Comparison

PolyTune vs Ampero Control

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

Head to head
About

PolyTune

This application provides a powerful and accurate tuning tool for musicians. It allows for simultaneous tuning of all strings, supports various guitar and bass modes, and offers drop tunings. Its technology is based on a highly-regarded pedal tuner used by professionals.

Highlights
  • Tune all strings at once
  • Guitar/bass mode
  • Drop tunings support
  • Award-winning pedal technology
  • Chromatic tuning modes
  • High accuracy
Features
Read full description

It's the most powerful tool you've ever had in your pants! You know ... for tuning. That said, this is one of those nuggets on the App store you cannot afford to miss if you value being in tune and you take your smartphone with you when you go places. Yes to both? Then it's a no-brainer! - Tune all strings at once! Just strum your guitar, and see the pitch of all strings instantly. - Guitar/bass mode - Drop-tunings - 1:1 port of the award-winning PolyTune pedal (Guitar Player, Guitar World, Premier Guitar, MIPA, NAMM Best in Show 2010, etc.) - Based one the world’s best selling pedal tuner used by countless pros such as Steve Vai, John Petrucci, Steve Morse, Orianthi and many more! PolyTune is the world's first polyphonic tuner that will have future guitarists wondering how we ever got by without it. The magic lies in a never before seen approach to tuning aimed at speed, accuracy and ease of use, which allows you to get in tune fast, and back to doing what you love: playing. The PolyTune iPhone app is a 1:1 port of the award-winning PolyTune pedal tuner, and PolyTune for iPhone delivers exactly the same features and tuning technology as the pedal version. The pedal version is the fastest way to tune on-stage, whereas the iPhone app is the fastest and most convenient way to tune off-stage. Specifications: - Reference pitch from 435Hz to 445Hz - Drop tuning from E-flat to B - 0.5 cent accuracy - 2 chromatic tuning modes: Needle and Stream - MonoPoly recognizes whether one or several strings are played at once

About

Ampero Control

This app simplifies the setup and control of a Bluetooth MIDI controller. Easily manage presets, effects, and MIDI messages with a clean interface and pre-made or custom templates. Take full command of your musical gear without complex menus.

Highlights
  • Easy-to-use UI for MIDI controller setup
  • MIDI template management for presets and effects
  • Save and customize your own MIDI templates
  • Control MIDI messages via footswitches and expression pedals
  • On-the-fly controller adjustments
  • Supports standard, USB, and Bluetooth MIDI
Features
Read full description

● Easy-to-use UI We believe a lot of people have been suffering from setting up a MIDI controller. Now we offer you this smart app to setup your Ampero Control with a clean, straight forward user interface. With this, you can take fully control of your unit like a walk in the park. No complex menus and matrixes anymore! ● MIDI Template In the app we offer you several templates for you to achieve essential/advanced controlling of your musical gear: Select a footswitch, load a template and you’re ready to change presets, turn on/off effects, etc. You can also save your own templates and write notes on them. ●About Ampero Control Ampero Control is a compact, sturdy, fully programmable Bluetooth MIDI controller, that gives musicians flexible MIDI-based control via MIDI port, USB jack and Bluetooth. It features 4 footswitches, with each footswitch, you can send up to 16 different MIDI messages by different actions. You can also attach expression pedals or more footswitches to your Ampero Control depending on your needs. Furthermore, a dedicated smart mobile app lets you take control of every detail of your Ampero Control without any confusion. ● Features • Compact, smart 4-footswitch Bluetooth MIDI controller • Supports standard MIDI, USB MIDI and Bluetooth MIDI input/output/thru • Sending/transferring MIDI messages to separated/combined MIDI outputs • Send max. 16 MIDI messages by one footswitch (32 for A/B groups) • 100 banks (each bank includes 4 footswitches settings, 2 CTRL/EXP jack settings and more) • Different footswitch triggering actions for flexible switching and various uses • Dedicated mobile app lets you easily set your controller on the fly • 2 CTRL/EXP TRS jacks for adapting external footswitches/expression pedals • 3-digit LED for MIDI message info and Bluetooth connection status display • DC 9-18V or 5V USB bus power supply

Screenshots

PolyTune4 screens
Ampero Control4 screens

Verdict

The call

The clearest difference is review sentiment: PolyTune at 66% against Ampero Control's 13%. PolyTune also leads on rating (2.8 vs 1.8) and iOS requirement (9.0 vs 13.0). Ampero Control's advantage is price (Free vs $4.99) and update cadence (every 14 months vs every 40 months). On ratings volume, 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

Ampero Control is free to download; PolyTune costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PolyTune holds the better App Store score, 2.8 against 1.8. Both are backed by a comparable volume of ratings — 79 and 59 respectively. Written reviews point the same way: 66% of PolyTune's written reviews are positive against 13% of Ampero Control's.

UpkeepUpdate frequency

PolyTune ships an update every 40 months, Ampero Control every 14 months. The most recent releases landed on September 28, 2026 and July 27, 2026 respectively.

Scorecard6 real differences · 4 level
PolyTune versus Ampero Control: the parameters behind the verdict, then further details
ParameterPolyTuneAmpero Control
Price$4.99Free — better
Rating2.8 (79 ratings) — better1.8 (59 ratings)
Positive reviews65.7% of reviews — better13.0% of reviews
Number of ratings79 — better59
Update frequencyEvery 40 monthsEvery 14 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size45 MB38 MB
Age rating4+4+
DeveloperTC ElectronicHotone

Customer experience

PolyTune

All ratings79 ratings
Positive41.8%
Neutral6.3%
Negative51.9%
Written reviews513 reviews
Positive65.7%
Neutral9.6%
Negative24.8%

Ampero Control

All ratings17 ratings
Positive41.2%
Neutral17.6%
Negative41.2%
Written reviews69 reviews
Positive13.0%
Neutral13.0%
Negative73.9%

Bugs and requests

PolyTune

Reported bugs

3 issues
  • Crashes on launch
  • Unable to detect or tune certain strings
  • Inaccurate tuning readings

Requested features

4 requests
  • Add support for 432Hz tuning
  • Implement custom tuning options
  • Improve compatibility with external audio interfaces
  • Add a dedicated on/off switch

Ampero Control

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

PolyTune

No in-app purchases

None

Ampero Control

No in-app purchases

Questions

Is PolyTune free?
PolyTune costs $4.99, with no in-app purchases.
Is Ampero Control free?
Ampero Control is free to download, with no in-app purchases.
Which has better reviews, PolyTune or Ampero Control?
PolyTune is rated higher. PolyTune averages 2.8 out of 5 from 79 ratings, while Ampero Control averages 1.8 from 59 ratings.
Do PolyTune or Ampero Control have ads?
Neither PolyTune nor Ampero Control shows ads.
Which is updated more often, PolyTune or Ampero Control?
PolyTune ships an update every 40 months, and Ampero Control every 14 months. Most recently, PolyTune was updated on September 28, 2026 and Ampero Control on July 27, 2026.

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