# AI Chatbot vs knowb4usign

The clearest difference is in-app purchases: knowb4usign at none against AI Chatbot's 20. knowb4usign also leads on rating (5.0 vs 4.6). AI Chatbot's advantage is ratings volume (14K vs 1) and chart position (#91 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AI Chatbot sells 15 in-app purchases, starting at $4.99 per 7 days. knowb4usign asks for nothing beyond the download.

knowb4usign holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: AI Chatbot has 14K ratings behind it against 1, so its average is the more settled of the two.

AI Chatbot ships an update weekly, knowb4usign every 2 weeks. The most recent releases landed on September 27, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | AI Chatbot | knowb4usign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (14K ratings)](https://appshunter.io/ios/app/ai-chatbot-pixi/id6499593159/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowb4usign/id6779456576/reviews)** |
| Number of ratings | **14K** | 1 |
| Positive reviews | 15.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#91** | — |
| Size | 117 MB | 23 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [44pixels](https://appshunter.io/developer/1743972891) | [Pexora LLC](https://appshunter.io/developer/6779456578) |

## What reviewers say

### AI Chatbot

[App page](https://appshunter.io/ios/app/ai-chatbot-pixi/id6499593159)

**Currently charting:** #91 Top Grossing · Productivity (US App Store)

This AI-powered app offers a suite of tools for writing, content creation, and task simplification. It leverages advanced AI models to generate images, logos, summaries, and assist with various writing needs. Users can also interact with AI expert assistants for advice and support.

**Highlights:** AI Writing Assistant, Text-to-Image Creation, Logo Studio, Document & PDF Summaries, YouTube Summaries, AI Expert Assistants

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per 7 days |
| Weekly Access | $6.99 | per 7 days |
| Weekly Access | $7.99 | per 7 days |
| Weekly Access | $7.99 | per 7 days |
| Weekly Access | $7.99 | per 7 days |
| Weekly Access | $9.99 | per 7 days |
| Monthly Access | $24.99 | per month |
| Yearly Access | $49.99 | per year |
| Yearly Access | $49.99 | per year |
| Yearly Access | $49.99 | per year |
| Yearly Access | $69.99 | per year |
| Yearly Access | $69.99 | per year |
| Yearly Access | $79.99 | per year |
| Yearly Access | $79.99 | per year |
| Lifetime Access | $99.99 | one-time |

**What reviewers like**

- 🚀 Great app
- 👍 Helpful for many tasks
- 🤖 Powerful AI capabilities
- 💡 Useful expert features

**What reviewers complain about**

- 🐛 Inconsistent performance
- 🤯 Frustrating user experience
- 💰 Subscription-only model
- 🤔 Misleading advertising

**Reported bugs**

- Incorrect spelling of names
- Inability to follow simple instructions
- Changing prompts unexpectedly
- Subscription issues and lack of refunds

**Requested features**

- More customization options
- Improved spelling and grammar
- Ability to make small edits
- Better support for different cultures


### knowb4usign

[App page](https://appshunter.io/ios/app/knowb4usign/id6779456576)

This app provides plain-English summaries of legal documents like contracts, leases, and terms of service. It breaks down complex clauses, highlights your obligations and rights, and assigns a risk score for quick understanding. Upload or scan documents for an instant AI review.

**Highlights:** Plain-English contract summaries, Clause-by-clause breakdown, Identification of obligations and rights, Risk assessment score, Document upload and camera scanning, AI-powered review, Follow-up question chat

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AI Chatbot free?

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

### Is knowb4usign free?

knowb4usign is free to download, with no in-app purchases.

### Which has better reviews, AI Chatbot or knowb4usign?

knowb4usign is rated higher. AI Chatbot averages 4.6 out of 5 from 14K ratings, while knowb4usign averages 5.0 from 1 ratings.

### Do AI Chatbot or knowb4usign have ads?

Neither AI Chatbot nor knowb4usign shows ads.

### Which is updated more often, AI Chatbot or knowb4usign?

AI Chatbot ships an update weekly, and knowb4usign every 2 weeks. Most recently, AI Chatbot was updated on September 27, 2026 and knowb4usign on September 13, 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.*