Catalyst Edit vs REACTOR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Catalyst Edit
Control and customize your Line 6 Catalyst amplifier directly from your iOS device. Save and load presets, tune your guitar, and access advanced DSP parameters for a more personalized sound.
- Load and save presets
- Store presets on amp
- Guitar tuning
- Access DSP parameters
- iOS device control
Read full descriptionHide full description
Use your iOS device to unlock the full potential of your Line 6 Catalyst amplifier. Load and save presets from your iOS device, store presets on your Catalyst Amp, tune your guitar, and access DSP parameters that cannot be edited directly on your Catalyst amplifier.
REACTOR
This app generates guitar tones by analyzing audio, images, or text descriptions. It offers deep control over amp models and effects, allowing users to create, save, and share custom sounds with a community. Requires a compatible amplifier for full functionality.
- AI-powered tone generation from audio, image, or text
- 24 amp models with deep parameter control
- 8 simultaneous effect slots
- Drag-and-drop signal path editing
- Custom amp creation and sharing
- Preset library and onboard amp slots
- Built-in tuner
Read full descriptionHide full description
Your imagination deserves an amplifier. REACTOR is the companion app for the REACTOR intelligent guitar combo amp — powered by Amp Intelligence™, a sound engine trained on over 1 million tones and the circuit-level DNA of 200+ legendary amp designs. Type an idea. Snap a photo. Drop in a recording. REACTOR builds the full signal chain in seconds. CREATOR HUB — THREE WAYS TO BUILD TONE • Audio to Tone. Upload a track or record a clip. Amp Intelligence analyzes the sound and rebuilds it as a playable guitar tone. • Image to Tone. See an amp, a pedalboard, or a setup that inspires you. Snap it. The app turns the photo into a matching tone. • Text to Tone. Describe an amp, an artist, or a feel in your own words. Amp Intelligence figures out the signal chain and makes it playable. • Build your own amps. Combine characteristics, shape deep parameters, and create original amp voices that don't exist anywhere else. Name them, save them, share them. DEEP CONTROL, INSTANT CHANGES • 24 amp models to start — full parameter access to gain structure, EQ, bias, and voicing • 8 simultaneous effect slots across Gate, Compressor, Drive, Modulation, Delay, Reverb, Wah, and EQ • Drag-and-drop signal path — reorder effects anywhere, insert the FX loop at any point • Unlimited preset library, organized by song, session, or genre • Assign presets to 8 onboard amp slots for instant recall on stage • Built-in tuner TONE MEMORY REACTOR remembers your prompts, inputs, and adjustments. Every time you create, it starts closer to the sound in your head. TONECLOUD Browse and download tones and custom amps from other players. Share your own. Discover patches built by artists and the global REACTOR community. CONNECTS TO YOUR AMP Pair over Bluetooth or Wi-Fi. Push presets and custom amps to your REACTOR combo amp. Pull them back to the app to edit, refine, or share. Now tone answers to you. — Requires a REACTOR 50 or REACTOR 100 amp for full functionality.
Screenshots
Verdict
The clearest difference is rating: Catalyst Edit at 4.7 against REACTOR's 3.4. Catalyst Edit also leads on ratings volume (254 vs 23) and device support (3 vs 1). REACTOR's advantage is review sentiment (47% vs 27%). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Catalyst Edit holds the better App Store score, 4.7 against 3.4. That said, the two scores are not equally well evidenced: Catalyst Edit has 254 ratings behind it against 23, so its average is the more settled of the two. Written reviews complicate that: 27% of Catalyst Edit's written reviews are positive against 47% of REACTOR's, so the app with the better star average is not the one people write more warmly about.
Catalyst Edit ships an update monthly, REACTOR every 3 weeks. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.
| Parameter | Catalyst Edit | REACTOR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (254 ratings) — better | 3.4 (23 ratings) |
| Positive reviews | 27.3% of reviews | 46.7% of reviews — better |
| Number of ratings | 254 — better | 23 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 713 MB |
| Age rating | 4+ | 4+ |
| Developer | Line 6 | Positive Grid Inc |
Customer experience
Catalyst Edit
REACTOR
In-app purchases
Catalyst Edit
No in-app purchases
REACTOR
No in-app purchases
Questions
Is Catalyst Edit free?
Is REACTOR free?
Which has better reviews, Catalyst Edit or REACTOR?
Do Catalyst Edit or REACTOR have ads?
Which is updated more often, Catalyst Edit or REACTOR?
Other comparisons
