# Piko's Blocks vs Gem Diver

Piko's Blocks and Gem Diver both sit at 5.0 stars, but that hides the real split: 75% of Piko's Blocks's written reviews are positive against 0% of Gem Diver's. Piko's Blocks also leads on in-app purchases (none vs 5). Gem Diver's advantage is update cadence (every 6 days vs monthly) and iOS requirement (8.0 vs 15.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Gem Diver sells 5 one-off in-app purchases. Piko's Blocks asks for nothing beyond the download.

Piko's Blocks holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews point the same way: 75% of Piko's Blocks's written reviews are positive against 0% of Gem Diver's.

Piko's Blocks ships an update monthly, Gem Diver every 6 days. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Piko's Blocks | Gem Diver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/pikos-blocks-spatial-lite/id1131697579/reviews)** | [4.8 (6 ratings)](https://appshunter.io/ios/app/gem-diver/id1209285622/reviews) |
| Number of ratings | 6 | 6 |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 72 MB | 221 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Creetah Ltd.](https://appshunter.io/developer/1091214069) | [MunkyFun, Inc.](https://appshunter.io/developer/298697070) |

## What reviewers say

### Piko's Blocks

[App page](https://appshunter.io/ios/app/pikos-blocks-spatial-lite/id1131697579)

This app helps children aged 4+ develop spatial reasoning and 3D geometric thinking through engaging exercises. It offers over 300 unique challenges designed in cooperation with occupational therapists and teachers, with adaptive difficulty and progress monitoring.

**Highlights:** Spatial and Visual Reasoning practice, 3D geometric thinking development, Problem solving exercises, Suitable for ages 4+ (no reading required), Over 300 unique exercises, Adaptive difficulty levels, Progress monitoring

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

**In-app purchases:** none


### Gem Diver

[App page](https://appshunter.io/ios/app/gem-diver/id1209285622)

A relaxing puzzle game where you connect three or more gems in a chain to clear them and reveal new ones. Progress through levels, uncover crystals, and discover what lies beneath the ocean's surface. Challenge yourself to achieve a new high score in this engaging experience.

**Highlights:** Match 3 or more gems, Chain reactions, Clear rows, Unlock new crystals, High score challenges, Calming atmosphere

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Doubler | $0.99 | one-time |
| Coins Pack | $1.99 | one-time |
| Pack of Bolts | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Coin Doubler | $4.99 | one-time |


## Frequently asked questions

### Is Piko's Blocks free?

Piko's Blocks is free to download, with no in-app purchases.

### Is Gem Diver free?

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

### Which has better reviews, Piko's Blocks or Gem Diver?

Piko's Blocks is rated higher. Piko's Blocks averages 5.0 out of 5 from 6 ratings, while Gem Diver averages 4.8 from 6 ratings.

### Do Piko's Blocks or Gem Diver have ads?

Neither Piko's Blocks nor Gem Diver shows ads.

### Which is updated more often, Piko's Blocks or Gem Diver?

Piko's Blocks ships an update monthly, and Gem Diver every 6 days. Most recently, Piko's Blocks was updated on November 4, 2026 and Gem Diver on November 2, 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.*