# Spectral vs Tetra Piece

The clearest difference is in-app purchases: Tetra Piece at none against Spectral's 1. Tetra Piece also leads on update cadence (every 5 days vs every 11 days) and ratings volume (29 vs 6). Spectral's advantage is ads (none vs shown) and review sentiment (100% vs 67%). On price and device support there is nothing between them.

Both are free to download. Spectral sells 1 one-off in-app purchase. Tetra Piece asks for nothing beyond the download.

Spectral holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 6 and 29 respectively. Written reviews point the same way: 100% of Spectral's written reviews are positive against 67% of Tetra Piece's.

Spectral ships an update every 11 days, Tetra Piece every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Spectral | Tetra Piece |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/spectral-code-breaker/id6755613596/reviews)** | [4.7 (29 ratings)](https://appshunter.io/ios/app/tetra-piece/id6755719588/reviews) |
| Number of ratings | 6 | **29** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 5 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 27 MB | 353 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Red Fury LLC](https://appshunter.io/developer/438106406) | [FourM, K.K.](https://appshunter.io/developer/1553438500) |

## What reviewers say

### Spectral

[App page](https://appshunter.io/ios/app/spectral-code-breaker/id6755613596)

Crack daily color sequence puzzles in six guesses. Choose from four difficulty sizes, from quick mini-puzzles to challenging max-level sequences. Enjoy unlimited free play or unlock the full archive with a one-time purchase.

**Highlights:** Daily color sequence puzzles, Four difficulty sizes, Wordle-style deduction, Mastermind logic, Streak and stats tracking, Game Center leaderboards, One-time purchase for unlimited play

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlimited | $2.99 | one-time |


### Tetra Piece

[App page](https://appshunter.io/ios/app/tetra-piece/id6755719588)

Assemble intricate pictures by dragging and snapping fragments into place on a grid. Connected parts merge automatically as you align them. Complete each stage by setting all pieces to advance to the next level.

**Highlights:** Drag and snap picture fragments, Automatic merging of connected parts, Complete stages by setting all pieces, Progress through multiple levels, Intuitive grid-based assembly

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

**In-app purchases:** none


## Frequently asked questions

### Is Spectral free?

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

### Is Tetra Piece free?

Tetra Piece is free to download, with no in-app purchases.

### Which has better reviews, Spectral or Tetra Piece?

Spectral is rated higher. Spectral averages 5.0 out of 5 from 6 ratings, while Tetra Piece averages 4.7 from 29 ratings.

### Do Spectral or Tetra Piece have ads?

Tetra Piece shows ads; Spectral does not.

### Which is updated more often, Spectral or Tetra Piece?

Spectral ships an update every 11 days, and Tetra Piece every 5 days. Most recently, Spectral was updated on October 24, 2026 and Tetra Piece on October 24, 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.*