# SonixScript vs Nitrify

The clearest difference is update cadence: SonixScript at fortnightly against Nitrify's every 6 weeks. SonixScript also leads on iOS requirement (17.4 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SonixScript sells 3 in-app purchases, starting at $1.99 per month and Nitrify sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SonixScript ships an update fortnightly, Nitrify every 6 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SonixScript | Nitrify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (37 ratings)](https://appshunter.io/ios/app/sonixscript-speech-to-text/id6499443596/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 2 MB |
| Requires iOS | **17.4** | 26.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chi shing Chan](https://appshunter.io/developer/1735100871) | [Charith Perera](https://appshunter.io/developer/1854264019) |

## What reviewers say

### SonixScript

[App page](https://appshunter.io/ios/app/sonixscript-speech-to-text/id6499443596)

Convert voice messages to text privately and offline, directly within your favorite apps. Supports over 32 languages and offers bulk conversion for enhanced productivity. All processing happens on your device.

**Highlights:** Voice message to text conversion, Supports 32+ languages, Bulk voice message conversion, Privacy-focused, on-device processing, Offline functionality, Fast, real-time transcription

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Lifetime Pro | $14.99 | one-time |
| Lifetime Deals | $14.99 | one-time |


### Nitrify

[App page](https://appshunter.io/ios/app/nitrify-aquarium-water-test/id6787839482)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nitrify Pro | $6.99 | one-time |


## Frequently asked questions

### Is SonixScript free?

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

### Is Nitrify free?

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

### Do SonixScript or Nitrify have ads?

Neither SonixScript nor Nitrify shows ads.

### Which is updated more often, SonixScript or Nitrify?

SonixScript ships an update fortnightly, and Nitrify every 6 weeks. Most recently, SonixScript was updated on October 30, 2026 and Nitrify on October 31, 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.*