# OTA Practice Test Pro vs LabNote Chem

The clearest difference is iOS requirement: OTA Practice Test Pro at 13.0 against LabNote Chem's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. OTA Practice Test Pro sells 1 one-off in-app purchase and LabNote Chem sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

OTA Practice Test Pro ships an update every 3 weeks, LabNote Chem monthly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | OTA Practice Test Pro | LabNote Chem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 47 MB | 118 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [3328833 Nova Scotia Limited](https://appshunter.io/developer/1757830011) | [Satoshi Kobayashi](https://appshunter.io/developer/1866585930) |

## What reviewers say

### OTA Practice Test Pro

[App page](https://appshunter.io/ios/app/ota-practice-test-pro/id6740814313)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $9.99 | one-time |


### LabNote Chem

[App page](https://appshunter.io/ios/app/labnote-chem/id6757393090)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LabNote Chem Pro | $11.99 | one-time |


## Frequently asked questions

### Is OTA Practice Test Pro free?

OTA Practice Test Pro is free to download, with in-app purchases available.

### Is LabNote Chem free?

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

### Do OTA Practice Test Pro or LabNote Chem have ads?

Neither OTA Practice Test Pro nor LabNote Chem shows ads.

### Which is updated more often, OTA Practice Test Pro or LabNote Chem?

OTA Practice Test Pro ships an update every 3 weeks, and LabNote Chem monthly. Most recently, OTA Practice Test Pro was updated on October 7, 2026 and LabNote Chem on October 5, 2026.

---

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