# ByeIdiom vs Adolf

The clearest difference is price: ByeIdiom at Free against Adolf's $0.99. Adolf's advantage is ads (none vs shown) and iOS requirement (14.0 vs 16.0). On update cadence, in-app purchases and device support there is nothing between them.

ByeIdiom is free to download; Adolf costs $0.99 up front. ByeIdiom sells 2 one-off in-app purchases and Adolf sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 15, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | ByeIdiom | Adolf |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[1.5 (2 ratings)](https://appshunter.io/ios/app/adolf-word-learning/id6445839777/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Paid |
| Size | 36 MB | 12 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [德明 杨](https://appshunter.io/developer/1630281265) | [金凯 朱](https://appshunter.io/developer/1662294864) |

## What reviewers say

### ByeIdiom

[App page](https://appshunter.io/ios/app/byeidiom/id1668659209)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Pro Version | $0.99 | one-time |
| Donate | $0.99 | one-time |


### Adolf

[App page](https://appshunter.io/ios/app/adolf-word-learning/id6445839777)

Learn English vocabulary by listening to words and their translations. This app is designed to help you memorize new words effortlessly, making it ideal for improving listening skills during everyday activities or as a relaxation tool.

**Highlights:** Listen to word pronunciations, View word translations, Choose from different word lists, Learn passively while multitasking, Use as a relaxation aid

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 基础套餐 | $0.99 | one-time |
| 优惠套餐 | $4.99 | one-time |
| 最惠套餐 | $8.99 | one-time |


## Frequently asked questions

### Is ByeIdiom free?

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

### Is Adolf free?

Adolf costs $0.99, and also offers in-app purchases.

### Do ByeIdiom or Adolf have ads?

ByeIdiom shows ads; Adolf does not.

### Which is updated more often, ByeIdiom or Adolf?

ByeIdiom ships an update fortnightly, and Adolf fortnightly. Most recently, ByeIdiom was updated on September 15, 2026 and Adolf on June 1, 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.*