# A vs T.R.A.I.N

The clearest difference is ads: T.R.A.I.N at none against A's shown. T.R.A.I.N also leads on update cadence (weekly vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. A sells 4 in-app purchases, starting at $0.69 per 7 days and T.R.A.I.N sells 10 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

A ships an update every 2 weeks, T.R.A.I.N weekly. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | A | T.R.A.I.N |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 8 MB | 185 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Revtov](https://appshunter.io/developer/1812228553) | [Maryna Kravchuk](https://appshunter.io/developer/1859414210) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-dictionary-learn-words/id6745438076)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Unlimited | $0.69 | per 7 days |
| AI unlimited | $1.99 | per month |
| AI unlimited | $17.99 | per year |
| 100K AI-tokens | $1.99 | one-time |


### T.R.A.I.N

[App page](https://appshunter.io/ios/app/train-learn-words/id6756235195)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Pro Monthly | $14.99 | per month |
| Premium 3 Months | $29.99 | per 3 months |
| Pro 3 Months | $39.99 | per 3 months |
| Premium year | $99.99 | per year |
| Pro 1 year | $149.99 | per year |
| Coins 50 | $0.99 | one-time |
| Coins 150 | $1.99 | one-time |
| Coins 200 | $3.99 | one-time |
| Coins 300 | $3.99 | one-time |


## Frequently asked questions

### Is A free?

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

### Is T.R.A.I.N free?

T.R.A.I.N is free to download, with in-app purchases available.

### Do A or T.R.A.I.N have ads?

A shows ads; T.R.A.I.N does not.

### Which is updated more often, A or T.R.A.I.N?

A ships an update every 2 weeks, and T.R.A.I.N weekly. Most recently, A was updated on October 5, 2026 and T.R.A.I.N on October 10, 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.*