# Thesaurasize vs Zultanium

The clearest difference is ads: Zultanium at none against Thesaurasize's shown. Zultanium also leads on update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (13.0 vs 16.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Thesaurasize ships an update every 6 weeks, Zultanium every 3 weeks. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Thesaurasize | Zultanium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (31 ratings)](https://appshunter.io/ios/app/thesaurasize/id840193912/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 79.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 35 MB | 20 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Next Wave Services Inc.](https://appshunter.io/developer/840193915) | [WEPRO YAZILIM VE DANISMANLIK LIMITED SIRKETI](https://appshunter.io/developer/1596565122) |

## What reviewers say

### Thesaurasize

[App page](https://appshunter.io/ios/app/thesaurasize/id840193912)

Access the most extensive collection of English synonyms, both traditional and unconventional. This app provides a quick and efficient way to find alternative words.

**Highlights:** Extensive synonym collection, Traditional and nontraditional synonyms, Quick word lookups, Growing word database

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 🚀 Quick and fast synonym lookup
- 💡 Extensive word selection
- 👍 Simple and to the point
- 👍 Useful for writing and learning

**What reviewers complain about**

- 🐛 App no longer works after iOS update
- 🐛 Spinning wheel never ends
- 🐛 Inaccurate synonyms (sometimes antonyms)
- 🐛 Results are too broad and unfocused
- 🐛 UI is sloppy

**Reported bugs**

- App no longer works after iOS update
- Spinning wheel never ends
- No synonym found for plural forms
- Inaccurate synonyms provided
- Results are too broad and unfocused

**Requested features**

- Favoriting option
- History of recent searches
- Replace app icon with something simple and flat
- Sections like Favourites and History
- Option to call up antonyms


### Zultanium

[App page](https://appshunter.io/ios/app/zultanium/id6785536492)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thesaurasize free?

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

### Is Zultanium free?

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

### Do Thesaurasize or Zultanium have ads?

Thesaurasize shows ads; Zultanium does not.

### Which is updated more often, Thesaurasize or Zultanium?

Thesaurasize ships an update every 6 weeks, and Zultanium every 3 weeks. Most recently, Thesaurasize was updated on October 21, 2026 and Zultanium 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.*