# AI Chatbot & Writer vs DocLib Vault

The clearest difference is ads: DocLib Vault at none against AI Chatbot & Writer's shown. DocLib Vault also leads on rating (5.0 vs 4.7). AI Chatbot & Writer's advantage is ratings volume (1.5K vs 2) and update cadence (monthly vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. AI Chatbot & Writer sells 3 in-app purchases, starting at $6.99 per 7 days 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 4.7. That said, the two scores are not equally well evidenced: AI Chatbot & Writer has 1.5K ratings behind it against 2, so its average is the more settled of the two.

AI Chatbot & Writer ships an update monthly, DocLib Vault every 3 months. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | AI Chatbot & Writer | DocLib Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.5K ratings)](https://appshunter.io/ios/app/ai-chatbot-and-writer-knowit/id6446508895/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/doclib-vault/id6760244845/reviews)** |
| Number of ratings | **1.5K** | 2 |
| Positive reviews | 86.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 34 MB | 216 MB |
| Requires iOS | **16.1** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Andrew Lee Ventures LLC](https://appshunter.io/developer/1650861387) | [Tyler Mattingly](https://appshunter.io/developer/1883438822) |

## What reviewers say

### AI Chatbot & Writer

[App page](https://appshunter.io/ios/app/ai-chatbot-and-writer-knowit/id6446508895)

This AI assistant leverages advanced language models to help users with a wide range of tasks. It can generate text, translate languages, fix grammar, brainstorm ideas, and even write code. Get personalized assistance for writing, learning, and creative projects.

**Highlights:** AI Chatbot Assistance, Text Generation & Editing, Language Translation, Code Writing, Content Summarization, Grammar & Typo Correction, Idea Brainstorming

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowItAll Weekly | $6.99 | per 7 days |
| KnowItAll Yearly: Discounted | $19.99 | per year |
| KnowItAll Yearly | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast and responsive
- 💡 Helpful AI assistant
- 🤖 Impressive natural language processing
- 🤝 Engaging and conversational experience

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔄 Limited to 50 questions per day
- 🔍 Some outdated or inaccurate information
- 💰 Paid version doesn't offer significant additional benefits

**Reported bugs**

- Compatibility issues on certain devices (e.g., Mac)
- Inconsistent performance or server overload

**Requested features**

- More customization options (e.g., dark mode)
- Expanded content coverage and up-to-date information
- Ability to use the AI assistant on other devices (e.g., keyboard integration)


### 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 AI Chatbot & Writer free?

AI Chatbot & Writer 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, AI Chatbot & Writer or DocLib Vault?

DocLib Vault is rated higher. AI Chatbot & Writer averages 4.7 out of 5 from 1.5K ratings, while DocLib Vault averages 5.0 from 2 ratings.

### Do AI Chatbot & Writer or DocLib Vault have ads?

AI Chatbot & Writer shows ads; DocLib Vault does not.

### Which is updated more often, AI Chatbot & Writer or DocLib Vault?

AI Chatbot & Writer ships an update monthly, and DocLib Vault every 3 months. Most recently, AI Chatbot & Writer was updated on October 22, 2026 and DocLib Vault on October 12, 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.*