# Class surveyor vs Sail Assist

The clearest difference is iOS requirement: Class surveyor at 11.0 against Sail Assist's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Class surveyor ships an update every 7 months, Sail Assist every 4 months. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Class surveyor | Sail Assist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Size | 58 MB | 25 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OLEKSANDR IZERGIN](https://appshunter.io/developer/1678396126) | [Japan Radio Co.,Ltd.](https://appshunter.io/developer/932220259) |

## What reviewers say

### Class surveyor

[App page](https://appshunter.io/ios/app/class-surveyor/id6450609017)

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

**In-app purchases:** none


### Sail Assist

[App page](https://appshunter.io/ios/app/sail-assist/id6473762428)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Class surveyor free?

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

### Is Sail Assist free?

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

### Do Class surveyor or Sail Assist have ads?

Neither Class surveyor nor Sail Assist shows ads.

### Which is updated more often, Class surveyor or Sail Assist?

Class surveyor ships an update every 7 months, and Sail Assist every 4 months. Most recently, Class surveyor was updated on October 10, 2026 and Sail Assist on October 9, 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.*