# SL950 vs variStretch

The clearest difference is price: variStretch at $5.99 against SL950's $24.99. SL950's advantage is update cadence (every 4 days vs every 7 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SL950 costs $24.99 and variStretch $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SL950 ships an update every 4 days, variStretch every 7 months. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SL950 | variStretch |
| --- | --- | --- |
| Price | $24.99 | **$5.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/varistretch/id6744925479/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 7 months |
| Monetization | — | Paid |
| Size | 24 MB | 15 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Delta Seven Kft.](https://appshunter.io/developer/1355331300) | [Satoshi Kajii](https://appshunter.io/developer/1777441634) |

## What reviewers say

### SL950

[App page](https://appshunter.io/ios/app/sl950/id6502950757)

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

**In-app purchases:** none


### variStretch

[App page](https://appshunter.io/ios/app/varistretch/id6744925479)

This app allows real-time audio speed manipulation without altering pitch. It offers three distinct playback modes and adjustable buffer settings for precise control over sound processing.

**Highlights:** Real-time speed adjustment (0.5-2.0x), Tape mode (speed & pitch change), Phase Vocoder mode (speed only), Adjustable buffer size, Buffer clear function, AUv3 host compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SL950 free?

SL950 costs $24.99, with no in-app purchases.

### Is variStretch free?

variStretch costs $5.99, with no in-app purchases.

### Do SL950 or variStretch have ads?

Neither SL950 nor variStretch shows ads.

### Which is updated more often, SL950 or variStretch?

SL950 ships an update every 4 days, and variStretch every 7 months. Most recently, SL950 was updated on October 6, 2026 and variStretch on October 18, 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.*