# Slide Fit Stack vs Letter Trap

The clearest difference is in-app purchases: Slide Fit Stack at none against Letter Trap's 1. Slide Fit Stack also leads on iOS requirement (13.0 vs 15.6). Letter Trap's advantage is update cadence (every 2 weeks vs every 47 months) and ratings volume (17 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Letter Trap sells 1 in-app purchase, starting at $2.99 per month. Slide Fit Stack asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Slide Fit Stack against 5.0 for Letter Trap. That said, the two scores are not equally well evidenced: Letter Trap has 17 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Slide Fit Stack ships an update every 47 months, Letter Trap every 2 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Slide Fit Stack | Letter Trap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/slide-fit-stack/id1611059114/reviews) | [5.0 (17 ratings)](https://appshunter.io/ios/app/letter-trap/id6745054915/reviews) |
| Number of ratings | 1 | **17** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 47 months | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 77 MB | 6 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fernando Gonzalez Frias](https://appshunter.io/developer/582325220) | [Matt Dominianni](https://appshunter.io/developer/1810570510) |

## What reviewers say

### Slide Fit Stack

[App page](https://appshunter.io/ios/app/slide-fit-stack/id1611059114)

Stack stone blocks as high as possible in this endless arcade game. Enjoy a simple, elegant design with progressive difficulty and offline play. Challenge friends to beat your world record.

**Highlights:** Infinite gameplay, Progressive difficulty, Simple and elegant UI, Offline play, Challenge friends

**Features:** macOS Compatibility

**In-app purchases:** none


### Letter Trap

[App page](https://appshunter.io/ios/app/letter-trap/id6745054915)

This daily word puzzle challenges you to trap letters by spelling words that surround them on the board. It's a strategic game that requires thinking differently about language, space, and patterns. Solve one puzzle a day to uncover the secret five-letter word.

**Highlights:** Daily five-letter word puzzles, Trap letters by spelling surrounding words, Strategic grid-based gameplay, Focus on language, space, and patterns, One puzzle per day

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Letter Trap Premium Membership | $2.99 | per month |

**What reviewers like**

- 🚀 Quick to play
- 👍 Challenging but satisfying
- 👍 Interesting and engaging
- 👍 Rewarding when solved
- 👍 Intuitive gameplay


## Frequently asked questions

### Is Slide Fit Stack free?

Slide Fit Stack is free to download, with no in-app purchases.

### Is Letter Trap free?

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

### Which has better reviews, Slide Fit Stack or Letter Trap?

Slide Fit Stack and Letter Trap are both rated 5.0 out of 5 on the App Store, from 1 and 17 ratings respectively.

### Do Slide Fit Stack or Letter Trap have ads?

Both Slide Fit Stack and Letter Trap show ads.

### Which is updated more often, Slide Fit Stack or Letter Trap?

Slide Fit Stack ships an update every 47 months, and Letter Trap every 2 weeks. Most recently, Slide Fit Stack was updated on October 2, 2026 and Letter Trap 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.*