# Crystal Abyss vs Blockglow

The clearest difference is in-app purchases: Crystal Abyss at none against Blockglow's 1. Crystal Abyss also leads on ads (none vs shown). Blockglow's advantage is update cadence (every 4 days vs monthly) and iOS requirement (15.0 vs 18.2). On price and device support there is nothing between them.

Both are free to download. Blockglow sells 1 one-off in-app purchase. Crystal Abyss asks for nothing beyond the download.

Crystal Abyss ships an update monthly, Blockglow every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Crystal Abyss | Blockglow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/blockglow/id6793242263/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 9 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ANTONIO BORRERO GRANELL](https://appshunter.io/developer/1833871025) | [Spec Social, Inc.](https://appshunter.io/developer/6793242265) |

## What reviewers say

### Crystal Abyss

[App page](https://appshunter.io/ios/app/crystal-abyss/id6751184987)

**In-app purchases:** none


### Blockglow

[App page](https://appshunter.io/ios/app/blockglow/id6793242263)

A satisfying block puzzle game with multiple modes, including endless classic, timed challenges, and level-based adventures. Create big combos by clearing rows and columns on an 8x8 board. Plays offline and offers a one-time purchase to remove ads.

**Highlights:** Multiple game modes (Classic, Adventure, Picture, Blitz, Daily), Combo-based scoring, 8x8 board gameplay, Offline play, Picture puzzle creation, Mini-games

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Crystal Abyss free?

Crystal Abyss is free to download, with no in-app purchases.

### Is Blockglow free?

Blockglow is free to download, with in-app purchases available.

### Do Crystal Abyss or Blockglow have ads?

Blockglow shows ads; Crystal Abyss does not.

### Which is updated more often, Crystal Abyss or Blockglow?

Crystal Abyss ships an update monthly, and Blockglow every 4 days. Most recently, Crystal Abyss was updated on October 28, 2026 and Blockglow on October 31, 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.*