# Memorize vs DNS & Whois Toolkit

The clearest difference is in-app purchases: DNS & Whois Toolkit at none against Memorize's 1. Memorize's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.5). On price, update cadence and ads there is nothing between them.

Both are free to download. Memorize sells 1 in-app purchase, starting at $0.99 per month. DNS & Whois Toolkit asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Memorize | DNS & Whois Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memorize-memory-builder/id1589566038/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 3 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Raheel Ahmad](https://appshunter.io/developer/389008052) | [Corrado Ignoti](https://appshunter.io/developer/1474984677) |

## What reviewers say

### Memorize

[App page](https://appshunter.io/ios/app/memorize-memory-builder/id1589566038)

This app helps you memorize information using a spaced-repetition system. Easily add and sync your study materials across devices, track progress with detailed statistics, and review difficult items separately. It's designed for learning anything you need to remember.

**Highlights:** Spaced-repetition system, Quick card adding, iCloud sync across devices, Share extension for content import, Markdown support for formatting, Detailed progress statistics, Review difficult cards separately

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Unlock | $0.99 | per month |


### DNS & Whois Toolkit

[App page](https://appshunter.io/ios/app/dns-and-whois-toolkit/id6746719744)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memorize free?

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

### Is DNS & Whois Toolkit free?

DNS & Whois Toolkit is free to download, with no in-app purchases.

### Do Memorize or DNS & Whois Toolkit have ads?

Neither Memorize nor DNS & Whois Toolkit shows ads.

### Which is updated more often, Memorize or DNS & Whois Toolkit?

Memorize ships an update fortnightly, and DNS & Whois Toolkit fortnightly. Most recently, Memorize was updated on October 24, 2026 and DNS & Whois Toolkit on October 11, 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.*