# Ontrasys Pro vs アルコリーダーLite

The clearest difference is iOS requirement: Ontrasys Pro at 13.6 against アルコリーダーLite's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ontrasys Pro ships an update every 3 months, アルコリーダーLite every 4 months. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Ontrasys Pro | アルコリーダーLite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 17 MB | 45 MB |
| Requires iOS | **13.6** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TOPPAN PRINTING CO.,LTD.](https://appshunter.io/developer/373909233) | [ワム・システム・デザイン株式会社](https://appshunter.io/developer/959831357) |

## What reviewers say

### Ontrasys Pro

[App page](https://appshunter.io/ios/app/ontrasys-pro/id1486536359)

**Features:** macOS Compatibility

**In-app purchases:** none


### アルコリーダーLite

[App page](https://appshunter.io/ios/app/lite/id6736925304)

**In-app purchases:** none


## Frequently asked questions

### Is Ontrasys Pro free?

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

### Is アルコリーダーLite free?

アルコリーダーLite is free to download, with no in-app purchases.

### Do Ontrasys Pro or アルコリーダーLite have ads?

Neither Ontrasys Pro nor アルコリーダーLite shows ads.

### Which is updated more often, Ontrasys Pro or アルコリーダーLite?

Ontrasys Pro ships an update every 3 months, and アルコリーダーLite every 4 months. Most recently, Ontrasys Pro was updated on September 16, 2026 and アルコリーダーLite on September 18, 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.*