# UBooking vs Onis Service

The clearest difference is update cadence: UBooking at every 4 months against Onis Service's every 12 months. UBooking also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

UBooking ships an update every 4 months, Onis Service every 12 months. The most recent releases landed on September 6, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | UBooking | Onis Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onis-service/id6737501959/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | — | Free |
| Size | 30 MB | 12 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tuvshintulga Lkhagva-Erdene](https://appshunter.io/developer/1774230506) | [Datacare LLC](https://appshunter.io/developer/1220811353) |

## What reviewers say

### UBooking

[App page](https://appshunter.io/ios/app/ubooking/id6736984132)

**In-app purchases:** none


### Onis Service

[App page](https://appshunter.io/ios/app/onis-service/id6737501959)

A simple appointment booking system designed for various services and businesses. It streamlines the process of scheduling appointments, making it easier for both service providers and clients.

**Highlights:** Appointment scheduling, Service provider management, Client booking, Business management, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UBooking free?

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

### Is Onis Service free?

Onis Service is free to download, with no in-app purchases.

### Do UBooking or Onis Service have ads?

Neither UBooking nor Onis Service shows ads.

### Which is updated more often, UBooking or Onis Service?

UBooking ships an update every 4 months, and Onis Service every 12 months. Most recently, UBooking was updated on September 6, 2026 and Onis Service on June 1, 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.*