# EPUB2PDF vs Sungrade

The clearest difference is in-app purchases: Sungrade at none against EPUB2PDF's 3. Sungrade also leads on update cadence (every 4 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

EPUB2PDF costs $0.99 and Sungrade $0.99 up front. EPUB2PDF sells 3 in-app purchases, starting at $3.99 per month. Sungrade asks for nothing beyond the download.

EPUB2PDF ships an update every 3 months, Sungrade every 4 days. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | EPUB2PDF | Sungrade |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 18 MB | 34 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [乐祥 胡](https://appshunter.io/developer/1572365721) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### EPUB2PDF

[App page](https://appshunter.io/ios/app/epub2pdf/id6768984605)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EPUB2PDF Premium - 30DAYS | $3.99 | per month |
| EPUB2PDF Premium - 360DAYS | $3.99 | per year |
| EPUB2PDF Premium - lifetime | $7.99 | one-time |


### Sungrade

[App page](https://appshunter.io/ios/app/sungrade-window-sun-tracker/id6776849435)

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

**In-app purchases:** none


## Frequently asked questions

### Is EPUB2PDF free?

EPUB2PDF costs $0.99, and also offers in-app purchases.

### Is Sungrade free?

Sungrade costs $0.99, with no in-app purchases.

### Do EPUB2PDF or Sungrade have ads?

Neither EPUB2PDF nor Sungrade shows ads.

### Which is updated more often, EPUB2PDF or Sungrade?

EPUB2PDF ships an update every 3 months, and Sungrade every 4 days. Most recently, EPUB2PDF was updated on October 16, 2026 and Sungrade on October 18, 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.*