Express Scan vs Readius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Express Scan
This free utility app allows you to scan documents, ID cards, and pictures, converting them into PDF format. You can then save, share, and print your scanned files easily from your mobile device.
- Scan documents and pictures
- Convert to PDF format
- Save scanned files
- Share PDF documents
- Print PDF files
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Express Scan is a free document scanner that turns papers, IDs, and photos into clean PDFs — no account required. • Scan multipage documents with your camera, or import from Photos • Crop, filter, and reorder pages before you save • Organize PDFs into folders (Work, Travel, Receipts, and more) • Reopen saved PDFs to edit pages again • Tips & Help to get started quickly • Share or print your PDFs anytime Fast, simple scanning for everyday documents.
Readius
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全数字掌上式彩色多普勒超声显像仪 本应用配合Readius L8、C3、C6探头使用，在做医疗决定之前，还应寻求医生的建议。
Screenshots
Verdict
The clearest difference is ads: Readius at none against Express Scan's shown. Express Scan's advantage is update cadence (every 6 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
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.
Express Scan ships an update every 6 days, Readius every 2 months. The most recent releases landed on July 23, 2026 and September 28, 2026 respectively.
| Parameter | Express Scan | Readius |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 days — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14 |
| Further details — not scored | ||
| Size | 26 MB | 418 MB |
| Age rating | 4+ | 17+ |
| Developer | APPS BAY LIMITED | Shantou Institute of Ultrasonic Inst. Co., Ltd. |
In-app purchases
Express Scan
No in-app purchases
Readius
No in-app purchases
