# Sum AI vs Invenio

The clearest difference is rating: Invenio at 5.0 against Sum AI's 4.5. Invenio also leads on ads (none vs shown) and review sentiment (100% vs 76%). Sum AI's advantage is ratings volume (1.7K vs 4) and update cadence (every 3 weeks vs every 6 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Sum AI sells 13 in-app purchases, starting at $4.99 per 7 days and Invenio sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Invenio holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sum AI has 1.7K ratings behind it against 4, 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 100% of Invenio's.

Sum AI ships an update every 3 weeks, Invenio every 6 weeks. The most recent releases landed on October 20, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Sum AI | Invenio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (1.7K ratings)](https://appshunter.io/ios/app/sum-ai-speech-to-text-notes/id6451474307/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/invenio-search-by-transcript/id6498974299/reviews)** |
| Number of ratings | **1.7K** | 4 |
| Positive reviews | 76.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 190 MB | 4 MB |
| Requires iOS | **16.0** | 17 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [Something Dope Co, LLC](https://appshunter.io/developer/1155950659) |

## 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 (13)**

| 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 |
| Transcribe video. Summarizer | $9.99 | per 7 days |
| Summarizer: AI Trascript Tool | $14.99 | per month |
| Please, come back! | $14.99 | per year |
| Summarizer: AI Transcript tool | $19.99 | per month |
| Summarizer: AI Transcript Tool | $49.99 | per year |
| Summarizer: AI Transcript Tool | $99.99 | per year |
| 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


### Invenio

[App page](https://appshunter.io/ios/app/invenio-search-by-transcript/id6498974299)

Instantly find any YouTube video using spoken words from a clip. This AI-powered search engine scans over 1 billion video transcripts to locate content based on phrases you remember. Perfect for rediscovering lost clips or specific channel videos.

**Highlights:** Transcript-based video search, AI-powered search algorithm, Search over 1 billion YouTube videos, Filter by specific YouTube channels, Exact phrase searching with quotes, Locate videos from spoken words

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access Monthly | $4.99 | per month |
| All Access Yearly | $44.99 | per year |


## Frequently asked questions

### Is Sum AI free?

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

### Is Invenio free?

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

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

Invenio is rated higher. Sum AI averages 4.5 out of 5 from 1.7K ratings, while Invenio averages 5.0 from 4 ratings.

### Do Sum AI or Invenio have ads?

Sum AI shows ads; Invenio does not.

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

Sum AI ships an update every 3 weeks, and Invenio every 6 weeks. Most recently, Sum AI was updated on October 20, 2026 and Invenio on October 1, 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.*