StringKeeper vs AmpGate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StringKeeper
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Never wonder when you last changed your strings again. StringKeeper helps guitarists track string installations across every guitar in their collection, so your instrument always sounds its best. Track Every Guitar: Add all your guitars with photos, names, and notes. See at a glance which ones are due for a string change and which were recently restrung. Log String Changes: Record the string brand, gauge, and date every time you restring. StringKeeper tracks your history so you can see what worked and what didn't. Get Reminded: Set a reminder after a string change and StringKeeper will notify you when it's time to restring — no more playing on dead strings. Log Play Sessions & Maintenance: Track how often you play each guitar and log maintenance records to keep a full history of each instrument. If you notice a guitar has dead strings you can set a "Needs string change" flag which will cause an alert icon to appear next to the guitar. Pick a Guitar to Play: Not sure which guitar to pick up tonight? Use the slot machine to let StringKeeper choose for you.
AmpGate
This app provides a real-time amplifier simulator for mobile devices, featuring exact digital captures of real amplifiers and full rigs. It allows users to browse and audition a vast library of tones, load custom impulse responses, and import their own captures. It also functions as an AUv3 plugin for use in music production hosts.
- Real-time amp simulation
- Vast tone library access
- Cabinet section with IR loader
- Noise gate and gain controls
- Low-latency processing
- AUv3 plugin compatibility
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Every amp ever, in your pocket. AmpGate is a Neural Amp Modeler (NAM) player for iPhone and iPad: a real-time amp sim that plays exact digital captures of real amplifiers and full rigs, including the new Architecture 2 (A2) models, the most accurate generation of neural captures yet. BROWSE HUNDREDS OF THOUSANDS OF TONES Connect your free TONE3000 account and the world's largest tone library opens right inside the app. Search by amp, gear or genre, audition any capture through your own guitar before saving it, and build your collection with one tap. - NAM engine with A2 model support - Cabinet section with impulse response loader, browse TONE3000 IRs or import your own WAV files - Tone stack (bass / mid / treble), noise gate, input and output gain - Low-latency processing tuned for live playing - Import your own .nam captures from the Files app AUv3 PLUGIN INCLUDED Load AmpGate inside GarageBand, Logic Pro, AUM, Loopy Pro, Cubasis and any other AUv3 host. The app and the plugin share one library: save a tone and it's already in your session. Neural Amp Modeler is an open-source project by Steven Atkinson. TONE3000 is a free third-party service; an account is optional.
Screenshots
Verdict
The clearest difference is update cadence: StringKeeper at every 2 days against AmpGate's every 3 weeks. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
StringKeeper ships an update every 2 days, AmpGate every 3 weeks. The most recent releases landed on October 6, 2026 and September 23, 2026 respectively.
| Parameter | StringKeeper | AmpGate |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | John Carleton | MATTEO DEMETRIO ZANARDI |
In-app purchases
StringKeeper
No in-app purchases
AmpGate
No in-app purchases









