# eOceans vs Convert PDF to EPUB

The clearest difference is in-app purchases: eOceans at none against Convert PDF to EPUB's 1. eOceans also leads on update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Convert PDF to EPUB sells 1 one-off in-app purchase. eOceans asks for nothing beyond the download.

eOceans ships an update weekly, Convert PDF to EPUB every 3 months. The most recent releases landed on September 17, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | eOceans | Convert PDF to EPUB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/eoceans/id1495841229/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 79 MB | 23 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [eOceans Research and Consulting Inc.](https://appshunter.io/developer/1495841228) | [Antonio Gonzalez de la aleja german](https://appshunter.io/developer/1839645711) |

## What reviewers say

### eOceans

[App page](https://appshunter.io/ios/app/eoceans/id1495841229)

Manage environmental projects from anywhere with this all-in-one app. Collect standardized data in the field, collaborate with teams, and transform observations into instant insights without needing spreadsheets or coding skills. Scale your initiatives smarter and faster.

**Highlights:** Field data collection with GPS and timestamp, Standardized data logging for biodiversity, pollution, and more, Real-time maps, time series, and trend analysis, Secure team collaboration and data sharing, Project management without coding or GIS skills, Integration with global conservation priorities

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

**In-app purchases:** none


### Convert PDF to EPUB

[App page](https://appshunter.io/ios/app/convert-pdf-to-epub/id6754223546)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is eOceans free?

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

### Is Convert PDF to EPUB free?

Convert PDF to EPUB is free to download, with in-app purchases available.

### Do eOceans or Convert PDF to EPUB have ads?

Neither eOceans nor Convert PDF to EPUB shows ads.

### Which is updated more often, eOceans or Convert PDF to EPUB?

eOceans ships an update weekly, and Convert PDF to EPUB every 3 months. Most recently, eOceans was updated on September 17, 2026 and Convert PDF to EPUB on September 11, 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.*