# Humanize AI vs Sleipnir Grade

The clearest difference is in-app purchases: Sleipnir Grade at none against Humanize AI's 4. Sleipnir Grade also leads on ads (none vs shown). Humanize AI's advantage is device support (4 vs 1) and iOS requirement (15.6 vs 17.6). On price and update cadence there is nothing between them.

Both are free to download. Humanize AI sells 4 in-app purchases, starting at $3.99 per 7 days. Sleipnir Grade asks for nothing beyond the download.

Humanize AI ships an update monthly, Sleipnir Grade every 2 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Humanize AI | Sleipnir Grade |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Size | 42 MB | 8 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Ashhad Ali](https://appshunter.io/developer/1812282235) | [Luis Alfredo Godoy Alvarez](https://appshunter.io/developer/1858618621) |

## What reviewers say

### Humanize AI

[App page](https://appshunter.io/ios/app/humanize-ai-paraphrase-text/id6753912938)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Monthly Premium | $6.99 | per month |
| Yearly Premium | $19.99 | per year |
| Lifetime access | $39.99 | one-time |


### Sleipnir Grade

[App page](https://appshunter.io/ios/app/sleipnir-grade/id6756126774)

**In-app purchases:** none


## Frequently asked questions

### Is Humanize AI free?

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

### Is Sleipnir Grade free?

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

### Do Humanize AI or Sleipnir Grade have ads?

Humanize AI shows ads; Sleipnir Grade does not.

### Which is updated more often, Humanize AI or Sleipnir Grade?

Humanize AI ships an update monthly, and Sleipnir Grade every 2 months. Most recently, Humanize AI was updated on October 2, 2026 and Sleipnir Grade 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.*