# ThinkByte vs DocLib Vault

The clearest difference is rating: DocLib Vault at 5.0 against ThinkByte's 4.2. ThinkByte's advantage is ratings volume (12 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ThinkByte sells 1 one-off in-app purchase and DocLib Vault sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

DocLib Vault holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: ThinkByte has 12 ratings behind it against 2, so its average is the more settled of the two.

ThinkByte ships an update fortnightly, DocLib Vault every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | ThinkByte | DocLib Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (12 ratings)](https://appshunter.io/ios/app/thinkbyte-offline-local-ai/id6746089787/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/doclib-vault/id6760244845/reviews)** |
| Number of ratings | **12** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 64 MB | 216 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ByteInk L.L.C-FZ](https://appshunter.io/developer/1765895279) | [Tyler Mattingly](https://appshunter.io/developer/1883438822) |

## What reviewers say

### ThinkByte

[App page](https://appshunter.io/ios/app/thinkbyte-offline-local-ai/id6746089787)

This AI assistant operates entirely on your device, offering private and fast responses without internet access. It's ideal for brainstorming, learning, and getting writing support, ensuring your data remains secure and local.

**Highlights:** Fully offline AI operation, Private and secure on-device data, Instant AI responses, Choice of local AI models, Writing and learning support, No accounts or tracking

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $9.99 | one-time |


### DocLib Vault

[App page](https://appshunter.io/ios/app/doclib-vault/id6760244845)

Securely store and organize photos, videos, documents, and notes locally on your device. Offers robust import options, advanced file management, and built-in viewers for various media types. Pro version unlocks deeper features like OCR and enhanced multi-play.

**Highlights:** Local-first private vault, Import from multiple sources, Folder and tag organization, Built-in viewers for various file types, Markdown and PDF editing, Encrypted backup and restore, Passcode and Face ID protection

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DocLib Pro Monthly | $2.99 | per month |
| DocLib Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is ThinkByte free?

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

### Is DocLib Vault free?

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

### Which has better reviews, ThinkByte or DocLib Vault?

DocLib Vault is rated higher. ThinkByte averages 4.2 out of 5 from 12 ratings, while DocLib Vault averages 5.0 from 2 ratings.

### Do ThinkByte or DocLib Vault have ads?

Neither ThinkByte nor DocLib Vault shows ads.

### Which is updated more often, ThinkByte or DocLib Vault?

ThinkByte ships an update fortnightly, and DocLib Vault every 3 weeks. Most recently, ThinkByte was updated on October 24, 2026 and DocLib Vault on October 24, 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.*