# DING fyi vs E2PDF Pro

The clearest difference is in-app purchases: DING fyi at none against E2PDF Pro's 3. DING fyi also leads on iOS requirement (15.1 vs 18.1). E2PDF Pro's advantage is update cadence (daily vs every 3 days). On price, ads and device support there is nothing between them.

Both are free to download. E2PDF Pro sells 3 in-app purchases, starting at $1.99 per 7 days. DING fyi asks for nothing beyond the download.

DING fyi ships an update every 3 days, E2PDF Pro daily. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | DING fyi | E2PDF Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (32 ratings)](https://appshunter.io/ios/app/e2pdf-pro-easy-backup-app/id6763286857/reviews)** |
| Number of ratings | — | **32** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Monetization | — | Subscription |
| Size | 51 MB | 19 MB |
| Requires iOS | **15.1** | 18.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ding FYI Communication Technologies Inc.](https://appshunter.io/developer/1856298344) | [Dinh Thong Truong](https://appshunter.io/developer/1840569349) |

## What reviewers say

### DING fyi

[App page](https://appshunter.io/ios/app/ding-fyi/id6755784325)

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

**In-app purchases:** none


### E2PDF Pro

[App page](https://appshunter.io/ios/app/e2pdf-pro-easy-backup-app/id6763286857)

Easily convert screenshots and contact information into organized, shareable PDF files. Edit images before exporting, arrange pages, and create professional documents locally on your device. Offers flexible subscription plans for continued use.

**Highlights:** Convert screenshots to PDF, Export selected contacts to PDF, Merge multiple images into one PDF, Edit screenshots before export, Arrange PDF pages, Local data processing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Pro Weekly | $1.99 | per 7 days |
| PDF Pro Monthly | $4.99 | per month |
| PDF Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is DING fyi free?

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

### Is E2PDF Pro free?

E2PDF Pro is free to download, with in-app purchases available.

### Do DING fyi or E2PDF Pro have ads?

Neither DING fyi nor E2PDF Pro shows ads.

### Which is updated more often, DING fyi or E2PDF Pro?

DING fyi ships an update every 3 days, and E2PDF Pro daily. Most recently, DING fyi was updated on October 8, 2026 and E2PDF Pro on October 21, 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.*