# Odmaster vs CallBell

The clearest difference is review sentiment: CallBell at 78% against Odmaster's 29%. Odmaster's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 21 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Odmaster holds the better App Store score, 3.8 against 3.5. That said, the two scores are not equally well evidenced: Odmaster has 1.1K ratings behind it against 30, so its average is the more settled of the two. Written reviews complicate that: 29% of Odmaster's written reviews are positive against 78% of CallBell's, so the app with the better star average is not the one people write more warmly about.

Odmaster ships an update every 3 weeks, CallBell every 21 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Odmaster | CallBell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (1.1K ratings)](https://appshunter.io/ios/app/odmaster/id1512532413/reviews)** | [3.5 (30 ratings)](https://appshunter.io/ios/app/callbell/id1591673276/reviews) |
| Number of ratings | **1.1K** | 30 |
| Positive reviews | 28.5% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 21 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 96 MB | 18 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Guangzhou Billion Leiden Electronic Technology Co., Ltd.](https://appshunter.io/developer/1512532412) | [whitez](https://appshunter.io/developer/548591356) |

## What reviewers say

### Odmaster

[App page](https://appshunter.io/ios/app/odmaster/id1512532413)

This application allows users to program various radio models directly from their mobile phones, eliminating the need for a computer. It offers a convenient and portable solution for radio programming and includes a community feature for sharing content and interacting with other users.

**Highlights:** Program radio with mobile phone, Supports multiple radio models, Convenient and portable programming, Community sharing and interaction, Help Center and direct support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Convenient mobile programming
- 💡 Helpful community features

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Poor account registration process
- 🔋 High battery drain
- 👎 Unreliable Bluetooth connectivity

**Reported bugs**

- Unable to read or write radio data
- Inconsistent behavior across iOS versions
- Login and account issues

**Requested features**

- Support for more radio models
- Ability to save and load custom channel configurations
- Improved user interface and navigation


### CallBell

[App page](https://appshunter.io/ios/app/callbell/id1591673276)

Experience realistic sound effects with this app, featuring high-quality audio and visuals. Customize your experience with a dress-up function that changes sound effects based on themes. Explore augmented reality features for an enhanced simulation.

**Highlights:** Realistic call bell sound simulation, High image and sound quality, Refined 3D design, Dress-up function with themes, Augmented Reality support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Odmaster free?

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

### Is CallBell free?

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

### Which has better reviews, Odmaster or CallBell?

Odmaster is rated higher. Odmaster averages 3.8 out of 5 from 1.1K ratings, while CallBell averages 3.5 from 30 ratings.

### Do Odmaster or CallBell have ads?

CallBell shows ads; Odmaster does not.

### Which is updated more often, Odmaster or CallBell?

Odmaster ships an update every 3 weeks, and CallBell every 21 months. Most recently, Odmaster was updated on October 15, 2026 and CallBell on October 5, 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.*