# Hear Boost vs Catch Flex

The clearest difference is review sentiment: Hear Boost at 50% against Catch Flex's 0%. Hear Boost also leads on rating (4.2 vs 3.0) and ratings volume (12K vs 4). Catch Flex's advantage is in-app purchases (none vs 18). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hear Boost sells 15 in-app purchases, starting at $2.99 per 7 days. Catch Flex asks for nothing beyond the download.

Hear Boost holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: Hear Boost has 12K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Hear Boost's written reviews are positive against 0% of Catch Flex's.

Hear Boost ships an update every 3 weeks, Catch Flex every 2 months. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Hear Boost | Catch Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (12K ratings)](https://appshunter.io/ios/app/hear-boost-hearing-aid-and-mic/id1437159134/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/catch-flex-controller/id6474227857/reviews) |
| Number of ratings | **12K** | 4 |
| Positive reviews | **50.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | **Free** |
| Size | 73 MB | 84 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Future Moments](https://appshunter.io/developer/895157892) | [Vilegacy](https://appshunter.io/developer/1817905358) |

## What reviewers say

### Hear Boost

[App page](https://appshunter.io/ios/app/hear-boost-hearing-aid-and-mic/id1437159134)

Amplify your hearing and record distant sounds with this app. It allows you to capture conversations and ambient noises at up to 200x your microphone's normal capacity. Features include microphone input selection, voice filtering, and an equalizer for sound adjustment.

**Highlights:** Enhanced hearing and recording, Capture distant conversations, Up to 200x microphone amplification, Selectable microphone input, Voice filter switch, Adjustable equalizer, Background operation

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Monthly | $4.99 | per month |
| Monthly | $4.99 | per month |
| 6 Months | $7.99 | per 6 months |
| Trial + Annual | $14.99 | per year |
| 6 Months | $14.99 | per 6 months |
| Annual + Trial | $14.99 | per year |
| Annual + Trial | $19.99 | per year |
| Transcription up to 1 hour | $0.99 | one-time |
| Unlimited Use Forever | $1.99 | one-time |
| Transcription up to 2 hours | $1.99 | one-time |
| Transcription up to 3 hours | $2.99 | one-time |
| Custom Equalizer | $3.99 | one-time |
| All Spaces | $4.99 | one-time |

**What reviewers like**

- 👍 Useful app
- 🚀 Great sound quality
- ⭐ Awesome app
- 🎉 Best app ever
- 💻 Works well with headphones

**What reviewers complain about**

- 🐛 Crashes frequently
- 🔒 Privacy concerns
- 💰 Expensive upgrades
- ⏱️ Forced waiting periods
- 🔇 Poor sound quality without upgrades

**Reported bugs**

- Recordings not saving properly
- Equalizer not working as expected
- Constant feedback/distortion
- App freezing/crashing on launch

**Requested features**

- Microphone selection option
- Noise cancellation feature
- Bluetooth speaker support
- Real-time transcription
- Hearing aid integration


### Catch Flex

[App page](https://appshunter.io/ios/app/catch-flex-controller/id6474227857)

Transform your phone into a full-body motion controller for specific games. Experience immersive gameplay by tracking your movements without needing a physical gamepad. Enjoy interactive gaming powered by your body's actions.

**Highlights:** Full-body camera tracking, Phone as motion controller, Gamepad-free gameplay, Control specific games, Body movement tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Hear Boost free?

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

### Is Catch Flex free?

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

### Which has better reviews, Hear Boost or Catch Flex?

Hear Boost is rated higher. Hear Boost averages 4.2 out of 5 from 12K ratings, while Catch Flex averages 3.0 from 4 ratings.

### Do Hear Boost or Catch Flex have ads?

Neither Hear Boost nor Catch Flex shows ads.

### Which is updated more often, Hear Boost or Catch Flex?

Hear Boost ships an update every 3 weeks, and Catch Flex every 2 months. Most recently, Hear Boost was updated on October 19, 2026 and Catch Flex on October 3, 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.*