# SureProof vs HumanizeAI

The clearest difference is iOS requirement: HumanizeAI at 13.4 against SureProof's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SureProof sells 10 in-app purchases, starting at $3.99 per 7 days and HumanizeAI sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 26, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SureProof | HumanizeAI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 26 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [4vor4 UG](https://appshunter.io/developer/1546718268) | [昱 曹](https://appshunter.io/developer/1780251572) |

## What reviewers say

### SureProof

[App page](https://appshunter.io/ios/app/sureproof-ai-detector/id6738951583)

Instantly detect AI-generated text and humanize it to ensure your writing is authentic and undetectable. This tool also includes plagiarism checking and readability analysis for polished content.

**Highlights:** AI Text Detector, AI Humanizer & Paraphrase Tool, Undetectable AI Output, Plagiarism Check, Text Reading Ease Evaluation, Scan History

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly SureProof+ Subscription | $3.99 | per 7 days |
| Weekly SureProof+ Subscription | $4.99 | per 7 days |
| Monthly SureProof Subscription | $6.99 | per month |
| Monthly SureProof Subscription | $9.99 | per month |
| Quarter SureProof Subscription | $14.99 | per 3 months |
| Quarter SureProof Subscription | $24.99 | per 3 months |
| Annual SureProof+ Subscription | $34.99 | per year |
| Annual SureProof+ Subscription | $59.99 | per year |
| Lifetime Pro Subscription | Free | one-time |
| Lifetime Pro Subscription | $79.99 | one-time |


### HumanizeAI

[App page](https://appshunter.io/ios/app/humanizeai-detect-and-humanize/id6739512886)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-time 1,000 words | $3.99 | one-time |
| One-time 10,000 words | $24.99 | one-time |


## Frequently asked questions

### Is SureProof free?

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

### Is HumanizeAI free?

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

### Do SureProof or HumanizeAI have ads?

Neither SureProof nor HumanizeAI shows ads.

### Which is updated more often, SureProof or HumanizeAI?

SureProof ships an update every 2 months, and HumanizeAI every 2 months. Most recently, SureProof was updated on October 26, 2026 and HumanizeAI on October 5, 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.*