# Keiser Converter Updater vs Supernote Partner

The clearest difference is update cadence: Keiser Converter Updater at weekly against Supernote Partner's every 4 months. Keiser Converter Updater also leads on iOS requirement (8.0 vs 15.6). Supernote Partner's advantage is rating (2.8 vs 2.5) and review sentiment (41% vs 30%). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Supernote Partner holds the better App Store score, 2.8 against 2.5. That said, the two scores are not equally well evidenced: Supernote Partner has 92 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 30% of Keiser Converter Updater's written reviews are positive against 41% of Supernote Partner's.

Keiser Converter Updater ships an update weekly, Supernote Partner every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Keiser Converter Updater | Supernote Partner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (13 ratings)](https://appshunter.io/ios/app/keiser-converter-updater/id1471178615/reviews) | **[2.8 (92 ratings)](https://appshunter.io/ios/app/supernote-partner/id1494992020/reviews)** |
| Number of ratings | 13 | **92** |
| Positive reviews | 30.0% of reviews | **41.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Free | Free |
| Size | 38 MB | 386 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Keiser Corp.](https://appshunter.io/developer/1094598974) | [RATTA (US) INC](https://appshunter.io/developer/1765507042) |

## What reviewers say

### Keiser Converter Updater

[App page](https://appshunter.io/ios/app/keiser-converter-updater/id1471178615)

This utility app allows users to wirelessly update the firmware on their Keiser M Series Converter. Updating ensures improved battery life, new features, and enhanced stability for the device.

**Highlights:** Wireless firmware updates, Improves battery life, Adds new features, Enhances stability, User-friendly instructions

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

**In-app purchases:** none


### Supernote Partner

[App page](https://appshunter.io/ios/app/supernote-partner/id1494992020)

Access and manage your notes and documents across all your devices. This app facilitates easy sharing of your work and helps you stay organized with synced to-do lists. It provides a cohesive digital note-taking experience as a companion to your device.

**Highlights:** Automatic synchronization across devices, Easy sharing of notes and documents, Task management and to-do lists, Cohesive digital note-taking experience

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Keiser Converter Updater free?

Keiser Converter Updater is free to download, with no in-app purchases.

### Is Supernote Partner free?

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

### Which has better reviews, Keiser Converter Updater or Supernote Partner?

Supernote Partner is rated higher. Keiser Converter Updater averages 2.5 out of 5 from 13 ratings, while Supernote Partner averages 2.8 from 92 ratings.

### Do Keiser Converter Updater or Supernote Partner have ads?

Neither Keiser Converter Updater nor Supernote Partner shows ads.

### Which is updated more often, Keiser Converter Updater or Supernote Partner?

Keiser Converter Updater ships an update weekly, and Supernote Partner every 4 months. Most recently, Keiser Converter Updater was updated on October 21, 2026 and Supernote Partner on October 24, 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.*