# Fello AI vs PromptVaultPro

Fello AI and PromptVaultPro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Fello AI sells 7 in-app purchases, starting at $4.99 per 7 days and PromptVaultPro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fello AI ships an update every 10 days, PromptVaultPro weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fello AI | PromptVaultPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (135 ratings)](https://appshunter.io/ios/app/fello-ai-chat-bot-assistant/id6447705369/reviews)** | — |
| Number of ratings | **135** | — |
| Positive reviews | 66.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Freemium | — |
| Size | 49 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [AI Apps Brewery s.r.o.](https://appshunter.io/developer/1538055054) | [Hao Sun](https://appshunter.io/developer/1896030287) |

## What reviewers say

### Fello AI

[App page](https://appshunter.io/ios/app/fello-ai-chat-bot-assistant/id6447705369)

This AI assistant integrates multiple advanced language and image models into a single application. It allows users to chat with files, generate documents, spreadsheets, presentations, and images, and search the web with cited sources. Available across Apple devices, it offers a free tier with limited messages and a subscription for unlimited access.

**Highlights:** Access multiple AI models in one app, Create .pptx, .xlsx, .docx, and .pdf files, Chat with files and images, Generate and edit AI images, Web search with cited sources, Syncs across Mac, iPhone, and iPad, Organized with pins and bookmarks

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Chatbot Weekly Plan | $4.99 | per 7 days |
| AI Chatbot Monthly Plan | $11.99 | per month |
| Fello AI Monthly Contribution | $11.99 | per month |
| AI Chatbot Monthly Plan | $11.99 | per month |
| AI Chatbot Quarterly Plan | $24.99 | per 3 months |
| AI Chatbot Yearly Plan | $89.99 | per year |
| AI Chatbot Yearly Plan | $89.99 | per year |


### PromptVaultPro

[App page](https://appshunter.io/ios/app/promptvaultpro/id6765668776)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PromptVault Premium | $5.99 | one-time |


## Frequently asked questions

### Is Fello AI free?

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

### Is PromptVaultPro free?

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

### Do Fello AI or PromptVaultPro have ads?

Neither Fello AI nor PromptVaultPro shows ads.

### Which is updated more often, Fello AI or PromptVaultPro?

Fello AI ships an update every 10 days, and PromptVaultPro weekly. Most recently, Fello AI was updated on October 30, 2026 and PromptVaultPro on October 25, 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.*