# テラリス３（４人で対戦 テクSpin） vs ブロックグリッド 81 (BlockGrid 81)

The clearest difference is ads: テラリス３（４人で対戦 テクSpin） at none against ブロックグリッド 81 (BlockGrid 81)'s shown. テラリス３（４人で対戦 テクSpin） also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (12.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

テラリス３（４人で対戦 テクSpin） ships an update every 2 months, ブロックグリッド 81 (BlockGrid 81) every 8 months. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | テラリス３（４人で対戦 テクSpin） | ブロックグリッド 81 (BlockGrid 81) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/spin/id1384365357/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 86.4% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free | — |
| Size | 73 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eiichi Matsunaga](https://appshunter.io/developer/847994924) | [IBUKI YOSHIDA](https://appshunter.io/developer/1856209051) |

## What reviewers say

### テラリス３（４人で対戦 テクSpin）

[App page](https://appshunter.io/ios/app/spin/id1384365357)

Engage in strategic block-dropping gameplay with various modes, including competitive multiplayer and solo practice. Master advanced techniques like T-Spins and create custom block arrangements. Enjoy a free experience with customizable settings and cross-game compatibility.

**Highlights:** T-Spin and back-to-back practice, Multiple game modes (Tech Spin, Classic, vs Com), 2-4 player local multiplayer, Cross-game play with sister apps, Block arrangement and chain testing, Customizable BGM and SE settings

**In-app purchases:** none


### ブロックグリッド 81 (BlockGrid 81)

[App page](https://appshunter.io/ios/app/81-blockgrid-81/id6756016996)

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

**In-app purchases:** none


## Frequently asked questions

### Is テラリス３（４人で対戦 テクSpin） free?

テラリス３（４人で対戦 テクSpin） is free to download, with no in-app purchases.

### Is ブロックグリッド 81 (BlockGrid 81) free?

ブロックグリッド 81 (BlockGrid 81) is free to download, with no in-app purchases.

### Do テラリス３（４人で対戦 テクSpin） or ブロックグリッド 81 (BlockGrid 81) have ads?

ブロックグリッド 81 (BlockGrid 81) shows ads; テラリス３（４人で対戦 テクSpin） does not.

### Which is updated more often, テラリス３（４人で対戦 テクSpin） or ブロックグリッド 81 (BlockGrid 81)?

テラリス３（４人で対戦 テクSpin） ships an update every 2 months, and ブロックグリッド 81 (BlockGrid 81) every 8 months. Most recently, テラリス３（４人で対戦 テクSpin） was updated on June 1, 2026 and ブロックグリッド 81 (BlockGrid 81) on September 19, 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.*