# Whois Master vs PrecondAI

The clearest difference is in-app purchases: Whois Master at none against PrecondAI's 3. Whois Master also leads on iOS requirement (15.6 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. PrecondAI sells 3 in-app purchases, starting at $2.99 per month. Whois Master asks for nothing beyond the download.

## The numbers

| Metric | Whois Master | PrecondAI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Paid | — |
| Size | 5 MB | 4 MB |
| Requires iOS | **15.6** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Emre Keles](https://appshunter.io/developer/1780421225) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Whois Master

[App page](https://appshunter.io/ios/app/whois-master/id6738364976)

This utility app allows users to perform comprehensive web lookups. It provides access to domain information, DNS records, SSL certificate details, and IP address tracking. It's designed to be a fast, reliable, and user-friendly tool for exploring essential web data.

**Highlights:** Domain lookups, DNS record access, SSL certificate details, IP address tracking, User-friendly interface

**Features:** Vision Pro support

**In-app purchases:** none


### PrecondAI

[App page](https://appshunter.io/ios/app/precondai/id6764200249)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PrecondAI Monthly | $2.99 | per month |
| PrecondAI Yearly | $19.99 | per year |
| PrecondAI Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Whois Master free?

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

### Is PrecondAI free?

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

### Do Whois Master or PrecondAI have ads?

Neither Whois Master nor PrecondAI shows ads.

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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.*