# SAMI vs Transposer Pro

The clearest difference is price: SAMI at Free against Transposer Pro's $0.99. SAMI also leads on update cadence (every 3 months vs every 11 months). Transposer Pro's advantage is chart position (#194 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SAMI is free to download; Transposer Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SAMI ships an update every 3 months, Transposer Pro every 11 months. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SAMI | Transposer Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 11 months |
| Best chart rank | — | **#194** |
| Size | 34 MB | 3 MB |
| Requires iOS | **15.1** | 16.3 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [svenska artisters och musikers intresseorganisation](https://appshunter.io/developer/1682007332) | [Matt Welch](https://appshunter.io/developer/1693016625) |

## What reviewers say

### SAMI

[App page](https://appshunter.io/ios/app/sami/id6447618973)

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

**In-app purchases:** none


### Transposer Pro

[App page](https://appshunter.io/ios/app/transposer-pro/id6479720686)

**Currently charting:** #194 Top Paid · Music (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is SAMI free?

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

### Is Transposer Pro free?

Transposer Pro costs $0.99, with no in-app purchases.

### Do SAMI or Transposer Pro have ads?

Neither SAMI nor Transposer Pro shows ads.

### Which is updated more often, SAMI or Transposer Pro?

SAMI ships an update every 3 months, and Transposer Pro every 11 months. Most recently, SAMI was updated on September 8, 2026 and Transposer Pro on September 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.*