# RamSpin vs PDF Slim

The clearest difference is in-app purchases: RamSpin at none against PDF Slim's 1. RamSpin also leads on ads (none vs shown) and update cadence (every 3 days vs weekly). PDF Slim's advantage is iOS requirement (15.0 vs 17.0). On rating, ratings volume and device support there is nothing between them.

On the App Store both sit at effectively the same score — 5.0 for RamSpin against 5.0 for PDF Slim. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

RamSpin ships an update every 3 days, PDF Slim weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | RamSpin | PDF Slim |
| --- | --- | --- |
| Price | — | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ramspin/id6758879106/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-slim-reduce-pdf-size/id6787603119/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Paid | **Ad-supported** |
| Size | 5 MB | 14 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joowon Lee](https://appshunter.io/developer/1872884823) | [MBG Studio](https://appshunter.io/developer/1401126212) |

## What reviewers say

### RamSpin

[App page](https://appshunter.io/ios/app/ramspin/id6758879106)

This app offers a suite of premium decision-making tools for Apple Watch, including number roulette, custom spinners, and dice rollers. Enjoy realistic physics and sound effects for an immersive experience, all without any advertisements.

**Highlights:** Number roulette with realistic physics, Customizable spinners for personalized choices, 360-degree random direction selector, Dual dice roller with 3D animation, Coin flip for quick decisions, Traditional Yut Nori game simulation, Random number generator for lotteries

**Features:** Apple Watch app

**In-app purchases:** none


### PDF Slim

[App page](https://appshunter.io/ios/app/pdf-slim-reduce-pdf-size/id6787603119)

Reduce the size of your PDF files with adjustable quality settings. Save or share compressed documents directly from the application. Access detailed information about each PDF.

**Highlights:** Compress PDF files, Adjustable quality levels, Save compressed PDFs, Share instantly, View PDF details

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is RamSpin free?

Pricing for RamSpin is not currently listed on the App Store.

### Is PDF Slim free?

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

### Which has better reviews, RamSpin or PDF Slim?

RamSpin and PDF Slim are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do RamSpin or PDF Slim have ads?

PDF Slim shows ads; RamSpin does not.

### Which is updated more often, RamSpin or PDF Slim?

RamSpin ships an update every 3 days, and PDF Slim weekly. Most recently, RamSpin was updated on October 31, 2026 and PDF Slim on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*