# Deep Sleep Noise vs Autograph Identifier

The clearest difference is in-app purchases: Deep Sleep Noise at none against Autograph Identifier's 2. Autograph Identifier's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Autograph Identifier sells 2 in-app purchases, starting at $2.99 per 7 days. Deep Sleep Noise asks for nothing beyond the download.

Deep Sleep Noise ships an update every 5 months, Autograph Identifier every 5 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Deep Sleep Noise | Autograph Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/autograph-identifier-verify/id6761389644/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nina Lobadina](https://appshunter.io/developer/1875984972) | [Daniel Shtepu](https://appshunter.io/developer/1859046917) |

## What reviewers say

### Deep Sleep Noise

[App page](https://appshunter.io/ios/app/deep-sleep-noise/id6759221497)

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

**In-app purchases:** none


### Autograph Identifier

[App page](https://appshunter.io/ios/app/autograph-identifier-verify/id6761389644)

Instantly scan and analyze any autograph using AI technology. Identify signature details, check authenticity, and explore potential origins for collectibles and signed items. Get insights into value and handwriting patterns with this powerful tool.

**Highlights:** Scan autographs with camera or gallery, AI-powered signature recognition, Verify signature authenticity, Analyze handwriting patterns, Discover autograph origins, Explore autograph value insights

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $2.99 | per 7 days |
| Yearly Access | $25.99 | per year |


## Frequently asked questions

### Is Deep Sleep Noise free?

Deep Sleep Noise is free to download, with no in-app purchases.

### Is Autograph Identifier free?

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

### Do Deep Sleep Noise or Autograph Identifier have ads?

Deep Sleep Noise shows ads; Autograph Identifier does not.

### Which is updated more often, Deep Sleep Noise or Autograph Identifier?

Deep Sleep Noise ships an update every 5 months, and Autograph Identifier every 5 weeks. Most recently, Deep Sleep Noise was updated on October 31, 2026 and Autograph Identifier 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.*