# 1981 FM vs Sampledex Effect Shift

The clearest difference is in-app purchases: Sampledex Effect Shift at none against 1981 FM's 1. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. 1981 FM sells 1 one-off in-app purchase. Sampledex Effect Shift asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 1981 FM against 5.0 for Sampledex Effect Shift. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

## The numbers

| Metric | 1981 FM | Sampledex Effect Shift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/1981-fm-80s-track-generator/id6805325447/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/sampledex-effect-shift/id6817936787/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Soft Brew Mobile](https://appshunter.io/developer/561703410) | [Robert Clemons](https://appshunter.io/developer/1896689099) |

## What reviewers say

### 1981 FM

[App page](https://appshunter.io/ios/app/1981-fm-80s-track-generator/id6805325447)

This app generates complete, unique musical tracks using chaotic mathematical principles. It offers various styles, modes, and keys, with customizable FM synth sounds and effects. Tracks can be recreated using seeds and exported via MIDI.

**Highlights:** Chaos-driven track generation, Four-operator FM synth engine, Multiple musical styles and modes, MIDI export and input, Customizable effects (chorus, delay, reverb), Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AUv3 Unlock | $2.99 | one-time |


### Sampledex Effect Shift

[App page](https://appshunter.io/ios/app/sampledex-effect-shift/id6817936787)

This app offers a versatile audio effects suite with 50 distinct effects, seven macro controls, and a seven-band EQ. Shape sounds with various parameters, explore factory presets, and integrate into your music workflow via AUv3 extension or live input processing.

**Highlights:** 50 effect choices, Seven hands-on macro controls, Seven-band Bender EQ, 51 factory presets, AUv3 audio effect extension, Live input processing, EQ A/B comparison

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

**In-app purchases:** none


## Frequently asked questions

### Is 1981 FM free?

1981 FM is free to download, with in-app purchases available.

### Is Sampledex Effect Shift free?

Sampledex Effect Shift is free to download, with no in-app purchases.

### Which has better reviews, 1981 FM or Sampledex Effect Shift?

1981 FM and Sampledex Effect Shift are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do 1981 FM or Sampledex Effect Shift have ads?

Neither 1981 FM nor Sampledex Effect Shift shows ads.

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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.*