# Tandem vs eCasals Off

The clearest difference is in-app purchases: eCasals Off at none against Tandem's 10. eCasals Off also leads on ads (none vs shown). Tandem's advantage is update cadence (weekly vs every 36 months) and review sentiment (47% vs 20%). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tandem sells 10 in-app purchases, starting at $14.99 per month. eCasals Off asks for nothing beyond the download.

Tandem ships an update weekly, eCasals Off every 36 months. The most recent releases landed on November 12, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Tandem | eCasals Off |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (39K ratings)](https://appshunter.io/ios/app/tandem-practice-languages/id959001619/reviews)** | — |
| Number of ratings | **39K** | — |
| Positive reviews | **47.5% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 36 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#174** | — |
| Size | 304 MB | 74 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +17 | 17+ |
| Developer | [Tripod Technology GmbH](https://appshunter.io/developer/606999648) | [Casals](https://appshunter.io/developer/648256801) |

## What reviewers say

### Tandem

[App page](https://appshunter.io/ios/app/tandem-practice-languages/id959001619)

**Currently charting:** #174 Top Grossing · Education, #204 Top Free · Education (US App Store)

Connect with native speakers globally to practice and master new languages through text, voice, and video calls. Enhance vocabulary, perfect pronunciation, and grasp grammar with a supportive community and integrated tools.

**Highlights:** Connect with native speakers, 1-to-1 chats, Group audio learning (Parties), In-app translation, Voice and video calls, Message correction, 300+ languages supported

**Features:** Family Sharing, iMessage stickers, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tandem Pro | $14.99 | per month |
| Tandem Pro | $14.99 | per month |
| Tandem Pro | $26.90 | per 3 months |
| Tandem Pro | $26.90 | per 3 months |
| Tandem Pro Intro - 12 months | $39.99 | per year |
| Tandem Pro Plus - 12 months | $64.99 | per year |
| Tandem Pro | $69.90 | per year |
| Tandem Pro | $69.90 | per year |
| Tandem Pro | $69.99 | per year |
| Tandem Pro Intro - 12 months | $80.00 | per year |

**What reviewers like**

- 🚀 Great for language learning
- 👍 Helpful features like translation and correction
- 🌎 Connects people from around the world
- 💡 Innovative concept for language exchange

**What reviewers complain about**

- 🐛 Buggy and glitchy app
- 💬 Difficulty maintaining conversations
- 📤 Excessive ads and paywalls
- 🔒 Privacy and safety concerns
- ⚠️ Moderation issues and unfair bans

**Reported bugs**

- Messages not being delivered or synced properly
- Frequent crashes and app instability
- Login and account issues when switching devices

**Requested features**

- Better search and filtering options
- Ability to save/review past conversations
- Group chat or language party features
- More language options beyond just popular ones


### eCasals Off

[App page](https://appshunter.io/ios/app/ecasals-off-line/id1484934375)

Access digital textbooks and resources from Editorial Casals offline. Download content from the ecasals.net website to view books and utilize most platform features without an internet connection. Use your existing eCasals web account credentials to log in.

**Highlights:** Offline access to digital books, Access to most platform features, Use existing eCasals web account, Download content from website, View book pages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tandem free?

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

### Is eCasals Off free?

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

### Do Tandem or eCasals Off have ads?

Tandem shows ads; eCasals Off does not.

### Which is updated more often, Tandem or eCasals Off?

Tandem ships an update weekly, and eCasals Off every 36 months. Most recently, Tandem was updated on November 12, 2026 and eCasals Off on November 3, 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.*