# SnapDoc vs ClassLog

The clearest difference is in-app purchases: ClassLog at none against SnapDoc's 1. ClassLog also leads on iOS requirement (14.0 vs 17.6). SnapDoc's advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. SnapDoc sells 1 one-off in-app purchase. ClassLog asks for nothing beyond the download.

SnapDoc ships an update fortnightly, ClassLog monthly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SnapDoc | ClassLog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Freemium | — |
| Size | 8 MB | 21 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [友健 高](https://appshunter.io/developer/1871964438) | [明昭 路](https://appshunter.io/developer/1890357342) |

## What reviewers say

### SnapDoc

[App page](https://appshunter.io/ios/app/snapdoc-pdfscanner/id6790444860)

Transform your mobile device into a powerful scanner. Capture documents, automatically crop and enhance them, and then sign, merge, or protect them with passwords. Extract text for searching or export to various formats, all processed securely on your device.

**Highlights:** Scan documents to PDF, Auto edge detection and shadow reduction, Sign, merge, and password protect PDFs, On-device OCR for text extraction, ID photo background and size editing, No ads or account required

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 升级高级会员 | $0.99 | one-time |


### ClassLog

[App page](https://appshunter.io/ios/app/classlog-attendance-tracker/id6791393409)

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

**In-app purchases:** none


## Frequently asked questions

### Is SnapDoc free?

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

### Is ClassLog free?

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

### Do SnapDoc or ClassLog have ads?

Neither SnapDoc nor ClassLog shows ads.

### Which is updated more often, SnapDoc or ClassLog?

SnapDoc ships an update fortnightly, and ClassLog monthly. Most recently, SnapDoc was updated on October 10, 2026 and ClassLog on October 7, 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.*