# Pumphouse vs lo

The clearest difference is rating: lo at 5.0 against Pumphouse's 4.3. lo also leads on update cadence (fortnightly vs every 4 months) and review sentiment (67% vs 56%). Pumphouse's advantage is price ($0.99 vs $9.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Pumphouse costs $0.99 and lo $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

lo holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 29 respectively. Written reviews point the same way: 56% of Pumphouse's written reviews are positive against 67% of lo's.

Pumphouse ships an update every 4 months, lo fortnightly. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Pumphouse | lo |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/pumphouse/id1270238019/reviews) | **[5.0 (29 ratings)](https://appshunter.io/ios/app/lo-fi-af/id6444068732/reviews)** |
| Number of ratings | 6 | **29** |
| Positive reviews | 55.6% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 15 MB | 17 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) | [Unfiltered Audio](https://appshunter.io/developer/1638381375) |

## What reviewers say

### Pumphouse

[App page](https://appshunter.io/ios/app/pumphouse/id1270238019)

This app provides a sidechain pumping effect for iOS DAWs lacking native support. It combines a compressor with a step sequencer to drive an envelope generator, allowing for sidechain compression without external inputs. Achieve a popular audio effect easily with its intuitive interface.

**Highlights:** Sidechain pumping effect, Integrated compressor, Step sequencer, Envelope generator, Easy-to-understand interface

**Features:** Vision Pro support

**In-app purchases:** none


### lo

[App page](https://appshunter.io/ios/app/lo-fi-af/id6444068732)

This app offers a versatile toolkit for manipulating audio with a variety of lo-fi effects. Explore historical audio degradation, modern digital artifacts, and analog warmth to transform your sound.

**Highlights:** Convolution reverb with unique impulse responses, Spectral processing for MP3 simulation and pitch shifting, Digital section with bitcrusher and CD stutter, Analog section with tape saturation and noise generation, Rearrangeable processing sections, Dozens of presets for sound warping

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pumphouse free?

Pumphouse costs $0.99, with no in-app purchases.

### Is lo free?

lo costs $9.99, with no in-app purchases.

### Which has better reviews, Pumphouse or lo?

lo is rated higher. Pumphouse averages 4.3 out of 5 from 6 ratings, while lo averages 5.0 from 29 ratings.

### Do Pumphouse or lo have ads?

Neither Pumphouse nor lo shows ads.

### Which is updated more often, Pumphouse or lo?

Pumphouse ships an update every 4 months, and lo fortnightly. Most recently, Pumphouse was updated on October 26, 2026 and lo on October 23, 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.*