# Echo AI vs PDF Maker

The clearest difference is update cadence: Echo AI at every 4 weeks against PDF Maker's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Echo AI sells 4 in-app purchases, starting at $7.99 per 7 days and PDF Maker sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Echo AI ships an update every 4 weeks, PDF Maker every 2 months. Both last shipped on November 4, 2026.

## The numbers

| Metric | Echo AI | PDF Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 106 MB | 44 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FOCUS STUDIOS](https://appshunter.io/developer/1704656486) | [veysel yesilmen](https://appshunter.io/developer/1801211273) |

## What reviewers say

### Echo AI

[App page](https://appshunter.io/ios/app/echo-ai-create-meeting-notes/id6692618044)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $7.99 | per 7 days |
| Annual Plan | $12.99 | per year |
| Monthly Plan | $24.99 | per month |
| Annual Plan | $69.99 | per year |


### PDF Maker

[App page](https://appshunter.io/ios/app/pdf-maker-document-scanner/id6794086744)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Maker Weekly | $6.99 | per 7 days |
| PDF Maker Premium Weekly | $6.99 | per 7 days |
| PDF Maker Yearly | $29.99 | per year |
| Get Premium Access | $34.99 | per year |


## Frequently asked questions

### Is Echo AI free?

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

### Is PDF Maker free?

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

### Do Echo AI or PDF Maker have ads?

Neither Echo AI nor PDF Maker shows ads.

### Which is updated more often, Echo AI or PDF Maker?

Echo AI ships an update every 4 weeks, and PDF Maker every 2 months. Most recently, Echo AI was updated on November 4, 2026 and PDF Maker on November 4, 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.*