# StemFM vs Audiolog

The clearest difference is device support: Audiolog at 3 against StemFM's 1. Audiolog also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. StemFM sells 6 in-app purchases, starting at $19.99 per month and Audiolog sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

StemFM ships an update every 5 days, Audiolog weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | StemFM | Audiolog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (33 ratings)](https://appshunter.io/ios/app/stemfm/id6753893767/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 74.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 156 MB | 51 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [Stem US Inc.](https://appshunter.io/developer/1845542230) | [Alexander Julian](https://appshunter.io/developer/1869353739) |

## What reviewers say

### StemFM

[App page](https://appshunter.io/ios/app/stemfm/id6753893767)

Explore a vast music library, remix songs by isolating stems, and enjoy AI-powered DJ sets. Discover new releases, create personalized stations, and support artists with a fair pay system.

**Highlights:** Extensive music library, Real-time stem separation, AI DJ sets, Customizable artist stations, Seamless track mixing, Fair artist pay system

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StemFM Monthly Premium | $19.99 | per month |
| StemFM Yearly Premium | $199.99 | per year |
| 1 Stem Set | $0.99 | one-time |
| 6 Stem Sets | $4.99 | one-time |
| 15 Stem Sets | $9.99 | one-time |
| 40 Stem Sets | $21.99 | one-time |


### Audiolog

[App page](https://appshunter.io/ios/app/audiolog/id6757864257)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audiolog Premium Monthly | $2.99 | per month |
| Audiolog Premium Yearly | $17.99 | per year |


## Frequently asked questions

### Is StemFM free?

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

### Is Audiolog free?

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

### Do StemFM or Audiolog have ads?

Neither StemFM nor Audiolog shows ads.

### Which is updated more often, StemFM or Audiolog?

StemFM ships an update every 5 days, and Audiolog weekly. Most recently, StemFM was updated on October 25, 2026 and Audiolog 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.*