# Leaf vs AI Agent Builder

The clearest difference is price: Leaf at Free against AI Agent Builder's $2.99. AI Agent Builder's advantage is update cadence (every 10 days vs every 3 months) and iOS requirement (17.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Leaf is free to download; AI Agent Builder costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Leaf ships an update every 3 months, AI Agent Builder every 10 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Leaf | AI Agent Builder |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 7 MB | 6 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Big Numbers, Inc.](https://appshunter.io/developer/1806217941) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### Leaf

[App page](https://appshunter.io/ios/app/leaf-eco-ai-chat/id6757168284)

**In-app purchases:** none


### AI Agent Builder

[App page](https://appshunter.io/ios/app/ai-agent-builder-create-agent/id6762403953)

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

**In-app purchases:** none


## Frequently asked questions

### Is Leaf free?

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

### Is AI Agent Builder free?

AI Agent Builder costs $2.99, with no in-app purchases.

### Do Leaf or AI Agent Builder have ads?

Neither Leaf nor AI Agent Builder shows ads.

### Which is updated more often, Leaf or AI Agent Builder?

Leaf ships an update every 3 months, and AI Agent Builder every 10 days. Most recently, Leaf was updated on November 9, 2026 and AI Agent Builder on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*