# Duall Master vs Booking Office

Duall Master and Booking Office are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Duall Master ships an update fortnightly, Booking Office every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Duall Master | Booking Office |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/booking-office/id6448488594/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Free |
| Size | 78 MB | 48 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DUALi Inc.](https://appshunter.io/developer/1416508011) | [DANG HUNG LE](https://appshunter.io/developer/917229733) |

## What reviewers say

### Duall Master

[App page](https://appshunter.io/ios/app/duall-master/id1500403553)

**Features:** macOS Compatibility

**In-app purchases:** none


### Booking Office

[App page](https://appshunter.io/ios/app/booking-office/id6448488594)

This tool helps companies optimize meeting room usage by providing a clear view of room availability and reservation schedules. It allows users to create schedules, invite colleagues, and sync with Google Calendar for seamless planning. Gain insights into meeting room utilization to make informed decisions about resource allocation.

**Highlights:** View meeting room availability, Create and manage reservations, Invite team members, Google Calendar synchronization, Meeting room usage statistics, Organization-wide booking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duall Master free?

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

### Is Booking Office free?

Booking Office is free to download, with no in-app purchases.

### Do Duall Master or Booking Office have ads?

Neither Duall Master nor Booking Office shows ads.

### Which is updated more often, Duall Master or Booking Office?

Duall Master ships an update fortnightly, and Booking Office every 3 weeks. Most recently, Duall Master was updated on October 25, 2026 and Booking Office on October 24, 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.*