble is rated higher. Zerko averages 4.9 out of 5 from 14 ratings, while Bulble averages 5.0 from 21 ratings.

### Do Zerko or Bulble have ads?

Neither Zerko nor Bulble shows ads.

### Which is updated more often, Zerko or Bulble?

Zerko ships an update every 3 weeks, and Bulble every 2 months. Most recently, Zerko was updated on September 30, 2026 and Bulble on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*