# Quantitative QiMen 奇門 vs Leaf Identification

The clearest difference is price: Leaf Identification at Free against Quantitative QiMen 奇門's $129.99. Leaf Identification also leads on update cadence (fortnightly vs every 3 months). Quantitative QiMen 奇門's advantage is in-app purchases (none vs 3) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.

Leaf Identification is free to download; Quantitative QiMen 奇門 costs $129.99 up front. Leaf Identification sells 3 in-app purchases, starting at $2.99 per 7 days. Quantitative QiMen 奇門 asks for nothing beyond the download.

Quantitative QiMen 奇門 ships an update every 3 months, Leaf Identification fortnightly. The most recent releases landed on November 7, 2026 and November 14, 2026 respectively.

## The numbers

| Metric | Quantitative QiMen 奇門 | Leaf Identification |
| --- | --- | --- |
| Price | $129.99 | **Free** |
| Rating | — | **[4.8 (1.4K ratings)](https://appshunter.io/ios/app/leaf-identification/id1590796628/reviews)** |
| Number of ratings | — | **1.4K** |
| Positive reviews | — | 33.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 16 MB | 396 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Djauhery .](https://appshunter.io/developer/1510896841) | [Le Giang Nam](https://appshunter.io/developer/1588693429) |

## What reviewers say

### Quantitative QiMen 奇門

[App page](https://appshunter.io/ios/app/quantitative-qimen/id1510896842)

**In-app purchases:** none


### Leaf Identification

[App page](https://appshunter.io/ios/app/leaf-identification/id1590796628)

Instantly identify plants, flowers, and trees by taking a photo. This AI-powered app recognizes over 20,000 species with high accuracy, even offline. It's perfect for nature lovers, gardeners, and families wanting to learn more about the plant world.

**Highlights:** AI plant scanner, Identify flowers, trees, and herbs, Offline identification, Large plant database, Identification history, Plant recognition by genus/family

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leaf ID Pro | $2.99 | per 7 days |
| Leaf ID Pro | $29.99 | per year |
| Leaf ID Pro Lifetime | $69.99 | one-time |

**What reviewers like**

- ⭐ Accurate plant identification
- 📚 Provides useful plant information
- 🔍 Helpful visual examples

**What reviewers complain about**

- 💰 Paywall/subscription required
- 🔁 Scanning loop issue
- ❌ Incorrect plant identification

**Reported bugs**

- App crashes frequently
- Stuck in scanning loop with no way to exit

**Requested features**

- Ability to add notes to saved plants
- Offline functionality


## Frequently asked questions

### Is Quantitative QiMen 奇門 free?

Quantitative QiMen 奇門 costs $129.99, with no in-app purchases.

### Is Leaf Identification free?

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

### Do Quantitative QiMen 奇門 or Leaf Identification have ads?

Neither Quantitative QiMen 奇門 nor Leaf Identification shows ads.

### Which is updated more often, Quantitative QiMen 奇門 or Leaf Identification?

Quantitative QiMen 奇門 ships an update every 3 months, and Leaf Identification fortnightly. Most recently, Quantitative QiMen 奇門 was updated on November 7, 2026 and Leaf Identification on November 14, 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.*