# Index vs SumAI

The clearest difference is in-app purchases: Index at none against SumAI's 2. SumAI's advantage is update cadence (every 6 days vs every 15 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SumAI sells 2 in-app purchases, starting at $2.99 per 7 days. Index asks for nothing beyond the download.

Index ships an update every 15 months, SumAI every 6 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Index | SumAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/sumai-video-summarize-and-notes/id6737724788/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 35 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Joseph Thom](https://appshunter.io/developer/1634212474) | [MEVLUT CIFCIBASI](https://appshunter.io/developer/1777615129) |

## What reviewers say

### Index

[App page](https://appshunter.io/ios/app/index/id1634212472)

**In-app purchases:** none


### SumAI

[App page](https://appshunter.io/ios/app/sumai-video-summarize-and-notes/id6737724788)

This app transforms YouTube videos into concise summaries, saving you time and enhancing your learning. It offers AI-powered key point extraction, custom quiz generation, and automatic flashcard creation for efficient revision. Ideal for students and professionals seeking to learn faster from video content.

**Highlights:** Instant video summaries, AI key point extraction, Custom quiz creation, Automatic flashcard generation, Learning progress tracking, Offline summary access

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Index free?

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

### Is SumAI free?

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

### Do Index or SumAI have ads?

Neither Index nor SumAI shows ads.

### Which is updated more often, Index or SumAI?

Index ships an update every 15 months, and SumAI every 6 days. Most recently, Index was updated on November 7, 2026 and SumAI on November 10, 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.*