# SailorSoft Draft Survey Pro vs iAudix

The clearest difference is in-app purchases: iAudix at none against SailorSoft Draft Survey Pro's 1. SailorSoft Draft Survey Pro's advantage is update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SailorSoft Draft Survey Pro sells 1 one-off in-app purchase. iAudix asks for nothing beyond the download.

SailorSoft Draft Survey Pro ships an update every 5 days, iAudix fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | SailorSoft Draft Survey Pro | iAudix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sailorsoft-draft-survey-pro/id6761015662/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free | — |
| Size | 122 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEDARDO JR BAJE](https://appshunter.io/developer/1887315859) | [TECVISIO AI - FZCO](https://appshunter.io/developer/6783809509) |

## What reviewers say

### SailorSoft Draft Survey Pro

[App page](https://appshunter.io/ios/app/sailorsoft-draft-survey-pro/id6761015662)

This application assists marine professionals with offline cargo calculations. It provides essential tools for draft surveys, helping to determine vessel displacement and cargo weight accurately. Designed for efficiency at sea, it ensures reliable data processing without internet access.

**Highlights:** Offline cargo calculations, Draft survey assistance, Vessel displacement determination, Cargo weight calculation, Reliable data processing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Lifetime Access | $39.99 | one-time |


### iAudix

[App page](https://appshunter.io/ios/app/iaudix/id6783864344)

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

**In-app purchases:** none


## Frequently asked questions

### Is SailorSoft Draft Survey Pro free?

SailorSoft Draft Survey Pro is free to download, with in-app purchases available.

### Is iAudix free?

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

### Do SailorSoft Draft Survey Pro or iAudix have ads?

Neither SailorSoft Draft Survey Pro nor iAudix shows ads.

### Which is updated more often, SailorSoft Draft Survey Pro or iAudix?

SailorSoft Draft Survey Pro ships an update every 5 days, and iAudix fortnightly. Most recently, SailorSoft Draft Survey Pro was updated on October 31, 2026 and iAudix on October 31, 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.*