# Time Stretch (Speed Change) vs EQ550

The clearest difference is rating: EQ550 at 4.5 against Time Stretch (Speed Change)'s 3.6. EQ550 also leads on ads (none vs shown) and iOS requirement (10.0 vs 16.0). Time Stretch (Speed Change)'s advantage is review sentiment (66% vs 33%). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Time Stretch (Speed Change) sells 2 one-off in-app purchases and EQ550 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

EQ550 holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 21 and 11 respectively. Written reviews complicate that: 66% of Time Stretch (Speed Change)'s written reviews are positive against 33% of EQ550's, so the app with the better star average is not the one people write more warmly about.

Time Stretch (Speed Change) ships an update every 6 weeks, EQ550 monthly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Time Stretch (Speed Change) | EQ550 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (21 ratings)](https://appshunter.io/ios/app/time-stretch-speed-change/id637376117/reviews) | **[4.5 (11 ratings)](https://appshunter.io/ios/app/eq550/id1507132030/reviews)** |
| Number of ratings | **21** | 11 |
| Positive reviews | **65.8% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 20 MB |
| Requires iOS | 16.0 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### Time Stretch (Speed Change)

[App page](https://appshunter.io/ios/app/time-stretch-speed-change/id637376117)

This music player allows real-time audio processing, including adjustable playback speed and a 31-band equalizer. It supports AUv3 effects, A-B looping, and background playback, with options to import audio files from other apps.

**Highlights:** Real-time time stretch (50-200%), 31-band equalizer with presets, AUv3 effects support, A-B loop playback, Center Cancel/Emphasis, Background playback, Audio file export

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 31 bands equalizer | $0.99 | one-time |
| Always remove banner ads. | $2.99 | one-time |


### EQ550

[App page](https://appshunter.io/ios/app/eq550/id1507132030)

This audio effect plugin emulates classic American EQs from the late 1960s, offering precise control over equalization with unique Proportional Q technology. It functions as a standalone app or an AUv3 plugin for compatible hosts, providing a flexible and characterful sound shaping experience.

**Highlights:** Standalone and AUv3 plugin, 3 bands of classic American equalization, Proportional Q filter bandwidth, Stereo, Mid, or Side EQ modes, Undo/Redo and A/B comparison, Scalable GUI

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS EQ550 Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is Time Stretch (Speed Change) free?

Time Stretch (Speed Change) is free to download, with in-app purchases available.

### Is EQ550 free?

EQ550 is free to download, with in-app purchases available.

### Which has better reviews, Time Stretch (Speed Change) or EQ550?

EQ550 is rated higher. Time Stretch (Speed Change) averages 3.6 out of 5 from 21 ratings, while EQ550 averages 4.5 from 11 ratings.

### Do Time Stretch (Speed Change) or EQ550 have ads?

Time Stretch (Speed Change) shows ads; EQ550 does not.

### Which is updated more often, Time Stretch (Speed Change) or EQ550?

Time Stretch (Speed Change) ships an update every 6 weeks, and EQ550 monthly. Most recently, Time Stretch (Speed Change) was updated on November 1, 2026 and EQ550 on November 3, 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.*