# Kosmonaut vs lo

The clearest difference is review sentiment: Kosmonaut at 94% against lo's 67%. Kosmonaut also leads on price ($3.99 vs $9.99). lo's advantage is rating (5.0 vs 4.8). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Kosmonaut costs $3.99 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 4.8. Both are backed by a comparable volume of ratings — 68 and 29 respectively. Written reviews complicate that: 94% of Kosmonaut's written reviews are positive against 67% of lo's, so the app with the better star average is not the one people write more warmly about.

Kosmonaut ships an update every 8 days, lo fortnightly. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Kosmonaut | lo |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | [4.8 (68 ratings)](https://appshunter.io/ios/app/kosmonaut/id1351237773/reviews) | **[5.0 (29 ratings)](https://appshunter.io/ios/app/lo-fi-af/id6444068732/reviews)** |
| Number of ratings | **68** | 29 |
| Positive reviews | **93.8% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Paid | Paid |
| Size | 4 MB | 17 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bram Bos](https://appshunter.io/developer/325340444) | [Unfiltered Audio](https://appshunter.io/developer/1638381375) |

## What reviewers say

### Kosmonaut

[App page](https://appshunter.io/ios/app/kosmonaut/id1351237773)

This audio effect plugin adds echoes and spatial depth to your music. It features a tape looper, multi-tap delay, filters, autopanner, and ambiance generator to create unique soundscapes. Save and recall your custom presets across different music production apps.

**Highlights:** Tape looper with sound-on-sound decay, 4-Tap Delay with complex feedback, LP/HP filters with LFO, Autopanner, Ambiance Generator, Haas Effect Processor, User preset saving

**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 Kosmonaut free?

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

### Is lo free?

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

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

lo is rated higher. Kosmonaut averages 4.8 out of 5 from 68 ratings, while lo averages 5.0 from 29 ratings.

### Do Kosmonaut or lo have ads?

Neither Kosmonaut nor lo shows ads.

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

Kosmonaut ships an update every 8 days, and lo fortnightly. Most recently, Kosmonaut was updated on October 8, 2026 and lo on October 6, 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.*