# Contract Lab vs NoteDri

The clearest difference is in-app purchases: Contract Lab at none against NoteDri's 1. Contract Lab also leads on ads (none vs shown). NoteDri's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. NoteDri sells 1 one-off in-app purchase. Contract Lab asks for nothing beyond the download.

Contract Lab ships an update every 4 days, NoteDri weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Contract Lab | NoteDri |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Size | 80 MB | 108 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [奇 林](https://appshunter.io/developer/1896582109) | [LUONG SANG NGUYEN](https://appshunter.io/developer/6801801312) |

## What reviewers say

### Contract Lab

[App page](https://appshunter.io/ios/app/contract-lab/id6768622992)

**Features:** iPhone Duo support

**In-app purchases:** none


### NoteDri

[App page](https://appshunter.io/ios/app/notedri-quan-ly-xe-thong-minh/id6801801310)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $3.99 | one-time |


## Frequently asked questions

### Is Contract Lab free?

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

### Is NoteDri free?

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

### Do Contract Lab or NoteDri have ads?

NoteDri shows ads; Contract Lab does not.

### Which is updated more often, Contract Lab or NoteDri?

Contract Lab ships an update every 4 days, and NoteDri weekly. Most recently, Contract Lab was updated on October 31, 2026 and NoteDri on October 31, 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.*