# Cello Tuner vs CallBell

The clearest difference is rating: Cello Tuner at 3.9 against CallBell's 3.4. Cello Tuner also leads on monetization model (ad-supported vs free with in-app purchases) and ratings volume (252 vs 32). CallBell's advantage is review sentiment (78% vs 44%). 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.

Cello Tuner holds the better App Store score, 3.9 against 3.4. That said, the two scores are not equally well evidenced: Cello Tuner has 252 ratings behind it against 32, so its average is the more settled of the two. Written reviews complicate that: 44% of Cello Tuner'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.

Cello Tuner ships an update every 15 months, CallBell every 21 months. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Cello Tuner | CallBell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (252 ratings)](https://appshunter.io/ios/app/cello-tuner/id336370151/reviews)** | [3.4 (32 ratings)](https://appshunter.io/ios/app/callbell/id1591673276/reviews) |
| Number of ratings | **252** | 32 |
| Positive reviews | 43.8% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 15 months** | Every 21 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 36 MB | 18 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alvin Yu](https://appshunter.io/developer/310457194) | [whitez](https://appshunter.io/developer/548591356) |

## What reviewers say

### Cello Tuner

[App page](https://appshunter.io/ios/app/cello-tuner/id336370151)

This utility app provides accurate tuning notes for the cello, covering the standard C, G, D, and A strings. It's designed to help musicians quickly and easily achieve the correct pitch for their instrument.

**Highlights:** Plays tuning notes for cello, Supports C string tuning, Supports G string tuning, Supports D string tuning, Supports A string tuning

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy-to-use interface
- 🎵 Provides accurate reference tones for tuning
- 💰 Free app with no cost barrier
- 🚀 Fast and responsive when working
- 📱 Convenient portable alternative to physical tuners

**What reviewers complain about**

- 🔊 Poor sound quality and artificial tone
- 🎵 Doesn't sound like an actual cello
- 🐛 App frequently doesn't respond to button taps
- 📺 Excessive advertisements causing glitches
- ⏱️ Notes play for too short a duration

**Reported bugs**

- Buttons unresponsive to taps
- Screen stays blank when app is opened
- Sound glitches triggered by advertisements
- App crashes or fails to load
- Notes only play for 2 seconds

**Requested features**

- Longer note duration/sustain
- Better sound quality and more realistic cello tones
- Visual indicators showing if note is sharp or flat
- Ability to listen and analyze instrument input
- Increased volume output


### 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 Cello Tuner free?

Cello Tuner 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, Cello Tuner or CallBell?

Cello Tuner is rated higher. Cello Tuner averages 3.9 out of 5 from 252 ratings, while CallBell averages 3.4 from 32 ratings.

### Do Cello Tuner or CallBell have ads?

Both Cello Tuner and CallBell show ads.

### Which is updated more often, Cello Tuner or CallBell?

Cello Tuner ships an update every 15 months, and CallBell every 21 months. Most recently, Cello Tuner was updated on October 20, 2026 and CallBell on October 22, 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.*