# ETH polybox vs Parlang

The clearest difference is update cadence: Parlang at every 3 weeks against ETH polybox's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

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

ETH polybox ships an update every 6 months, Parlang every 3 weeks. The most recent releases landed on November 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ETH polybox | Parlang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eth-polybox/id909475675/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 229 MB | 4 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ETH Zurich](https://appshunter.io/developer/438432132) | [Jiaxun Chen](https://appshunter.io/developer/6795666603) |

## What reviewers say

### ETH polybox

[App page](https://appshunter.io/ios/app/eth-polybox/id909475675)

This app provides secure online data storage and exchange for ETH Zurich members. It functions as a digital storage solution, offering 50 GB of space on campus servers to avoid external storage risks. Sync clients are available for easy access across devices.

**Highlights:** Secure online data storage, Data exchange for ETH members, 50 GB storage space, Avoids external storage, Sync clients for all OS, ETH account required

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

**In-app purchases:** none


### Parlang

[App page](https://appshunter.io/ios/app/parlang-align-your-languages/id6795666601)

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

**In-app purchases:** none


## Frequently asked questions

### Is ETH polybox free?

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

### Is Parlang free?

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

### Do ETH polybox or Parlang have ads?

Neither ETH polybox nor Parlang shows ads.

### Which is updated more often, ETH polybox or Parlang?

ETH polybox ships an update every 6 months, and Parlang every 3 weeks. Most recently, ETH polybox was updated on November 1, 2026 and Parlang on October 13, 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.*