# Cello Instrument Tuner vs Oud Sim

The clearest difference is in-app purchases: Cello Instrument Tuner at none against Oud Sim's 1. Cello Instrument Tuner also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Oud Sim's advantage is update cadence (every 2 months vs every 22 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Oud Sim sells 1 one-off in-app purchase. Cello Instrument Tuner asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Cello Instrument Tuner against 5.0 for Oud Sim. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Cello Instrument Tuner ships an update every 22 months, Oud Sim every 2 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cello Instrument Tuner | Oud Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/cello-instrument-tuner/id6496863275/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/oud-sim/id6738432468/reviews) |
| Number of ratings | 3 | **4** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 74 MB | 206 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Himalay Diyora](https://appshunter.io/developer/1736716287) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### Cello Instrument Tuner

[App page](https://appshunter.io/ios/app/cello-instrument-tuner/id6496863275)

Master the cello with this comprehensive app. Access technique explanations, record practice sessions, explore artist profiles, and learn about cello history and instrument designs. Suitable for all skill levels.

**Highlights:** Alankar technique glossary, Audio recording and progress tracking, Cello artist profiles and insights, Instrument gallery and history, Beginner and expert guidance, Community engagement

**Features:** macOS Compatibility

**In-app purchases:** none


### Oud Sim

[App page](https://appshunter.io/ios/app/oud-sim/id6738432468)

Experience the authentic sounds of the oud with this feature-rich simulator. Explore four distinct instrument variations, advanced tuning and effects, and multiple play modes. Record and share your musical creations with a beautifully designed interface.

**Highlights:** Four unique oud sound options, Microtonal tuning, Echo and chorus effects, Sensitive play mode, Multiple play modes (Endless, Single Note, Multi-Play), Screen recording and sharing, User-friendly interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium | $9.99 | one-time |


## Frequently asked questions

### Is Cello Instrument Tuner free?

Cello Instrument Tuner is free to download, with no in-app purchases.

### Is Oud Sim free?

Oud Sim is free to download, with in-app purchases available.

### Which has better reviews, Cello Instrument Tuner or Oud Sim?

Cello Instrument Tuner and Oud Sim are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do Cello Instrument Tuner or Oud Sim have ads?

Oud Sim shows ads; Cello Instrument Tuner does not.

### Which is updated more often, Cello Instrument Tuner or Oud Sim?

Cello Instrument Tuner ships an update every 22 months, and Oud Sim every 2 months. Most recently, Cello Instrument Tuner was updated on November 4, 2026 and Oud Sim on October 30, 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.*