# Stellr vs Phosphor 3

The clearest difference is rating: Phosphor 3 at 4.7 against Stellr's 3.4. Phosphor 3 also leads on update cadence (every 11 months vs every 40 months) and review sentiment (79% vs 67%). Stellr's advantage is device support (3 vs 1) and price ($4.99 vs $5.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Stellr costs $4.99 and Phosphor 3 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Phosphor 3 holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 9 and 9 respectively. Written reviews point the same way: 67% of Stellr's written reviews are positive against 79% of Phosphor 3's.

Stellr ships an update every 40 months, Phosphor 3 every 11 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stellr | Phosphor 3 |
| --- | --- | --- |
| Price | **$4.99** | $5.99 |
| Rating | [3.4 (9 ratings)](https://appshunter.io/ios/app/stellr/id1448350913/reviews) | **[4.7 (9 ratings)](https://appshunter.io/ios/app/phosphor-3/id1499115553/reviews)** |
| Number of ratings | 9 | 9 |
| Positive reviews | 66.7% of reviews | **78.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 11 months** |
| Monetization | Paid | Paid |
| Size | 26 MB | 27 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [BACKPULLVER SOFTWARE LTD OOD](https://appshunter.io/developer/1035157788) | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) |

## What reviewers say

### Stellr

[App page](https://appshunter.io/ios/app/stellr/id1448350913)

Create deep, ethereal ambiance with a pitch-shifter, dual delays, and reverb. Explore sonic possibilities with 15 presets, randomization, and parameter automation. Enhance your music with a new dimension of sound.

**Highlights:** Pitch shifter with fine-tuning or semitone snap, Two independent delays for complex feedback, LFO modulation and various reverb types, Pre-gain and dry/wet level control, Audio Unit Extension, Audiobus, Inter-App Audio support, 15 built-in presets with import/export, Realtime frequency spectrum visualizer

**Features:** macOS Compatibility

**In-app purchases:** none


### Phosphor 3

[App page](https://appshunter.io/ios/app/phosphor-3/id1499115553)

This app recreates a vintage digital synthesizer, offering a faithful emulation of a classic sound engine. It includes modern features like MPE, extensive modulation, and a new UI for sonic exploration.

**Highlights:** Vintage digital synthesizer emulation, Additive synthesis engine, MPE support, Extensive modulation routing, Preset manager, Tuning tables

**In-app purchases:** none


## Frequently asked questions

### Is Stellr free?

Stellr costs $4.99, with no in-app purchases.

### Is Phosphor 3 free?

Phosphor 3 costs $5.99, with no in-app purchases.

### Which has better reviews, Stellr or Phosphor 3?

Phosphor 3 is rated higher. Stellr averages 3.4 out of 5 from 9 ratings, while Phosphor 3 averages 4.7 from 9 ratings.

### Do Stellr or Phosphor 3 have ads?

Neither Stellr nor Phosphor 3 shows ads.

### Which is updated more often, Stellr or Phosphor 3?

Stellr ships an update every 40 months, and Phosphor 3 every 11 months. Most recently, Stellr was updated on October 19, 2026 and Phosphor 3 on October 24, 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.*