Stacked vs SD Backup
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stacked
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Stacked turns your phone into a fast, clean document scanner built for everyday use. Scan anything in seconds, edit with precision, and export your files exactly how you need them — all in a simple, distraction-free interface. Whether you're organizing notes, saving receipts, or scanning multiple pages at once, Stacked keeps everything smooth and efficient. Scan Smarter Capture high-quality scans using your camera. Automatically detect pages and enhance them for a clean, readable result. Perfect for scanning: • Documents • Notes • Receipts • Contracts • IDs • Any paper you need to digitize Batch Scan with Ease Scan multiple pages in one go and keep everything organized in a single stack. No need to scan one page at a time, build full documents effortlessly. Edit and Customize Crop, adjust, and fine-tune your scans. Reorder pages, delete unwanted ones, and create polished documents in seconds. Export Your Way Save your scans as PDFs or images. Share or store them wherever you want with just a few taps. Private by Design Hide sensitive documents and protect them using Face ID. Keep your personal files secure and accessible only to you. Simple, Fast, Stacked. Support: support@pullapps.app Privacy Policy: https://pullapps.app/privacy-policy-stacked Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SD Backup
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Back up photos and files directly to storage you control. SD Backup copies selected items from your iPhone, an external drive, or another folder to an SFTP server or a destination in the Files app. YOUR STORAGE, YOUR CHOICE • Connect to an SFTP server or NAS with SFTP enabled • Copy to a folder available through the Files app • Select photos or work with folders from external storage CLEAR TRANSFER STATUS • Review items before starting • Follow preparation and upload progress • See completed, resumable, and attention-required states • Confirm an SFTP server's host-key fingerprint when its identity changes PRIVACY BY DESIGN • No developer-operated cloud storage • No account required • No advertising or tracking • SFTP passwords are stored in the Apple Keychain • Files transfer directly between the locations you select SD Backup is made for personal servers, home NAS devices, and private storage workflows.
Screenshots
Verdict
Stacked and SD Backup are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Stacked | SD Backup |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 15 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Pull Apps | 小祯 汪 |
In-app purchases
Stacked
No in-app purchases
SD Backup
No in-app purchases









