# DOPA Library vs MRTA E

DOPA Library and MRTA E are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on June 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DOPA Library | MRTA E |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 23 MB | 27 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [BOOKDOSE COMPANY LIMITED](https://appshunter.io/developer/459445000) | [Mass Rapid Transit Authority of Thailand](https://appshunter.io/developer/1494832322) |

## What reviewers say

### DOPA Library

[App page](https://appshunter.io/ios/app/dopa-library/id6695739958)

Access a vast digital library with a wide range of resources including books, journals, e-books, and multimedia content. This application provides a platform for research and learning, offering both internal and external media for users.

**Highlights:** Digital library access, Books and e-books, Journals and e-journals, Multimedia content, Research and learning resources, Internal and external media

**Features:** macOS Compatibility

**In-app purchases:** none


### MRTA E

[App page](https://appshunter.io/ios/app/mrta-e-library/id6745213881)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DOPA Library free?

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

### Is MRTA E free?

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

### Do DOPA Library or MRTA E have ads?

Neither DOPA Library nor MRTA E shows ads.

### Which is updated more often, DOPA Library or MRTA E?

DOPA Library ships an update monthly, and MRTA E monthly. Most recently, DOPA Library was updated on June 9, 2026 and MRTA E on September 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.*