REACTOR vs Restrings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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.
Restrings
A private log for guitarists to track string changes, including set, gauge, tuning, and notes. Compare past sets and feedback to confidently choose your next string set. Stores data in iCloud for cross-device syncing.
- Log string set, gauge, and tuning
- Add notes on string feel
- Attach photos of string packs
- View restring history per instrument
- Compare past string sets
- Private iCloud storage and syncing
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Know exactly when you last changed your strings, and what to put on next. Restrings is a simple, private log for guitarists who play often, own more than one guitar, and like experimenting with string sets and tunings. Instead of digging through notes apps, spreadsheets, or old photos of string packs, keep every restring in one place, organized by instrument. LOG EVERY RESTRING Record the string set, gauge, tuning, and setup for each change, add notes on how the strings felt, and select up to 2 photos of the pack - front and back. SEE YOUR HISTORY Browse the full restring history for each guitar and see how often you actually change strings. DECIDE WHAT'S NEXT Compare past sets and your own feedback to choose the next set with confidence. PRIVATE BY DESIGN Your instruments, logs, and photos are stored in your own iCloud account and sync across your Apple devices. No account, no sign-up, no ads. WORKS OFFLINE Log a restring with no connection at all. Everything saves on your device first and syncs through iCloud when you’re back online. FREE AND PRO Add unlimited guitars and log unlimited restrings on your first instrument for free. Restrings Pro unlocks unlimited restrings on every instrument. Restrings Pro is an auto-renewing subscription. Payment is charged to your Apple Account, and it renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://restrings.app/privacy-policy Terms of Use: https://restrings.app/terms-of-service
Screenshots
Verdict
The clearest difference is review sentiment: Restrings at 100% against REACTOR's 44%. Restrings also leads on rating (5.0 vs 3.6) and update cadence (every 6 days vs every 3 weeks). REACTOR's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support 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. Restrings sells 2 in-app purchases, starting at $1.99 per month. REACTOR asks for nothing beyond the download.
Restrings holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: REACTOR has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 44% of REACTOR's written reviews are positive against 100% of Restrings's.
REACTOR ships an update every 3 weeks, Restrings every 6 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | REACTOR | Restrings |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (26 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 44.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 26 — better | 3 |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 458 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Positive Grid Inc | playability labs LLC |
Customer experience
REACTOR
Restrings
In-app purchases
REACTOR
No in-app purchases
Restrings
- Monthly$1.991 Month
- Annual$19.991 Year









