Comparison

ptune vs Arch Carrier Instrument Lab

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

Head to head
About

ptune

This app offers a fast and accurate polyphonic tuner for guitarists, allowing you to tune all strings simultaneously with a single strum. It also includes a chromatic tuner, a built-in metronome, and custom tuning profiles for a comprehensive practice experience.

Highlights
  • Polyphonic tuning
  • Chromatic tuner
  • Built-in metronome
  • Custom tuning profiles
  • Offline functionality
  • Dark interface
Features
Read full description

pTune is a fast, accurate polyphonic tuner built for guitar players who want to spend less time tuning and more time playing. POLYPHONIC TUNING Strum all six strings at once. pTune detects every string simultaneously and shows you exactly which ones need adjusting — no more tuning string by string. CHROMATIC TUNER Need to tune any single note? The chromatic tuner detects any pitch with high precision and shows cents off perfect. BUILT-IN METRONOME A clean, precise metronome with adjustable tempo and time signature — perfect for practice sessions. KEY FEATURES • Polyphonic detection — tune all strings in a single strum • Chromatic mode for any instrument or alternate tunings • Adjustable reference pitch (A = 415–466 Hz) • Custom tuning profiles • Adjustable detection speed • Built-in metronome with haptic feedback • Clean, distraction-free dark interface • Works offline — no internet required • No ads, no tracking, no account required PRIVACY FIRST pTune processes audio entirely on your device. Nothing is recorded, stored, or sent anywhere. The microphone is used solely for real-time pitch detection. Designed for acoustic and electric guitarists, beginners and pros alike.

About

Arch Carrier Instrument Lab

Features
Read full description

Draw a shape. Tap it. Hear it ring. Arch Carrier turns drawn shapes into a playable physical modelling instrument. A ring, a plate and a tuning fork each have their own resonances. Change the outline, cut a hole or move your strike, and explore how the sound changes. PLAY AND SHAPE • Strike up to three resonant bodies by touch. • Add and subtract material without degrading untouched contours. • Watch sand trace nodal patterns, and tilt your device to move it. • Start from five seeds or save your own instruments. TUNE AND SEQUENCE • New shapes start at A3, 220 Hz. • Tune by frequency, semitone or octave, with note names and cents. • Audition a tuning or hear the natural model. • Place four mallets and set strength and modal focus for each step. • Choose seven mallet speeds, from 0.25× to 2×. • Record looping mallet motion, synchronized to each rhythm. MIDI PATHS • Add editable traces with independent MIDI note ranges and channels. • Each key selects a strike position; velocity sets its strength. • Play from a connected MIDI keyboard while Arch Carrier is in the foreground. • Show the paths when you need them, then hide the overlay while MIDI keeps playing. KEEP YOUR INSTRUMENT • Save shapes, tuning, rhythms, motion, tempo, damping, tone and MIDI mappings together. • Resume your last instrument without automatic playback. • Record stereo 24-bit WAV files and export them to Files or other apps. Free. No account, advertising or in-app purchases. Designed for iPhone and iPad.

Screenshots

ptune4 screens
Arch Carrier Instrument Lab4 screens

Verdict

The call

ptune and Arch Carrier Instrument Lab are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
ptune versus Arch Carrier Instrument Lab: the parameters behind the verdict, then further details
ParameterptuneArch Carrier Instrument Lab
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyDaily—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size2 MB4 MB
Age rating+44+
DeveloperBE MUHENDISLIK TICARET LIMITED SIRKETIJeroen Rombouts

In-app purchases

None

ptune

No in-app purchases

None

Arch Carrier Instrument Lab

No in-app purchases

Questions

Is ptune free?
ptune is free to download, with no in-app purchases.
Is Arch Carrier Instrument Lab free?
Arch Carrier Instrument Lab is free to download, with no in-app purchases.
Do ptune or Arch Carrier Instrument Lab have ads?
Neither ptune nor Arch Carrier Instrument Lab shows ads.

Other comparisons