# IPPA Link vs Cello Key

The clearest difference is rating: IPPA Link at 5.0 against Cello Key's 3.5. IPPA Link also leads on in-app purchases (none vs 1) and ads (none vs shown). Cello Key's advantage is update cadence (every 6 months vs every 26 months). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Cello Key sells 1 one-off in-app purchase. IPPA Link asks for nothing beyond the download.

IPPA Link holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

IPPA Link ships an update every 26 months, Cello Key every 6 months. The most recent releases landed on August 22, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | IPPA Link | Cello Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ippa-link/id1616626546/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/cello-key/id6449323913/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 6 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 68 MB | 61 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [International Panel Physicians Association Inc](https://appshunter.io/developer/1354669108) | [Yuriko Kimura](https://appshunter.io/developer/1437608412) |

## What reviewers say

### IPPA Link

[App page](https://appshunter.io/ios/app/ippa-link/id1616626546)

This app provides a comprehensive digital platform for immigration medical examination providers. It offers training courses, educational resources, and practical tools to support panel physicians and civil surgeons. Stay updated with essential information for immigration medical exams.

**Highlights:** Digital training courses, Educational resources, Practical tools for providers, Updates on Technical Instructions, Accessibility for IME providers

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

**In-app purchases:** none


### Cello Key

[App page](https://appshunter.io/ios/app/cello-key/id6449323913)

This app provides a simple fingerboard chart for cello learners, helping them identify notes, positions, and fingerings. It's designed for easy reference anywhere, especially useful for sheet music without finger numbers. It's particularly recommended for adult beginners.

**Highlights:** Fingerboard chart for cello, Note identification, Position guidance, Finger number reference, Simple and easy to read layout, Portable reference tool

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Natural Minor Scales Pack | $1.99 | one-time |


## Frequently asked questions

### Is IPPA Link free?

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

### Is Cello Key free?

Cello Key is free to download, with in-app purchases available.

### Which has better reviews, IPPA Link or Cello Key?

IPPA Link is rated higher. IPPA Link averages 5.0 out of 5 from 1 ratings, while Cello Key averages 3.5 from 2 ratings.

### Do IPPA Link or Cello Key have ads?

Cello Key shows ads; IPPA Link does not.

### Which is updated more often, IPPA Link or Cello Key?

IPPA Link ships an update every 26 months, and Cello Key every 6 months. Most recently, IPPA Link was updated on August 22, 2026 and Cello Key on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*