# Thesaurus Synonyms AI Keyboard vs BrieflyAI

The clearest difference is price: Thesaurus Synonyms AI Keyboard at Free against BrieflyAI's $0.99. Thesaurus Synonyms AI Keyboard also leads on iOS requirement (13.0 vs 26.0). BrieflyAI's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Thesaurus Synonyms AI Keyboard is free to download; BrieflyAI costs $0.99 up front. Thesaurus Synonyms AI Keyboard sells 3 in-app purchases, starting at $3.99 per month. BrieflyAI asks for nothing beyond the download.

Thesaurus Synonyms AI Keyboard ships an update monthly, BrieflyAI every 5 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Thesaurus Synonyms AI Keyboard | BrieflyAI |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.4 (37 ratings)](https://appshunter.io/ios/app/thesaurus-synonyms-ai-keyboard/id6505026800/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 2 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Burak Gomec](https://appshunter.io/developer/1579228412) | [Guillermo Moran](https://appshunter.io/developer/1032633816) |

## What reviewers say

### Thesaurus Synonyms AI Keyboard

[App page](https://appshunter.io/ios/app/thesaurus-synonyms-ai-keyboard/id6505026800)

This keyboard extension offers a powerful thesaurus and AI writing assistant to help you find synonyms, rephrase sentences, and enhance your vocabulary across all apps. Elevate your writing with intelligent suggestions for richer, more impactful communication.

**Highlights:** AI-powered synonym suggestions, Sentence and phrase rephrasing, Seamless keyboard integration, Works with all applications, Vocabulary expansion, Context-aware suggestions

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade To Premium-Monthly | $3.99 | per month |
| Upgrade To Premium-Yearly | $9.99 | per year |
| Lifetime | $29.99 | one-time |


### BrieflyAI

[App page](https://appshunter.io/ios/app/brieflyai-smart-web-reader/id6759778178)

**Features:** Safari Extension

**In-app purchases:** none


## Frequently asked questions

### Is Thesaurus Synonyms AI Keyboard free?

Thesaurus Synonyms AI Keyboard is free to download, with in-app purchases available.

### Is BrieflyAI free?

BrieflyAI costs $0.99, with no in-app purchases.

### Do Thesaurus Synonyms AI Keyboard or BrieflyAI have ads?

Thesaurus Synonyms AI Keyboard shows ads; BrieflyAI does not.

### Which is updated more often, Thesaurus Synonyms AI Keyboard or BrieflyAI?

Thesaurus Synonyms AI Keyboard ships an update monthly, and BrieflyAI every 5 days. Most recently, Thesaurus Synonyms AI Keyboard was updated on October 30, 2026 and BrieflyAI on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*