# Sound Amplifier vs ai'd

The clearest difference is in-app purchases: ai'd at none against Sound Amplifier's 3. ai'd also leads on rating (5.0 vs 4.7) and device support (3 vs 1). Sound Amplifier's advantage is ratings volume (26 vs 2). On price, update cadence and ads there is nothing between them.

Both are free to download. Sound Amplifier sells 3 in-app purchases, starting at $6.99 per 7 days. ai'd asks for nothing beyond the download.

ai'd holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sound Amplifier has 26 ratings behind it against 2, so its average is the more settled of the two.

Sound Amplifier ships an update every 11 days, ai'd every 8 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Sound Amplifier | ai'd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (26 ratings)](https://appshunter.io/ios/app/sound-amplifier-hear-boost/id6756648714/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/aid/id6774993719/reviews)** |
| Number of ratings | **26** | 2 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 8 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 32 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Lash Karetski](https://appshunter.io/developer/1797093827) | [William Davies](https://appshunter.io/developer/6774993721) |

## What reviewers say

### Sound Amplifier

[App page](https://appshunter.io/ios/app/sound-amplifier-hear-boost/id6756648714)

Amplify and clarify audio in real-time, turning your phone into a powerful hearing aid. Instantly replay the last 30 seconds of sound and boost volume beyond normal limits. Works with any headphones and in background mode for convenience.

**Highlights:** Real-time sound amplification, Instant 30-second audio replay, Microphone boost for distant sounds, Background listening mode, Live sound waveform visualization, Works with wired and wireless headphones

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Yearly Premium | $34.99 | per year |
| Premium | $14.99 | one-time |


### ai'd

[App page](https://appshunter.io/ios/app/aid/id6774993719)

This app provides a trusted second opinion for older adults to evaluate suspicious communications and documents. Using artificial intelligence, it explains complex information in simple terms, helping users make confident decisions and stay safe online.

**Highlights:** Check suspicious emails, texts, and messages, Understand confusing documents and letters, Identify photos and images, Ask questions and get clear answers, Share concerns with family, Senior-friendly interface with read-aloud responses

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

**In-app purchases:** none


## Frequently asked questions

### Is Sound Amplifier free?

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

### Is ai'd free?

ai'd is free to download, with no in-app purchases.

### Which has better reviews, Sound Amplifier or ai'd?

ai'd is rated higher. Sound Amplifier averages 4.7 out of 5 from 26 ratings, while ai'd averages 5.0 from 2 ratings.

### Do Sound Amplifier or ai'd have ads?

Neither Sound Amplifier nor ai'd shows ads.

### Which is updated more often, Sound Amplifier or ai'd?

Sound Amplifier ships an update every 11 days, and ai'd every 8 days. Most recently, Sound Amplifier was updated on October 24, 2026 and ai'd on October 15, 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.*