Comparison

Piamate Plus vs Bourdon

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

Head to head
About

Piamate Plus

Features
Read full description

Piamate Plus is a companion app for the RB-9000 series. With simple operation of app, you can adjust tone, reverb and other sound preferences, metronome tempo, rhythm and so on. You can also save the performance data from RB-9000 series to your iOS device, where you can send it to someone else via email, or receive new performance data and play it back on your RB-9000 series. The Piamate Plus app supports iTunes sharing, and your performance data can also be managed through iTunes. When connecting to your RB-9000 series via Bluetooth, you can operate it wirelessly. Please Note: in order to cable connect to your RB-9000 series, both an Apple Lightning to USB Camera Adapter and a USB mini B cable are required. [Features] * Sound control - Tone, Reverb, Effect (Chorus, Rotary, Delay), 4 band equalizer, Transpose, User preset * Metronome - Beat, Tempo, Volume * Performance Data - Recording, Playback, Transmission, and E-mail * Demo songs * Adjustments - Piano type, Touch control, Individual key volume, Black key volume, Key depth, Note repeat limit, Pedal position, Tuning, Tuning curve, Panel led, Auto Power Off, Factory reset Note: This app can not be used with the RB-900 series.

About

Bourdon

Features
Read full description

Bourdon is a precise, beautifully simple string tuner for a wide range of instruments. It tracks pitch with a professional algorithm (McLeod/MPM) plus phase refinement that reaches sub-cent accuracy on sustained notes, responding instantly even in noisy rooms — all in a clean, minimalist dark design. SEVEN MODES IN ONE • Needle: an analog VU meter with a damped needle, for the classic tuning feel. • LED: a row of lights in the style of clip-on headstock tuners. The light glides with the note and locks onto the green centre when you nail it. Readable at a glance, even from a distance. • Trace: string-by-string tuner with a smooth visual trail and a real headstock that turns green as you go. • Strobe: the most precise mode. The stripes freeze when you nail the note, down to fractions of a cent. • Strum (beta, guitar only): tap Listen and strum all the strings. Bourdon listens for a few seconds, then gives you the diagnosis: which strings are in tune, which are flat or sharp, and by how much. Great for knowing where to start; for fine tuning, switch to Needle or LED. • Voice: a free chromatic vocal tuner — or set a target note and practice until you nail it. • Drone: a sustained reference tone (warm organ timbre) using your tuning's notes, perfect for singing or tuning by ear. 15 INSTRUMENTS, MANY TUNINGS • Guitar, classical, 7- and 12-string, baritone, 4- and 5-string bass, double bass, ukulele, violin, viola, cello, mandolin, banjo and bouzouki. • Tunings such as Standard E, Drop D, Drop C, half- and whole-step down, DADGAD, Open G/D/E and more. • Create your own tunings and use the capo: target notes shift automatically. • Chromatic mode to tune any note, no strings attached. • Each instrument with its own headstock, so you always know which string you're tuning. • Hear each string's reference note without leaving the tuner. TWEAKS FOR MUSICIANS • Temperaments: Equal, Pythagorean, Just Major, Kirnberger III and Quarter-comma Meantone. • Adjustable A4 reference (432–446 Hz). • Normal and Ultra precision. • In-tune confirmation with sound and haptics. • Directional microphone and input level meter. • Interface in English and Spanish. PRIVATE AND OFFLINE • All processing happens on your device. Nothing is collected or uploaded. Tune your way. String by string.

Screenshots

Piamate Plus3 screens
Bourdon4 screens

Verdict

The call

The clearest difference is update cadence: Bourdon at every 2 months against Piamate Plus's every 13 months. Piamate Plus's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Piamate Plus ships an update every 13 months, Bourdon every 2 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Piamate Plus versus Bourdon: the parameters behind the verdict, then further details
ParameterPiamate PlusBourdon
PriceFreeFree
Update frequencyEvery 13 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size2 MB37 MB
Age rating4+4+
DeveloperNissin Electro Co., Ltd.Santiago Sobrino Arias

In-app purchases

None

Piamate Plus

No in-app purchases

None

Bourdon

No in-app purchases

Questions

Is Piamate Plus free?
Piamate Plus is free to download, with no in-app purchases.
Is Bourdon free?
Bourdon is free to download, with no in-app purchases.
Do Piamate Plus or Bourdon have ads?
Neither Piamate Plus nor Bourdon shows ads.
Which is updated more often, Piamate Plus or Bourdon?
Piamate Plus ships an update every 13 months, and Bourdon every 2 months. Most recently, Piamate Plus was updated on November 6, 2026 and Bourdon on November 5, 2026.

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