# BLUEMAX ESP vs Picbook

The clearest difference is in-app purchases: BLUEMAX ESP at none against Picbook's 2. BLUEMAX ESP also leads on iOS requirement (15.0 vs 17.0). Picbook's advantage is update cadence (every 11 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Picbook sells 2 in-app purchases, starting at $1.99 per month. BLUEMAX ESP asks for nothing beyond the download.

BLUEMAX ESP ships an update every 3 months, Picbook every 11 days. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | BLUEMAX ESP | Picbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Size | 29 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [SECUi Corp.](https://appshunter.io/developer/1607440583) | [XTI Co.,Ltd.](https://appshunter.io/developer/1533410506) |

## What reviewers say

### BLUEMAX ESP

[App page](https://appshunter.io/ios/app/bluemax-esp/id6473090718)

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

**In-app purchases:** none


### Picbook

[App page](https://appshunter.io/ios/app/picbook-web-image-viewer/id6801503106)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Picbook Pro Monthly | $1.99 | per month |
| Picbook Pro | $9.99 | one-time |


## Frequently asked questions

### Is BLUEMAX ESP free?

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

### Is Picbook free?

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

### Do BLUEMAX ESP or Picbook have ads?

Neither BLUEMAX ESP nor Picbook shows ads.

### Which is updated more often, BLUEMAX ESP or Picbook?

BLUEMAX ESP ships an update every 3 months, and Picbook every 11 days. Most recently, BLUEMAX ESP was updated on October 13, 2026 and Picbook on October 9, 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.*