# 7 Planets vs Tertiary Sudoku

The clearest difference is in-app purchases: Tertiary Sudoku at none against 7 Planets's 2. Tertiary Sudoku also leads on update cadence (every 2 weeks vs every 4 months). 7 Planets's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 7 Planets sells 2 in-app purchases, starting at $1.99 per month. Tertiary Sudoku asks for nothing beyond the download.

7 Planets ships an update every 4 months, Tertiary Sudoku every 2 weeks. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 7 Planets | Tertiary Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (16 ratings)](https://appshunter.io/ios/app/7-planets/id478895559/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 38.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 107 MB | 1 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Tomislav Puzak](https://appshunter.io/developer/468604455) | [Alfred Ang](https://appshunter.io/developer/1880940227) |

## What reviewers say

### 7 Planets

[App page](https://appshunter.io/ios/app/7-planets/id478895559)

This relaxing logic puzzle game features a wooden board and colorful marbles. Solve brain-teasing challenges by rolling and matching marbles to restore order. Enjoy offline play at your own pace with simple, satisfying gameplay.

**Highlights:** Wooden board and marble gameplay, Mind-bending logic challenges, Offline puzzle solving, Three distinct game modes, Leaderboards and achievements, Satisfying tactile experience

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7 Planets Premium (Monthly) | $1.99 | per month |
| 7 Planets Premium (Yearly) | $8.99 | per year |


### Tertiary Sudoku

[App page](https://appshunter.io/ios/app/tertiary-sudoku/id6779973622)

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

**In-app purchases:** none


## Frequently asked questions

### Is 7 Planets free?

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

### Is Tertiary Sudoku free?

Tertiary Sudoku is free to download, with no in-app purchases.

### Do 7 Planets or Tertiary Sudoku have ads?

Neither 7 Planets nor Tertiary Sudoku shows ads.

### Which is updated more often, 7 Planets or Tertiary Sudoku?

7 Planets ships an update every 4 months, and Tertiary Sudoku every 2 weeks. Most recently, 7 Planets was updated on October 23, 2026 and Tertiary Sudoku on October 15, 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.*