# The Lettervan vs UnRiddle

The clearest difference is in-app purchases: The Lettervan at none against UnRiddle's 3. The Lettervan also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. UnRiddle sells 3 in-app purchases, starting at $2.99 per month. The Lettervan asks for nothing beyond the download.

The Lettervan ships an update every 4 days, UnRiddle every 3 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | The Lettervan | UnRiddle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/the-lettervan/id6474092236/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Paid | — |
| Size | 161 MB | 94 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Rickard Paulsson](https://appshunter.io/developer/1720627898) | [Penelopa Willmann-Szynalik](https://appshunter.io/developer/1845525765) |

## What reviewers say

### The Lettervan

[App page](https://appshunter.io/ios/app/the-lettervan/id6474092236)

This educational game helps children develop phonemic awareness and spelling skills through interactive word challenges. Players navigate engaging scenarios while learning to identify and manipulate sounds within words, fostering reading and pronunciation proficiency.

**Highlights:** Phoneme recognition practice, Interactive spelling challenges, Word-based animations, Developed with speech pathologists, Engaging game scenarios

**In-app purchases:** none


### UnRiddle

[App page](https://appshunter.io/ios/app/unriddle/id6754343754)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $2.99 | per month |
| Premium Yearly (Offer) | $14.99 | per year |
| Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is The Lettervan free?

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

### Is UnRiddle free?

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

### Do The Lettervan or UnRiddle have ads?

UnRiddle shows ads; The Lettervan does not.

### Which is updated more often, The Lettervan or UnRiddle?

The Lettervan ships an update every 4 days, and UnRiddle every 3 days. Most recently, The Lettervan was updated on October 24, 2026 and UnRiddle on October 7, 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.*