# ERS_250 vs FeedbackGuard

The clearest difference is price: FeedbackGuard at $3.99 against ERS_250's $13.99. FeedbackGuard also leads on rating (5.0 vs 4.3) and update cadence (every 4 days vs every 8 months). ERS_250's advantage is ratings volume (6 vs 1) and iOS requirement (9.3 vs 17.0). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

ERS_250 costs $13.99 and FeedbackGuard $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FeedbackGuard holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: ERS_250 has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

ERS_250 ships an update every 8 months, FeedbackGuard every 4 days. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ERS_250 | FeedbackGuard |
| --- | --- | --- |
| Price | $13.99 | **$3.99** |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/ers-250/id1584339422/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/feedbackguard/id6769670528/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Paid | Paid |
| Size | 9 MB | 4 MB |
| Requires iOS | **9.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Siedschlag](https://appshunter.io/developer/538434682) | [Norwin Palme](https://appshunter.io/developer/1889770642) |

## What reviewers say

### ERS_250

[App page](https://appshunter.io/ios/app/ers-250/id1584339422)

This audio plugin faithfully replicates the EMT 250, the first digital hardware reverb ever made. It offers adjustable decay time, frequency response, predelay, and a dry-wet ratio, with an optional modern schematic.

**Highlights:** Replication of original EMT 250 schematics, Adjustable reverb decay time (0.4-5s), Adjustable low and high frequency response, Adjustable predelay, Additional low-pass filter, Adjustable Dry-Wet ratio, Optional 'modern' schematics

**Features:** Vision Pro support

**In-app purchases:** none


### FeedbackGuard

[App page](https://appshunter.io/ios/app/feedbackguard/id6769670528)

This audio effect plugin automatically detects and suppresses acoustic feedback in real-time. It uses advanced analysis to place precise notch filters, allowing for clear audio during live performances or recordings. Customize settings for optimal suppression without compromising sound quality.

**Highlights:** Real-time howling detection, Adaptive notch bank (up to 24 notches), Live spectrum display, User-defined presets, Adjustable sensitivity and suppression, Optional harmonic tracking, Optional spectral noise reduction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ERS_250 free?

ERS_250 costs $13.99, with no in-app purchases.

### Is FeedbackGuard free?

FeedbackGuard costs $3.99, with no in-app purchases.

### Which has better reviews, ERS_250 or FeedbackGuard?

FeedbackGuard is rated higher. ERS_250 averages 4.3 out of 5 from 6 ratings, while FeedbackGuard averages 5.0 from 1 ratings.

### Do ERS_250 or FeedbackGuard have ads?

Neither ERS_250 nor FeedbackGuard shows ads.

### Which is updated more often, ERS_250 or FeedbackGuard?

ERS_250 ships an update every 8 months, and FeedbackGuard every 4 days. Most recently, ERS_250 was updated on October 7, 2026 and FeedbackGuard on October 18, 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.*