# Knotwords vs EST

The clearest difference is iOS requirement: Knotwords at 13.6 against EST's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Knotwords sells 2 in-app purchases, starting at $4.99 per year and EST sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Knotwords ships an update every 10 days, EST every 2 weeks. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Knotwords | EST |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8.2K ratings)](https://appshunter.io/ios/app/knotwords/id1598756238/reviews)** | — |
| Number of ratings | **8.2K** | — |
| Positive reviews | 73.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 507 MB | 8 MB |
| Requires iOS | **13.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zach Gage](https://appshunter.io/developer/294263418) | [CENTAUR LABS OU](https://appshunter.io/developer/1790899201) |

## What reviewers say

### Knotwords

[App page](https://appshunter.io/ios/app/knotwords/id1598756238)

A daily word puzzle game that challenges you to arrange letters into valid words across and down. Its minimal design and intuitive progression make it an engaging and accessible brain teaser.

**Highlights:** Minimalist and elegant design, Logic-based word puzzles, Daily challenges, Intuitive progression system, Valid word arrangement

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knotwords Pro subscription | $4.99 | per year |
| Full Game | $11.99 | one-time |

**What reviewers like**

- 🚀 Great game
- 👍 Fun and challenging
- 🚀 Simple but engaging
- 👍 Unique concept
- 👍 Addictive

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Buggy cursor/input issues
- 🐛 Slow performance
- 🐛 Questionable word choices
- 🔋 Battery drain

**Reported bugs**

- Puzzles with missing/incorrect squares
- Incorrect words being accepted
- Puzzles not properly credited as completed
- Hints not matching the correct answers

**Requested features**

- Ability to turn off haptic feedback
- Improved cursor/input behavior
- Cloud sync across devices
- Difficulty settings
- Ability to see definitions of completed words


### EST

[App page](https://appshunter.io/ios/app/est-card-trios/id6806817604)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support EST | $9.99 | one-time |


## Frequently asked questions

### Is Knotwords free?

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

### Is EST free?

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

### Do Knotwords or EST have ads?

Neither Knotwords nor EST shows ads.

### Which is updated more often, Knotwords or EST?

Knotwords ships an update every 10 days, and EST every 2 weeks. Most recently, Knotwords was updated on November 11, 2026 and EST on November 6, 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.*