# Graylin vs Flex Agent AI

The clearest difference is ads: Graylin at none against Flex Agent AI's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Graylin sells 10 in-app purchases, starting at $34.99 per month and Flex Agent AI sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Graylin ships an update every 3 days, Flex Agent AI every 5 days. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Graylin | Flex Agent AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 42 MB | 53 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GRAYLIN AI (PTY) LTD](https://appshunter.io/developer/1872989548) | [Felipe Vieira](https://appshunter.io/developer/1743100643) |

## What reviewers say

### Graylin

[App page](https://appshunter.io/ios/app/graylin/id6759706980)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Graylin Starter | $34.99 | per month |
| Graylin Pro | $57.99 | per month |
| Graylin Team | $114.99 | per month |
| Graylin Starter Year | $219.99 | per year |
| Graylin Pro Year | $579.99 | per year |
| Graylin Team Year | $1000.00 | per year |
| 5 AI Credits | $5.99 | one-time |
| 10 AI Credits | $11.99 | one-time |
| 25 AI Credits | $29.99 | one-time |
| 50 AI Credits | $59.99 | one-time |


### Flex Agent AI

[App page](https://appshunter.io/ios/app/flex-agent-ai/id6761445395)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flex Agent AI Pro Monthly | $0.99 | per month |
| Flex Agent AI Pro Yearly | $9.99 | per year |


## Frequently asked questions

### Is Graylin free?

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

### Is Flex Agent AI free?

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

### Do Graylin or Flex Agent AI have ads?

Flex Agent AI shows ads; Graylin does not.

### Which is updated more often, Graylin or Flex Agent AI?

Graylin ships an update every 3 days, and Flex Agent AI every 5 days. Most recently, Graylin was updated on October 1, 2026 and Flex Agent AI on October 8, 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.*