# Professor vs Chat Go AI

Professor and Chat Go AI are too close to call on the numbers: across 5 compared parameters — price, update cadence, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Professor sells 3 one-off in-app purchases and Chat Go AI sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Professor ships an update every 6 weeks, Chat Go AI every 4 weeks. Both last shipped on November 7, 2026.

## The numbers

| Metric | Professor | Chat Go AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Size | 21 MB | 83 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Dmitrii Sokolov](https://appshunter.io/developer/1595940403) | [Pavlo Stupak](https://appshunter.io/developer/1685492130) |

## What reviewers say

### Professor

[App page](https://appshunter.io/ios/app/professor-ai-chatbot/id1664943029)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $1.99 | one-time |
| 6 months | $6.99 | one-time |
| 1 year | $10.99 | one-time |


### Chat Go AI

[App page](https://appshunter.io/ios/app/chat-go-ai/id6448667381)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $9.99 | per 7 days |
| Monthly Pro Tariff | $24.99 | per month |
| Yearly Pro Tariff | $89.99 | per year |


## Frequently asked questions

### Is Professor free?

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

### Is Chat Go AI free?

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

### Which is updated more often, Professor or Chat Go AI?

Professor ships an update every 6 weeks, and Chat Go AI every 4 weeks. Most recently, Professor was updated on November 7, 2026 and Chat Go AI on November 7, 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.*