Comparison

BTS for GX vs SonoSpec

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

Head to head
About

BTS for GX

This app allows you to connect your BOSS GX-10 device to your iPhone or iPad via Bluetooth. It offers functions for downloading new tones, editing existing ones, and managing your tone library. Access additional free content through the BOSS TONE EXCHANGE website.

Highlights
  • Bluetooth connectivity
  • Tone editing
  • Tone librarian
  • Download additional tones
  • Access BOSS TONE EXCHANGE
Features
Read full description

BOSS TONE STUDIO dedicated for GX-10. ●Connect the BOSS GX-10 and your iPhone/iPad via Bluetooth to use this app. * BOSS GX-10 and BluetoothR Audio MIDI Dual Adaptor (BT-DUAL) are necessary to use this app. * Set up the Bluetooth connection in the Connection window displayed after the app is launched. ●BOSS TONE STUDIO incorporates convenient functions; ‘Download Function of Additional Tones (Livesets)’, ‘Tone Edit Function’, and ‘Tone Librarian Function’. ●This app provides an integrated access to the BOSS TONE EXCHANGE website offering additional free contents for BOSS products. *An active internet connection is required to download the additional tones (Livesets).

About

SonoSpec

Features
Read full description

SonoSpec turns your iPhone or iPad microphone into a beautiful real-time audio spectrum analyzer. Built for car-audio tuning, room acoustics, HVAC and machinery noise hunting, speaker testing, and anyone who wants to SEE what they're hearing. FOUR VIEWS, ONE INSTRUMENT • Spectrum — live FFT trace with peak hold and a log-frequency grid • Waterfall — scrolling spectrogram that makes tones, sweeps and rattles obvious • Split — spectrum and waterfall together • Octave — 31-band 1/3-octave RTA bars MEASUREMENT-GRADE DETAILS • FFT sizes from 2,048 to 16,384 points (5.9 Hz resolution at 48 kHz) • A, C and Z weighting curves computed per the IEC 61672 formulas • Exact base-10 1/3-octave bands per the IEC 61260 definitions • Peak-hold trace with slow decay, pause/hold, and a drag cursor that reads out the exact frequency and level under your finger • Levels in dBFS with a proper full-scale sine reference and window-bandwidth (ENBW) correction — the numbers mean something BUILT-IN SIGNAL GENERATOR • Pink noise, white noise, sine, log sweep and warble tones — the source half of the RTA workflow • Feed the system under test by cable or USB and watch the response live TARGET CURVES • Overlay a house curve — flat, −3 dB/oct tilt, or a bass-lifted car target — on the live spectrum • Auto-fit positioning: the shape snaps to your measurement, no fiddling SNAPSHOTS & EXPORT • Freeze a measurement and recall it as a ghost overlay for before/after comparison • Share a publication-ready image or CSV with a full metadata header — FFT size, window, weighting — so your data still means something later TUNED TO FEEL LIKE HARDWARE Rendering runs on a dedicated Metal graphics path at the full analysis rate, with a phosphor-and-ember instrument look that's readable at arm's length. On iPad it fills the screen and adapts to Split View and Stage Manager windows. PRIVATE BY CONSTRUCTION Audio is analyzed on-device and never recorded, stored, or transmitted. SonoSpec has no accounts, no ads, no analytics — the app cannot even access the network. One-time purchase. No subscriptions.

Screenshots

BTS for GX2 screens
SonoSpec4 screens

Verdict

The call

The clearest difference is price: BTS for GX at Free against SonoSpec's $9.99. BTS for GX also leads on iOS requirement (11.0 vs 17.0). SonoSpec's advantage is update cadence (every 2 months vs every 8 months). On 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

CostPrice · In-app purchases · Ads · Monetization

BTS for GX is free to download; SonoSpec costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BTS for GX ships an update every 8 months, SonoSpec every 2 months. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 7 level
BTS for GX versus SonoSpec: the parameters behind the verdict, then further details
ParameterBTS for GXSonoSpec
PriceFree — better$9.99
Rating2.5 (4 ratings) — better—
Positive reviews20.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size23 MB1 MB
Age rating4+4+
DeveloperRoland CorporationCorey Thomas Slick

In-app purchases

None

BTS for GX

No in-app purchases

None

SonoSpec

No in-app purchases

Questions

Is BTS for GX free?
BTS for GX is free to download, with no in-app purchases.
Is SonoSpec free?
SonoSpec costs $9.99, with no in-app purchases.
Do BTS for GX or SonoSpec have ads?
Neither BTS for GX nor SonoSpec shows ads.
Which is updated more often, BTS for GX or SonoSpec?
BTS for GX ships an update every 8 months, and SonoSpec every 2 months. Most recently, BTS for GX was updated on November 4, 2026 and SonoSpec on November 8, 2026.

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