# Size Up vs RainMaker 4

The clearest difference is in-app purchases: Size Up at none against RainMaker 4's 7. Size Up also leads on iOS requirement (13.0 vs 18.0). RainMaker 4's advantage is ads (none vs shown) and update cadence (every 8 days vs every 5 weeks). On price, rating, ratings volume and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Size Up against 5.0 for RainMaker 4. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Size Up ships an update every 5 weeks, RainMaker 4 every 8 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Size Up | RainMaker 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/size-up-epic-run-race-3d/id6504098546/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/rainmaker-4/id6751785587/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 291 MB | 7 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [TapNation](https://appshunter.io/developer/1483575279) | [Trevor Phillips](https://appshunter.io/developer/1836803938) |

## What reviewers say

### Size Up

[App page](https://appshunter.io/ios/app/size-up-epic-run-race-3d/id6504098546)

Rush through a city, collecting people of your color to grow your character's size and strength. Avoid obstacles and opponents of different colors. Fight bosses and capture fortresses to win.

**Highlights:** Collect same-colored crowds to grow character size, Avoid obstacles and different-colored crowds, Fight bosses and capture fortresses, Smooth swipe controls, Multiple unique levels, Rewards and gifts

**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 Size Up free?

Size Up 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, Size Up or RainMaker 4?

Size Up and RainMaker 4 are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Size Up or RainMaker 4 have ads?

Size Up shows ads; RainMaker 4 does not.

### Which is updated more often, Size Up or RainMaker 4?

Size Up ships an update every 5 weeks, and RainMaker 4 every 8 days. Most recently, Size Up was updated on October 10, 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.*