# IRPCS vs SailPrep

The clearest difference is in-app purchases: SailPrep at none against IRPCS's 2. SailPrep also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. IRPCS sells 2 in-app purchases, starting at $4.99 per month. SailPrep asks for nothing beyond the download.

IRPCS ships an update fortnightly, SailPrep every 2 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | IRPCS | SailPrep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Size | 49 MB | 66 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Paul Whittle](https://appshunter.io/developer/1076749256) | [Monika Zibolyte](https://appshunter.io/developer/6772920181) |

## What reviewers say

### IRPCS

[App page](https://appshunter.io/ios/app/irpcs/id6762519800)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IRPCS Pro 1 month | $4.99 | per month |
| IRPCS Pro | $29.99 | per year |


### SailPrep

[App page](https://appshunter.io/ios/app/sailprep/id6772920179)

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

**In-app purchases:** none


## Frequently asked questions

### Is IRPCS free?

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

### Is SailPrep free?

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

### Do IRPCS or SailPrep have ads?

IRPCS shows ads; SailPrep does not.

### Which is updated more often, IRPCS or SailPrep?

IRPCS ships an update fortnightly, and SailPrep every 2 weeks. Most recently, IRPCS was updated on October 1, 2026 and SailPrep on October 5, 2026.

---

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