# EchoBox Player vs OpenCards

The clearest difference is in-app purchases: EchoBox Player at none against OpenCards's 1. OpenCards's advantage is update cadence (fortnightly vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. OpenCards sells 1 in-app purchase, starting at $0.99 per month. EchoBox Player asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for EchoBox Player against 5.0 for OpenCards. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

EchoBox Player ships an update every 2 months, OpenCards fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | EchoBox Player | OpenCards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/echobox-player/id6751859578/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/opencards/id6760596083/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 2 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Oriol Gomez](https://appshunter.io/developer/1528856183) | [礼 付](https://appshunter.io/developer/1487345625) |

## What reviewers say

### EchoBox Player

[App page](https://appshunter.io/ios/app/echobox-player/id6751859578)

An elegant, privacy-focused audio player for long-form content like audiobooks and podcasts. It preserves your folder structure, offers chapter support, customizable audio effects, and on-device transcription. Enjoy your media library with smart features that enhance listening without intrusive tracking.

**Highlights:** Preserves folder structure, Per-file relative volume control, Chapter support, Optional audio effects (EQ, compressor), On-device transcription, Internet radio playback

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

**In-app purchases:** none


### OpenCards

[App page](https://appshunter.io/ios/app/opencards/id6760596083)

Transform your Markdown notes into interactive knowledge cards. Organize, review, and access your information seamlessly across devices. Supports rich formatting, including math equations and code.

**Highlights:** Markdown cards with math and code highlighting, Organize cards into sections, Tags and likes with filtering, Full-screen swipe navigation, Global search, iCloud sync, GitHub Markdown import

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenCards Pro | $0.99 | per month |


## Frequently asked questions

### Is EchoBox Player free?

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

### Is OpenCards free?

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

### Which has better reviews, EchoBox Player or OpenCards?

EchoBox Player and OpenCards are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do EchoBox Player or OpenCards have ads?

Neither EchoBox Player nor OpenCards shows ads.

### Which is updated more often, EchoBox Player or OpenCards?

EchoBox Player ships an update every 2 months, and OpenCards fortnightly. Most recently, EchoBox Player was updated on October 30, 2026 and OpenCards on October 31, 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.*