# Multisaurus vs Hearing Booster for Airbuds

The clearest difference is device support: Multisaurus at 3 against Hearing Booster for Airbuds's 1. Multisaurus also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Multisaurus sells 2 one-off in-app purchases and Hearing Booster for Airbuds sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Multisaurus ships an update every 4 months, Hearing Booster for Airbuds every 3 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Multisaurus | Hearing Booster for Airbuds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (238 ratings)](https://appshunter.io/ios/app/multisaurus/id931310320/reviews)** | — |
| Number of ratings | **238** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 38 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Craig Grummitt](https://appshunter.io/developer/850010899) | [Hoang Le](https://appshunter.io/developer/1896615525) |

## What reviewers say

### Multisaurus

[App page](https://appshunter.io/ios/app/multisaurus/id931310320)

Explore word relationships beyond simple synonyms. Discover connections between synonyms of multiple words, find shared terms, and exclude specific related words to refine your vocabulary. Ideal for writers and students seeking precise language.

**Highlights:** Connects to multiple thesauruses, Find synonyms of multiple words, Exclude synonyms of other words, Find shared synonyms between words, Discover word relationship connections

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial. | Free | one-time |
| Activate Multisaurus | $0.99 | one-time |

**What reviewers like**

- 💡 Clever approach to finding words
- 👍 Easy to navigate and use
- ✨ Aesthetically pleasing design
- 💡 Great for writers and brainstorming
- 💡 Useful for vocabulary expansion

**What reviewers complain about**

- 👎 Very limited vocabulary
- 👎 Doesn't provide many synonyms
- 👎 Basic word selection
- 👎 Only works in portrait orientation
- 👎 Issues with adverbs

**Reported bugs**

- iPhone froze after opening app
- App still cannot be used after freezing
- Constant feedback request interruptions
- Premium version stopped working
- Adding additional words does nothing

**Requested features**

- Add dictionary definitions for each word
- Incorporate a way to look up definitions of results
- Add an introduction jingle


### Hearing Booster for Airbuds

[App page](https://appshunter.io/ios/app/hearing-booster-for-airbuds/id6768914104)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Hearing Aid Pro | $2.99 | per month |
| Yearly for Hearing Aid Pro | $29.99 | per year |


## Frequently asked questions

### Is Multisaurus free?

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

### Is Hearing Booster for Airbuds free?

Hearing Booster for Airbuds is free to download, with in-app purchases available.

### Do Multisaurus or Hearing Booster for Airbuds have ads?

Neither Multisaurus nor Hearing Booster for Airbuds shows ads.

### Which is updated more often, Multisaurus or Hearing Booster for Airbuds?

Multisaurus ships an update every 4 months, and Hearing Booster for Airbuds every 3 months. Most recently, Multisaurus was updated on November 1, 2026 and Hearing Booster for Airbuds on October 31, 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.*