# Thesaurus Synonyms AI Keyboard vs SubsApp

The clearest difference is ads: SubsApp at none against Thesaurus Synonyms AI Keyboard's shown. Thesaurus Synonyms AI Keyboard's advantage is update cadence (monthly vs every 3 months) and iOS requirement (13.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Thesaurus Synonyms AI Keyboard sells 3 in-app purchases, starting at $3.99 per month and SubsApp sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Thesaurus Synonyms AI Keyboard ships an update monthly, SubsApp every 3 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | Thesaurus Synonyms AI Keyboard | SubsApp |
| --- | --- | --- |
| Price | Free | Free |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 16 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Burak Gomec](https://appshunter.io/developer/1579228412) | [Ajithkumar V](https://appshunter.io/developer/1846791921) |

## 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 |


### SubsApp

[App page](https://appshunter.io/ios/app/subsapp-subscription-tracker/id6754158830)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $4.99 | one-time |


## Frequently asked questions

### Is Thesaurus Synonyms AI Keyboard free?

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

### Is SubsApp free?

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

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

Thesaurus Synonyms AI Keyboard shows ads; SubsApp does not.

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

Thesaurus Synonyms AI Keyboard ships an update monthly, and SubsApp every 3 months. Most recently, Thesaurus Synonyms AI Keyboard was updated on October 30, 2026 and SubsApp on October 30, 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.*