# Hear Boost vs Batch Proof

The clearest difference is review sentiment: Batch Proof at 100% against Hear Boost's 56%. Batch Proof also leads on rating (5.0 vs 4.0) and ads (none vs shown). Hear Boost's advantage is ratings volume (34 vs 4). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Hear Boost sells 3 in-app purchases, starting at $6.99 per month and Batch Proof sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Batch Proof holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Hear Boost has 34 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 56% of Hear Boost's written reviews are positive against 100% of Batch Proof's.

Hear Boost ships an update every 19 months, Batch Proof daily. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Hear Boost | Batch Proof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (34 ratings)](https://appshunter.io/ios/app/hear-boost-live-transcribe/id1636885006/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/batch-proof/id6798914136/reviews)** |
| Number of ratings | **34** | 4 |
| Positive reviews | 55.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 130 MB | 28 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Irina Metelkina](https://appshunter.io/developer/1616464605) | [Dominic Anella](https://appshunter.io/developer/6798914138) |

## What reviewers say

### Hear Boost

[App page](https://appshunter.io/ios/app/hear-boost-live-transcribe/id1636885006)

This app converts spoken words into text in real-time, aiding individuals with hearing impairments. It supports over 40 languages and offers adjustable font sizes for better readability. A subscription unlocks full features.

**Highlights:** Live speech transcription, Supports 40+ languages, Adjustable font size, Monthly subscription option, Yearly subscription option

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $6.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Yearly subscription | $24.99 | per year |


### Batch Proof

[App page](https://appshunter.io/ios/app/batch-proof/id6798914136)

Verify certificates of analysis by scanning QR codes or entering identifiers. Access reports, store them privately, compare details, and find related research. Links to original lab sources are provided.

**Highlights:** Source-first certificate verification, QR code scanning, Manual code entry, Private on-device report storage, Side-by-side report comparison, PubMed research integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Batch Proof Pro Monthly | $3.99 | per month |
| Batch Proof Pro Annual | $34.99 | per year |


## Frequently asked questions

### Is Hear Boost free?

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

### Is Batch Proof free?

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

### Which has better reviews, Hear Boost or Batch Proof?

Batch Proof is rated higher. Hear Boost averages 4.0 out of 5 from 34 ratings, while Batch Proof averages 5.0 from 4 ratings.

### Do Hear Boost or Batch Proof have ads?

Hear Boost shows ads; Batch Proof does not.

### Which is updated more often, Hear Boost or Batch Proof?

Hear Boost ships an update every 19 months, and Batch Proof daily. Most recently, Hear Boost was updated on November 12, 2026 and Batch Proof 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.*