# Doculous vs Stacked

The clearest difference is update cadence: Stacked at every 3 days against Doculous's every 2 months. Doculous's advantage is iOS requirement (17 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Doculous ships an update every 2 months, Stacked every 3 days. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Doculous | Stacked |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/doculous-pic2pdf-converter/id6754264259/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 17 MB | 15 MB |
| Requires iOS | **17** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Symaro, LLC](https://appshunter.io/developer/1601347178) | [Pull Apps](https://appshunter.io/developer/1828384931) |

## What reviewers say

### Doculous

[App page](https://appshunter.io/ios/app/doculous-pic2pdf-converter/id6754264259)

Transform your photos into professional PDF documents quickly and easily. This app allows you to convert images from your gallery or camera into high-quality PDFs, merge multiple pictures, and reorder them before saving or sharing. It works offline and prioritizes your privacy.

**Highlights:** Convert photos to PDF instantly, Combine multiple images into one PDF, Supports JPG, PNG, and HEIC, Preserves image quality, Reorder or remove images, Works completely offline, Save, print, or share PDFs

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

**In-app purchases:** none


### Stacked

[App page](https://appshunter.io/ios/app/stacked-batch-pdf-scanner/id6761432682)

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

**In-app purchases:** none


## Frequently asked questions

### Is Doculous free?

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

### Is Stacked free?

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

### Do Doculous or Stacked have ads?

Neither Doculous nor Stacked shows ads.

### Which is updated more often, Doculous or Stacked?

Doculous ships an update every 2 months, and Stacked every 3 days. Most recently, Doculous was updated on October 10, 2026 and Stacked on October 11, 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.*