# Scent Master Pro vs PDF Ready

The clearest difference is iOS requirement: Scent Master Pro at 13.0 against PDF Ready's 17.0. 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.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Scent Master Pro | PDF Ready |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/scent-master-pro/id6499073832/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 180 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [兵 姚](https://appshunter.io/developer/1546606210) | [Naoki Hotta](https://appshunter.io/developer/1791360765) |

## What reviewers say

### Scent Master Pro

[App page](https://appshunter.io/ios/app/scent-master-pro/id6499073832)

This intelligent fragrance management app allows real-time monitoring and remote control of connected devices. Users can customize working modes, set schedules, and track oil levels for a seamless experience.

**Highlights:** Remote device control, Custom working modes, Real-time oil level monitoring, Intelligent usage calibration, Device sharing management, Scheduled operation

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Ready

[App page](https://appshunter.io/ios/app/pdf-ready/id6787268098)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scent Master Pro free?

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

### Is PDF Ready free?

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

### Do Scent Master Pro or PDF Ready have ads?

Neither Scent Master Pro nor PDF Ready shows ads.

### Which is updated more often, Scent Master Pro or PDF Ready?

Scent Master Pro ships an update fortnightly, and PDF Ready fortnightly. Most recently, Scent Master Pro was updated on October 20, 2026 and PDF Ready on October 12, 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.*