# Sum AI vs SonixScript

The clearest difference is review sentiment: Sum AI at 76% against SonixScript's 33%. Sum AI also leads on ratings volume (1.7K vs 37) and rating (4.5 vs 4.2). SonixScript's advantage is ads (none vs shown). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sum AI sells 9 in-app purchases, starting at $4.99 per 7 days and SonixScript sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sum AI holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Sum AI has 1.7K ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 76% of Sum AI's written reviews are positive against 33% of SonixScript's.

Sum AI ships an update every 3 weeks, SonixScript fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sum AI | SonixScript |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.7K ratings)](https://appshunter.io/ios/app/sum-ai-speech-to-text-notes/id6451474307/reviews)** | [4.2 (37 ratings)](https://appshunter.io/ios/app/sonixscript-speech-to-text/id6499443596/reviews) |
| Number of ratings | **1.7K** | 37 |
| Positive reviews | **76.4% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 190 MB | 36 MB |
| Requires iOS | **16.0** | 17.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [Chi shing Chan](https://appshunter.io/developer/1735100871) |

## What reviewers say

### Sum AI

[App page](https://appshunter.io/ios/app/sum-ai-speech-to-text-notes/id6451474307)

This app converts audio and video recordings into text transcriptions and concise summaries. It leverages advanced AI to extract key points and actionable items, saving users time on manual note-taking and review. Ideal for students, professionals, and content creators needing to quickly process spoken information.

**Highlights:** GPT-powered audio/video to text conversion, Quick summarizing, Transcribe YouTube links, Extract key points and tasks, Fast, shareable transcripts, User-friendly interface

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Summarizer: AI Trascript Tool | $4.99 | per 7 days |
| Unlimited Access | $5.99 | per 7 days |
| Summarizer Pro | $5.99 | per 7 days |
| Summarizer Pro | $5.99 | per 7 days |
| Summarizer Pro | $9.99 | per 7 days |
| Transcribe video. Summarizer | $9.99 | per 7 days |
| Summarizer: AI Trascript Tool | $14.99 | per month |
| Summarizer: AI Transcript tool | $19.99 | per month |
| Summarizer: AI transcript tool | $99.99 | per year |

**What reviewers like**

- 🚀 Quick and efficient transcription
- 👍 Accurate and reliable
- ⚙️ Useful features like summaries and key points
- 🌍 Supports multiple languages

**What reviewers complain about**

- 💰 Expensive subscription
- 🐛 Occasional issues with uploads and recordings
- ⏱️ Slow processing times for longer files
- 🔒 Privacy concerns around data usage

**Reported bugs**

- Recordings being lost or not transcribed
- Transcription errors and inaccuracies
- Freezing and crashing issues
- Subscription cancellation problems

**Requested features**

- Real-time transcription capability
- Ability to save and access past recordings
- More affordable pricing options
- Improved user interface and navigation


### 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 |


## Frequently asked questions

### Is Sum AI free?

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

### Is SonixScript free?

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

### Which has better reviews, Sum AI or SonixScript?

Sum AI is rated higher. Sum AI averages 4.5 out of 5 from 1.7K ratings, while SonixScript averages 4.2 from 37 ratings.

### Do Sum AI or SonixScript have ads?

Sum AI shows ads; SonixScript does not.

### Which is updated more often, Sum AI or SonixScript?

Sum AI ships an update every 3 weeks, and SonixScript fortnightly. Most recently, Sum AI was updated on November 3, 2026 and SonixScript on October 30, 2026.

---

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