Comparison

GP Tone Builder vs NAM A2 Player

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GP Tone Builder

This app uses AI to analyze the guitar or bass tone of any song and create playable patches for your Valeton multi-effects processor. It isolates tracks, analyzes spectral features, and maps tones to your device's effects via Bluetooth.

Highlights
  • AI tone analysis for guitar and bass
  • Bluetooth patch transfer
  • Song audio separation
  • Multi-section tone mapping
  • Direct hardware integration
Features
Read full description

GP Tone Builder uses AI to analyze the guitar and bass tone of any song and map it directly to the effects and parameters on your Valeton multi-effects processor. Search for a song, pick guitar or bass, and the app does the rest — from audio separation to tone analysis to sending the patch straight to your device over Bluetooth. HOW IT WORKS 1. Enter a song name and select Guitar or Bass. 2. The app downloads the audio and isolates the guitar or bass track using AI-powered stem separation. 3. Advanced audio analysis extracts spectral features, detects the key, and identifies distinct tone sections — clean intros, overdriven verses, distorted choruses, and more. 4. AI maps the analyzed tone to the exact effects, amp models, and parameter values available on your Valeton processor. 5. Send the patch to your device instantly via Bluetooth Low Energy. DETAILED TONE ANALYSIS Every song is broken down into multiple tone sections, so you get a patch for each part of the song, not just a single average. CHOOSE YOUR SIGNAL CHAIN Build every patch around a full amp head and cabinet, or around SnapTone captures — switch between Amp+Cab and SnapTone before you analyze, and the whole chain is built for the one you chose. DOWNLOAD AND KEEP YOUR PATCHES Save any patch as a preset file to your device. Load it later, keep a library of your favourites, or transfer it however you like — the patch is yours once it's built. BUILT FOR YOUR VALETON HARDWARE GP Tone Builder uses the same effects, amp models, and parameter ranges as the official Valeton firmware. Every patch is built from the ground up for the specific processor you own. BLUETOOTH CONNECTIVITY Pair your processor and send patches directly from the app. No cables, no file transfers, no manual entry. SUPPORTED DEVICES - Valeton GP-5 - Valeton GP-50 - Valeton GP-150 - Valeton GP-180 SUBSCRIPTION Try free with 3 song analyses. Continue with $29.99/year for unlimited access. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.bouharb.com/privacy.html

About

NAM A2 Player

Transform your mobile device into a powerful AI-driven guitar effects processor. Load custom amplifier and pedal models, add cabinet impulse responses, and shape your sound with a variety of effects. Save and recall presets, and use it directly within your favorite digital audio workstation.

Highlights
  • AI-powered guitar rig
  • AUv3 support for DAWs
  • Load custom amp and pedal models
  • Cabinet Impulse Response (IR) loader
  • Built-in effects (modulation, delay, reverb)
  • Noise gate and EQ
  • Preset saving and MIDI control
  • Integrated tuner
Features
Read full description

NAM A2 Player turns your iPhone or iPad into a complete AI-powered guitar rig, with full AUv3 support. Load your favorite NAM and NAM A2 amplifier or pedal models, add cabinet impulse responses, shape your sound and save complete rigs as presets. Use it as AUv3 in your favorite DAW, add your favorites FXs in standalone version. FEATURES • AUv3 Effect Hosting & AUv3 Audio Effect • NAM A1 and NAM A2 model support • NAM A2 submodel selection and metadata • Noise gate with smooth release and AUv3 Audio Effect Hosting • Dedicated Wah & Pedal / Comp modules with AUv3 Audio Effect Hosting • Dedicated NAM amplifier module • Cabinet IR loader with Single and Dual modes, A/B blending, independent levels, Low Cut and High Cut filters and adjustable alignment delay • 10-band graphic EQ • Modulation, delay & reverb effects and AUv3 Audio Effect Hosting, with tails controls • Boost and lead controls • Input, output - with peak indicators & precision mode -, CPU and latency meters • 5 presets from Komposition101 • MIDI in standalone and AUv3 versions and MIDI learn in standalone version • User presets with MIDI control in standalone version • Built-in tuner with output mute • Built-in metronome with 1–400 BPM, Tap Tempo, adjustable volume and beat accent • Adjustable audio buffer size • Integrated AI assistant • Quick access to TONE3000 • Verified for Mac with Apple silicon Connect a compatible audio interface, load your models and build your dream guitar tone - all inside one app, for free! NAM A2 Player is available for iPhone & iPad and verified for MacOS.

Screenshots

GP Tone Builder4 screens
NAM A2 Player4 screens

Verdict

The call

The clearest difference is in-app purchases: NAM A2 Player at none against GP Tone Builder's 1. NAM A2 Player also leads on update cadence (every 9 days vs every 3 weeks). On price, rating, review sentiment and ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GP Tone Builder sells 1 in-app purchase, starting at $29.99 per year. NAM A2 Player asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for GP Tone Builder against 5.0 for NAM A2 Player. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

GP Tone Builder ships an update every 3 weeks, NAM A2 Player every 9 days. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
GP Tone Builder versus NAM A2 Player: the parameters behind the verdict, then further details
ParameterGP Tone BuilderNAM A2 Player
PriceFreeFree
Rating5.0 (3 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings34 — better
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size16 MB26 MB
Age rating4+4+
Developeraziz bou harbHeavensDelegate

Customer experience

GP Tone Builder

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NAM A2 Player

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

GP Tone Builder

Subscriptions1
  • Unlimited Access$29.991 Year
None

NAM A2 Player

No in-app purchases

Questions

Is GP Tone Builder free?
GP Tone Builder is free to download, with in-app purchases available.
Is NAM A2 Player free?
NAM A2 Player is free to download, with no in-app purchases.
Which has better reviews, GP Tone Builder or NAM A2 Player?
GP Tone Builder and NAM A2 Player are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.
Do GP Tone Builder or NAM A2 Player have ads?
Neither GP Tone Builder nor NAM A2 Player shows ads.
Which is updated more often, GP Tone Builder or NAM A2 Player?
GP Tone Builder ships an update every 3 weeks, and NAM A2 Player every 9 days. Most recently, GP Tone Builder was updated on October 7, 2026 and NAM A2 Player on October 13, 2026.

Other comparisons