# Sting 25 vs NuRack Auv3 FX Processor

The clearest difference is price: Sting 25 at Free against NuRack Auv3 FX Processor's $12.99. Sting 25 also leads on iOS requirement (8.0 vs 13). NuRack Auv3 FX Processor's advantage is rating (4.7 vs 3.9) and review sentiment (84% vs 65%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Sting 25 is free to download; NuRack Auv3 FX Processor costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NuRack Auv3 FX Processor holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 15 and 41 respectively. Written reviews point the same way: 65% of Sting 25's written reviews are positive against 84% of NuRack Auv3 FX Processor's.

Sting 25 ships an update monthly, NuRack Auv3 FX Processor every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sting 25 | NuRack Auv3 FX Processor |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | [3.9 (15 ratings)](https://appshunter.io/ios/app/sting-25/id478115302/reviews) | **[4.7 (41 ratings)](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960/reviews)** |
| Number of ratings | 15 | **41** |
| Positive reviews | 64.5% of reviews | **84.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 1.6 GB | 26 MB |
| Requires iOS | **8.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RadicalMedia, LLC](https://appshunter.io/developer/400164871) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Sting 25

[App page](https://appshunter.io/ios/app/sting-25/id478115302)

Explore the 25-year solo career of a renowned musician through exclusive concert footage, interviews, and personal stories. Discover influences, activism, and artistry with unparalleled access to rare photos and handwritten lyrics.

**Highlights:** Exclusive concert footage, Behind-the-scenes access, In-depth interviews, Handwritten lyrics and journal entries, 360 degree instrument views, Chronological career chapters

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎬 Extensive concert footage and exclusive 60th birthday concert videos
- 🎨 Beautiful, intuitive, and well-designed user interface
- 📚 Comprehensive career retrospective with rare archival material
- 🎵 Rich multimedia content including photos, interviews, and performances
- 💰 Free app with premium content

**What reviewers complain about**

- 🐛 Video playback frequently broken or non-functional
- 🔇 No sound or audio issues in videos
- ⏳ Extremely slow video streaming and loading times
- ❌ App crashes and freezes when accessing concert content
- 🚫 Fails to load or gets stuck on splash screen

**Reported bugs**

- Concert video playback fails or crashes
- No audio or sound in video content
- App hangs at splash screen and won't load
- Videos freeze and buffer continuously
- App crashes when tapping on concert footage

**Requested features**

- Full concert performances available for purchase or download
- Release entire concert on Blu-Ray
- Regular content updates with new concert footage and behind-the-scenes material
- Ability to purchase and download birthday concert performances
- Background music persistence when switching between apps


### NuRack Auv3 FX Processor

[App page](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960)

Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.

**Highlights:** Design custom effects racks, Over 80 audio and MIDI building blocks, Full routing control (series/parallel), Customizable interface builder, Seamless effect switching, 3 independent audio racks mode, Extensive automation options

**In-app purchases:** none


## Frequently asked questions

### Is Sting 25 free?

Sting 25 is free to download, with no in-app purchases.

### Is NuRack Auv3 FX Processor free?

NuRack Auv3 FX Processor costs $12.99, with no in-app purchases.

### Which has better reviews, Sting 25 or NuRack Auv3 FX Processor?

NuRack Auv3 FX Processor is rated higher. Sting 25 averages 3.9 out of 5 from 15 ratings, while NuRack Auv3 FX Processor averages 4.7 from 41 ratings.

### Do Sting 25 or NuRack Auv3 FX Processor have ads?

Neither Sting 25 nor NuRack Auv3 FX Processor shows ads.

### Which is updated more often, Sting 25 or NuRack Auv3 FX Processor?

Sting 25 ships an update monthly, and NuRack Auv3 FX Processor every 3 weeks. Most recently, Sting 25 was updated on November 1, 2026 and NuRack Auv3 FX Processor 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.*