# Peaceful Solution vs Tetr

The clearest difference is update cadence: Tetr at every 3 weeks against Peaceful Solution's every 7 months. Peaceful Solution's advantage is iOS requirement (13.0 vs 15.5). On price, ads, 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.

Peaceful Solution ships an update every 7 months, Tetr every 3 weeks. Both last shipped on October 7, 2026.

## The numbers

| Metric | Peaceful Solution | Tetr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/peaceful-solution/id6444037038/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 28 MB | 183 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPod, Apple TV** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TvStartup Inc.](https://appshunter.io/developer/991223339) | [Tetr College of Business](https://appshunter.io/developer/1860194257) |

## What reviewers say

### Peaceful Solution

[App page](https://appshunter.io/ios/app/peaceful-solution/id6444037038)

This program offers character education for teachers, including a certification course. Live classes are available weekly. It aims to enhance teaching skills in character development.

**Highlights:** Character education program, Teacher certification course, Live classes, Weekly class schedule, Online learning

**Features:** macOS Compatibility

**In-app purchases:** none


### Tetr

[App page](https://appshunter.io/ios/app/tetr/id6756342725)

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

**In-app purchases:** none


## Frequently asked questions

### Is Peaceful Solution free?

Peaceful Solution is free to download, with no in-app purchases.

### Is Tetr free?

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

### Do Peaceful Solution or Tetr have ads?

Neither Peaceful Solution nor Tetr shows ads.

### Which is updated more often, Peaceful Solution or Tetr?

Peaceful Solution ships an update every 7 months, and Tetr every 3 weeks. Most recently, Peaceful Solution was updated on October 7, 2026 and Tetr on October 7, 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.*