Ampero II Stage vs GP Tone Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ampero II Stage
Manage your amp modeler and effects processor with an intuitive interface. Access full effects chains, download and share patches from a growing community, and perform bulk operations on your presets.
- Full effects chain and parameter management
- Download and upload patches via Hotone Community
- Intuitive user interface
- Bulk import/export of preset files
- Batch categorization, annotation, and deletion of presets
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This app is designed to manage the Hotone Ampero II Stage Amp Modeler/Effects Processor. With the app you can get access to full effects chain/parameters, download/upload patches via Hotone Community, etc. • Intuitive Ul The Ampero II Stage app features a straight forward, intuitive user interface which makes tweaking parameters a breeze. • The growing community Sigh in with a Hotone account so you can launch Hotone Community to view Ampero II Stage's growing patch library, download the patches made by worldwide players/artists or just share your stellar patches. • Bulk operations You can not only import/export preset files in bulk through this app, but also batch categorize, annotate, delete, and so on your presets. For more Ampero II Stage information: www.hotoneaudio.com *Bluetooth® is a trademark owned by the Bluetooth SIG, Inc. This trademark was used merely to identify a functional characteristic of the product.
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.
- AI tone analysis for guitar and bass
- Bluetooth patch transfer
- Song audio separation
- Multi-section tone mapping
- Direct hardware integration
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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
Screenshots
Verdict
The clearest difference is review sentiment: GP Tone Builder at 100% against Ampero II Stage's 57%. GP Tone Builder also leads on rating (5.0 vs 3.6) and update cadence (every 3 weeks vs every 3 months). Ampero II Stage's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On price, ratings volume, ads 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. GP Tone Builder sells 1 in-app purchase, starting at $29.99 per year. Ampero II Stage asks for nothing beyond the download.
GP Tone Builder holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 57% of Ampero II Stage's written reviews are positive against 100% of GP Tone Builder's.
Ampero II Stage ships an update every 3 months, GP Tone Builder every 3 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | Ampero II Stage | GP Tone Builder |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (7 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 57.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 3 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 224 MB | 16 MB |
| Age rating | 17+ | 4+ |
| Developer | Hotone | aziz bou harb |
Customer experience
Ampero II Stage
GP Tone Builder
In-app purchases
Ampero II Stage
No in-app purchases
GP Tone Builder
- Unlimited Access$29.991 Year
Questions
Is Ampero II Stage free?
Is GP Tone Builder free?
Which has better reviews, Ampero II Stage or GP Tone Builder?
Do Ampero II Stage or GP Tone Builder have ads?
Which is updated more often, Ampero II Stage or GP Tone Builder?
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