# Chunk vs CredentialingSpectrum

The clearest difference is in-app purchases: CredentialingSpectrum at none against Chunk's 10. CredentialingSpectrum also leads on iOS requirement (15.1 vs 18.4). Chunk's advantage is update cadence (fortnightly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Chunk sells 9 in-app purchases, starting at $4.99 per 7 days. CredentialingSpectrum asks for nothing beyond the download.

Chunk ships an update fortnightly, CredentialingSpectrum every 6 months. Both last shipped on November 8, 2026.

## The numbers

| Metric | Chunk | CredentialingSpectrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (33 ratings)](https://appshunter.io/ios/app/chunk-ai-notebook-and-research/id6472682763/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Freemium | — |
| Size | 198 MB | 19 MB |
| Requires iOS | 18.4 | **15.1** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Curious Minds Software, LLC](https://appshunter.io/developer/1686764894) | [Clinicspectrum, Inc.](https://appshunter.io/developer/932413384) |

## What reviewers say

### Chunk

[App page](https://appshunter.io/ios/app/chunk-ai-notebook-and-research/id6472682763)

This AI-powered workspace acts as your second brain, allowing you to chat with your documents, research, and notes using advanced AI models. It helps you save anything, ask anything, and automate tasks, transforming information into actionable insights and study materials.

**Highlights:** Chat with your documents and notes, Access multiple frontier AI models, Generate research reports with citations, Convert videos and web pages into study aids, Organize notes with backlinks and knowledge graph, Automate research and content digests, Create images with AI

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Chunk Subscription | $4.99 | per 7 days |
| Weekly Chunk AI Subscription | $4.99 | per 7 days |
| Weekly Subscription | $6.99 | per 7 days |
| Monthly Chunk Subscription | $9.99 | per month |
| Monthly Chunk AI Subscription | $9.99 | per month |
| Monthly Subscription | $14.99 | per month |
| Annual Chunk Subscription | $69.99 | per year |
| Annual Chunk Subscription | $69.99 | per year |
| Annual Chunk Subscription | $99.99 | per year |


### CredentialingSpectrum

[App page](https://appshunter.io/ios/app/credentialingspectrum/id6657982949)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chunk free?

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

### Is CredentialingSpectrum free?

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

### Do Chunk or CredentialingSpectrum have ads?

Neither Chunk nor CredentialingSpectrum shows ads.

### Which is updated more often, Chunk or CredentialingSpectrum?

Chunk ships an update fortnightly, and CredentialingSpectrum every 6 months. Most recently, Chunk was updated on November 8, 2026 and CredentialingSpectrum on November 8, 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.*