# Sudoku for Dad vs RainMaker 4

The clearest difference is in-app purchases: Sudoku for Dad at none against RainMaker 4's 7. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. RainMaker 4 sells 7 one-off in-app purchases. Sudoku for Dad asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Sudoku for Dad against 5.0 for RainMaker 4. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Sudoku for Dad ships an update every 9 days, RainMaker 4 every 8 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sudoku for Dad | RainMaker 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/sudoku-for-dad/id6742363367/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/rainmaker-4/id6751785587/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 7 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Byrne](https://appshunter.io/developer/1670591286) | [Trevor Phillips](https://appshunter.io/developer/1836803938) |

## What reviewers say

### Sudoku for Dad

[App page](https://appshunter.io/ios/app/sudoku-for-dad/id6742363367)

A classic Sudoku experience designed for a calm and enjoyable gameplay. Enjoy a clean interface without intrusive advertisements.

**Highlights:** Classic Sudoku gameplay, Calm and clean interface, Ad-free experience, Designed for enjoyment

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

**In-app purchases:** none


### RainMaker 4

[App page](https://appshunter.io/ios/app/rainmaker-4/id6751785587)

Create personalized soundscapes with realistic rain and nature sounds for relaxation, focus, and meditation. Design your ideal weather experience anytime, anywhere.

**Highlights:** Realistic rain sounds, Nature soundscapes, Customizable sound mixing, Relaxation aid, Focus enhancement, Meditation tool

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LightningStrikes | $0.99 | one-time |
| rainforest | $0.99 | one-time |
| rainOnMetal | $0.99 | one-time |
| thunderstorm | $0.99 | one-time |
| rivers | $0.99 | one-time |
| waterfalls | $0.99 | one-time |
| continuousRainMode | $4.99 | one-time |


## Frequently asked questions

### Is Sudoku for Dad free?

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

### Is RainMaker 4 free?

RainMaker 4 is free to download, with in-app purchases available.

### Which has better reviews, Sudoku for Dad or RainMaker 4?

Sudoku for Dad and RainMaker 4 are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Sudoku for Dad or RainMaker 4 have ads?

Neither Sudoku for Dad nor RainMaker 4 shows ads.

### Which is updated more often, Sudoku for Dad or RainMaker 4?

Sudoku for Dad ships an update every 9 days, and RainMaker 4 every 8 days. Most recently, Sudoku for Dad was updated on October 21, 2026 and RainMaker 4 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.*