# ConvertCenter vs Murmur Keyboard

The clearest difference is rating: ConvertCenter at 5.0 against Murmur Keyboard's 3.0. Murmur Keyboard's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence 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.

ConvertCenter holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

ConvertCenter ships an update every 3 days, Murmur Keyboard every 5 days. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ConvertCenter | Murmur Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/convertcenter/id6759354583/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/murmur-keyboard-ai-powered/id6761157714/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Ad-supported | **Free** |
| Size | 5 MB | 3 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Martha G Korra](https://appshunter.io/developer/1850850935) | [John Wang](https://appshunter.io/developer/1888061643) |

## What reviewers say

### ConvertCenter

[App page](https://appshunter.io/ios/app/convertcenter/id6759354583)

This app offers tools to convert files between over 20 formats and resize or compress them efficiently. All processing occurs on your device, ensuring complete privacy and offline functionality. Optimize files for email, cloud storage, or social media with ease.

**Highlights:** Convert over 20 file formats, Resize and compress files up to 90%, Offline processing for complete privacy, Preview files before saving, Fast conversion with quality preservation, Supports images, documents, and audio

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

**In-app purchases:** none


### Murmur Keyboard

[App page](https://appshunter.io/ios/app/murmur-keyboard-ai-powered/id6761157714)

This app converts your voice to text using advanced AI, all processed locally on your device for maximum privacy. It functions as a standalone application or a keyboard extension, allowing seamless dictation across any app without internet connectivity.

**Highlights:** 100% on-device transcription, Offline functionality, Custom keyboard for any app, Smart warm/cold engine, Dark mode support, Transcription history

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

**In-app purchases:** none


## Frequently asked questions

### Is ConvertCenter free?

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

### Is Murmur Keyboard free?

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

### Which has better reviews, ConvertCenter or Murmur Keyboard?

ConvertCenter is rated higher. ConvertCenter averages 5.0 out of 5 from 1 ratings, while Murmur Keyboard averages 3.0 from 2 ratings.

### Do ConvertCenter or Murmur Keyboard have ads?

ConvertCenter shows ads; Murmur Keyboard does not.

### Which is updated more often, ConvertCenter or Murmur Keyboard?

ConvertCenter ships an update every 3 days, and Murmur Keyboard every 5 days. Most recently, ConvertCenter was updated on October 15, 2026 and Murmur Keyboard 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.*