# Session Tracks vs PX1 FM Synth

The clearest difference is price: Session Tracks at Free against PX1 FM Synth's $14.99. Session Tracks also leads on iOS requirement (9.0 vs 17.6). PX1 FM Synth's advantage is in-app purchases (none vs 10) and update cadence (every 2 weeks vs every 5 months). On rating, ratings volume, ads and device support there is nothing between them.

Session Tracks is free to download; PX1 FM Synth costs $14.99 up front. Session Tracks sells 10 one-off in-app purchases. PX1 FM Synth asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Session Tracks against 5.0 for PX1 FM Synth. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Session Tracks ships an update every 5 months, PX1 FM Synth every 2 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Session Tracks | PX1 FM Synth |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/session-tracks/id1161312941/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/px1-fm-synth/id6785258298/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 62 MB | 121 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Music Stem Works LLC](https://appshunter.io/developer/1161312130) | [Peter Sjogren](https://appshunter.io/developer/1268263124) |

## What reviewers say

### Session Tracks

[App page](https://appshunter.io/ios/app/session-tracks/id1161312941)

Explore music like never before with a multi-track player and store. Isolate, adjust, and learn individual instrument and vocal parts. Purchase diverse music catalogs to play along or analyze.

**Highlights:** Multi-track music store, Purchase multi-track music data, Manage purchased music, Play up to 10 independent tracks, Mute and solo track functions, Adjust volume and localization, Rewind, repeat, set repeat points

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Do it Right | $1.99 | one-time |
| Take It From Me | $1.99 | one-time |
| Big Papa's Home Groove | $1.99 | one-time |
| My Grandfather's Clock | $1.99 | one-time |
| Oh Happy Day | $1.99 | one-time |
| You'll Never Walk Alone | $1.99 | one-time |
| Sukiyaki | $1.99 | one-time |
| Here Comes the Sun | $1.99 | one-time |
| Liverpool Abbey, Because | $1.99 | one-time |
| Ralph Rolle Funky Groove Tracks | $17.99 | one-time |


### PX1 FM Synth

[App page](https://appshunter.io/ios/app/px1-fm-synth/id6785258298)

Create rich, wide stereo sounds with a dual-engine FM synthesizer. Explore classic 1980s digital synth tones, from electric pianos to metallic bells, with extensive operator and envelope controls. It functions as a standalone app or an AUv3 plugin for music production.

**Highlights:** Dual independent 6-operator FM engines, 32 classic FM algorithms, Per-operator envelopes and pan, Five macro knobs for sound shaping, Built-in reverb, AUv3 plugin support, Random patch generator

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Session Tracks free?

Session Tracks is free to download, with in-app purchases available.

### Is PX1 FM Synth free?

PX1 FM Synth costs $14.99, with no in-app purchases.

### Which has better reviews, Session Tracks or PX1 FM Synth?

Session Tracks and PX1 FM Synth are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Session Tracks or PX1 FM Synth have ads?

Neither Session Tracks nor PX1 FM Synth shows ads.

### Which is updated more often, Session Tracks or PX1 FM Synth?

Session Tracks ships an update every 5 months, and PX1 FM Synth every 2 weeks. Most recently, Session Tracks was updated on October 7, 2026 and PX1 FM Synth on October 8, 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.*