# Media Digital Source vs Zettelbox

The clearest difference is rating: Media Digital Source at 5.0 against Zettelbox's 4.2. Media Digital Source also leads on in-app purchases (none vs 3). Zettelbox's advantage is update cadence (every 2 weeks vs every 9 months) and ratings volume (25 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zettelbox sells 3 in-app purchases, starting at $4.99 per month. Media Digital Source asks for nothing beyond the download.

Media Digital Source holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Zettelbox has 25 ratings behind it against 1, so its average is the more settled of the two.

Media Digital Source ships an update every 9 months, Zettelbox every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Media Digital Source | Zettelbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/media-digital-source/id1525531397/reviews)** | [4.2 (25 ratings)](https://appshunter.io/ios/app/zettelbox-ai-note-taking/id1605557791/reviews) |
| Number of ratings | 1 | **25** |
| Positive reviews | — | 30.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 346 MB | 117 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Media Digital Source, LLC](https://appshunter.io/developer/1203279785) | [Hong Kong Source Research Society Supply Chain Limited](https://appshunter.io/developer/1761795867) |

## What reviewers say

### Media Digital Source

[App page](https://appshunter.io/ios/app/media-digital-source/id1525531397)

Automate follow-up campaigns to engage leads and capture responses across multiple channels. Manage your sales pipeline effectively on all devices with a comprehensive platform.

**Highlights:** Automated multi-channel follow-up campaigns, Lead response capture, Full-featured mobile communication, Integrated pipeline management, All-in-one platform

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Zettelbox

[App page](https://appshunter.io/ios/app/zettelbox-ai-note-taking/id1605557791)

Capture inspiration and organize your life with this app that integrates notes, to-dos, and scheduling. It helps transform scattered information into a structured knowledge base through smart review and related note linking. Enjoy secure local storage with optional cloud backups.

**Highlights:** Quick note capture with desktop widget, Intuitive tagging and nested categorization, Smart review to rediscover past thoughts, Link related notes for deeper understanding, Local encrypted storage, Cloud backup support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $4.99 | per month |
| Yearly Plan | $19.99 | per year |
| PowerPack Permanent | $64.99 | one-time |


## Frequently asked questions

### Is Media Digital Source free?

Media Digital Source is free to download, with no in-app purchases.

### Is Zettelbox free?

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

### Which has better reviews, Media Digital Source or Zettelbox?

Media Digital Source is rated higher. Media Digital Source averages 5.0 out of 5 from 1 ratings, while Zettelbox averages 4.2 from 25 ratings.

### Do Media Digital Source or Zettelbox have ads?

Neither Media Digital Source nor Zettelbox shows ads.

### Which is updated more often, Media Digital Source or Zettelbox?

Media Digital Source ships an update every 9 months, and Zettelbox every 2 weeks. Most recently, Media Digital Source was updated on November 3, 2026 and Zettelbox on November 3, 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.*