# Kai vs MaxBob AI

The clearest difference is in-app purchases: MaxBob AI at none against Kai's 4. MaxBob AI also leads on update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Kai sells 4 in-app purchases, starting at $4.99 per 7 days. MaxBob AI asks for nothing beyond the download.

Kai ships an update every 3 weeks, MaxBob AI daily. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Kai | MaxBob AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/kai-ai-tutor-and-study-helper/id6449159918/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Freemium | — |
| Size | 44 MB | 16 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Tiny Leo Co., Ltd](https://appshunter.io/developer/1660777736) | [Elena Paredes](https://appshunter.io/developer/1882858593) |

## What reviewers say

### Kai

[App page](https://appshunter.io/ios/app/kai-ai-tutor-and-study-helper/id6449159918)

This AI-powered assistant offers 24/7 support for studying, working, and creating. Get instant answers, step-by-step solutions, and generate images with advanced GPT models. It helps with homework, brainstorming, and daily tasks.

**Highlights:** Instant AI-powered answers, 24/7 homework assistance, AI image generation, Image upload analysis, Brainstorming and idea generation, Task organization and reminders

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Weekly Trial | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |
| Lifetime Premium | $39.99 | one-time |


### MaxBob AI

[App page](https://appshunter.io/ios/app/maxbob-ai/id6760142916)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kai free?

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

### Is MaxBob AI free?

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

### Do Kai or MaxBob AI have ads?

Neither Kai nor MaxBob AI shows ads.

### Which is updated more often, Kai or MaxBob AI?

Kai ships an update every 3 weeks, and MaxBob AI daily. Most recently, Kai was updated on November 3, 2026 and MaxBob AI on November 9, 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.*