PDF Scan Express vs Roll Call · Teacher Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Scan Express
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Suddenly needing to scan documents or books, this app is specially designed to automatically split a single scanned image of a dual-page book or magazine into two separate PDF pages for the user. The resulting PDF pages are sized appropriately for viewing on a mobile phone device. It also uses artificial intelligence to hide any fingernails visible in the image. Compared to traditional scanning applications, it can save up to half the time.
Roll Call · Teacher Assistant
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Are you still frustrated by these things-- Is taking attendance every class taking too much time and effort? Is it hard to keep student information organized? Is the class progress always unclear? Do end-of-term data statistics give you a headache? Now, a little assistant built just for teachers is here!
Screenshots
Verdict
The clearest difference is in-app purchases: PDF Scan Express at none against Roll Call · Teacher Assistant's 1. Roll Call · Teacher Assistant's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.5). On price and ads 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. Roll Call · Teacher Assistant sells 1 one-off in-app purchase. PDF Scan Express asks for nothing beyond the download.
| Parameter | PDF Scan Express | Roll Call · Teacher Assistant |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 13.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Leung Man Ho Thomas | 申生 金 |
In-app purchases
PDF Scan Express
No in-app purchases
Roll Call · Teacher Assistant
- 永久解锁$9.99
Questions
Is PDF Scan Express free?
Is Roll Call · Teacher Assistant free?
Do PDF Scan Express or Roll Call · Teacher Assistant have ads?
Other comparisons
