12 vs Pro Guitar Tuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
12
This application provides a straightforward tool for tuning 12-string guitars to the standard eEaAdDgGBBEE tuning. It guides users by playing the correct notes for each string, allowing them to adjust their tuning pegs accordingly. The app also offers functionality for tuning standard 6-string guitars.
- 12-string guitar tuning
- Standard eEaAdDgGBBEE tuning
- Plays reference notes for each string
- Supports 6-string guitar tuning
- Easy-to-use interface
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Simple 12-string guitar tuner to tune up your 12-string guitar. This is for the standard eEaAdDgGBBEE 12 String Guitar tuning. Tuning your guitar can be a difficult task for you if you are just beginning guitar. The good news is, the more you do it, the easier it becomes. A nicely tuned guitar can make your music sound a lot better and help you greatly while you're are just getting the hang of finger placement for notes. A 12 string guitar is split up into 6 pairs of 2 strings. The thicker string of the pair is tuned to the same note and octave as a regular 6 string guitar. The thinner string, on the pair of strings 3-6, is tuned one octave higher than it's pair. On the first and second pairs, the notes are the same octave and each string in the pair should sound exactly the same to it's other string in the pair. This is eEaAdDgGBBEE tuning. The lowercase letters means that it is one octave higher then it's counterpart. Touch the note for the string you want to tune and then turn the tuning pegs on your guitar and match it up with the note that is being played. Tip: Make several passes tuning each of the strings. For example you might have noticed that if you have tuned all the strings once, and then back to the first one you tuned, it might be off a little bit. This is because you are increasing or decreasing the tension on each of the strings as you tune it and the instrument's body might bend ever so slightly due to this difference in tension. This causes the other strings to slightly change in pitch. So make sure you keep on checking and tuning the strings until all are in tune, so make several passes. Also you can use this simple tuner for your standard 6-String Guitar, it is the same tuning, only the strings on the 6-String Guitar are EADGBBEE, which is right part of this 12-String Guitar Tuner. So use just right part of this tuner to tune up your 6-String Guitar. Any questions using the App? Write support@tuneinstrument.com and we we'll get back to you promptly. If you need to tune other music instruments simply have a look into our other applications: Violin Tuner Simple, Cello Tuner Simple, Banjo Tuner Simple, Mandolin Tuner Simple, Double Bass Tuner Simple, Viola Tuner Simple, Guitar Tuner Simple, Ukulele Tuner Simple, Bass Tuner Simple. Follow us on Twitter: @TuneInstrument Like us on Facebook: facebook.com/Tuneinstrument Follow us on Google+: Tuneinstrument Subscribe to YouTube channel: www.youtube.com/TuneInstrument Sign up for newsletter and or visit us: www.tuneinstrument.com
Pro Guitar Tuner
This app provides precise, real-time tuning for a wide variety of stringed instruments. It offers numerous custom tunings, an intuitive interface with visual feedback, and high-quality audio samples for ear training. Users can save favorite tunings for quick access.
- Real-time chromatic tuning
- Supports over 200 custom tunings
- Vast library of stringed instruments
- Intuitive interface with visual feedback
- High-quality instrument samples
- Save favorite tunings
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The guitar tuner app used by professional guitar makers, guitar repair shops and musicians around the world. The app listen and analyze the sound in real time from the built-in mic, headset, guitar clip on or from any other external microphone. It is so accurate that it will be your best friend for guitar intonation! Because Pro Guitar Tuner is chromatic you can tune most types of stringed instruments. High-quality samples of real instruments are also accessible (i.e. tune by ear if preferred!). A massive library of different tunings for guitar, bass, balalaika, violin, ukulele and more makes it easy to find more qualities and characteristics from your instrument. The interface: To make it more intuitive, we give you information about the current pitch in many different ways: *Cents for the current pitch *A red/green light indicating the closest pitch *A note wheel corresponding to the chromatic scale *A fretboard with the current tuning setting displayed Standard guitar is set as default but the guitar tuner can be used to tune many different instruments, such as: *Guitars - Standard, 4-string, 5-string, 7-string, 8-string , 9-string, 10-string, 11-string, 12-string, and 13-string guitar *Bass guitars - Standard, 5-string bass and 6-string bass *Ukuleles - std (Soprano), Pocket, Concert, Tenor, Baritone, Bass, and Contrabass *Banjo - 4-string, 5-string, 6-string *Mandolin family - Mandolin (Soprano), Piccolo, Mandola (alto), Octave Mandolin (tenor), Mandocello (Baritone), Mandobass, Irish Bouzouki, Cittern, and Greek Bouzouki *Violin family - Violin, Viola, Cello (violoncello), Double bass and 5-string Double bass *Balalaika family - Prima, Piccolo, Secunda, Alto, Tenor, Bass and Contrabass After you have selected an instrument you choose a specific tuning. The app provides you with over 200 custom tunings. The tuning options are divided into groups to make them easier to find. For guitar, the categories are: *General tunings *Raised tunings *Lowered tunings *Dropped tunings *Double dropped tunings *Major open tunings *Minor open tunings (cross-note) *Modal tunings *Miscellaneous tunings If you have certain tunings that you often use, you can save them as favorites. This gives you easy access to them under favorite tunings. In the app, you can choose to subscribe to Pro Guitar Tuner Premium. It´s a monthly subscription that gives you the following features: *No Ads *All Tunings *All Instruments *Extra Settings Privacy Policy: https://www.proguitar.com/about/policies/privacy Terms of Service: https://www.proguitar.com/about/policies/terms
Screenshots
Verdict
The clearest difference is price: Pro Guitar Tuner at Free against 12's $0.99. Pro Guitar Tuner also leads on rating (4.7 vs 3.5) and review sentiment (65% vs 27%). 12's advantage is in-app purchases (none vs 5) and ads (none vs shown). On 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
Pro Guitar Tuner is free to download; 12 costs $0.99 up front. Pro Guitar Tuner sells 5 in-app purchases, starting at $2.99 per month. 12 asks for nothing beyond the download.
Pro Guitar Tuner holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Pro Guitar Tuner has 10K ratings behind it against 44, so its average is the more settled of the two. Written reviews point the same way: 27% of 12's written reviews are positive against 65% of Pro Guitar Tuner's.
12 ships an update every 3 months, Pro Guitar Tuner monthly. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.
| Parameter | 12 | Pro Guitar Tuner |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.5 (44 ratings) | 4.7 (10K ratings) — better |
| Positive reviews | 27.1% of reviews | 64.9% of reviews — better |
| Number of ratings | 44 | 10K — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 5.1.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Nikitenko | Pro Guitar Sweden AB |
Customer experience
12
Pro Guitar Tuner
User reviews
12
From 44 App Store ratingsWhat we love
- 👍 Simple and easy to follow
- 👍 Quick and easy tuning
- 👍 User-friendly mode
- 👍 On target with tuning
- 👍 Great for 12-string guitars
Room to improve
- 🐛 Crushing constantly
- 🐛 Does not work on iPad Pro
- 🐛 Useless product
- 🐛 No microphone
- 🐛 Not a tuner, just plays tone
Pro Guitar Tuner
From 10K App Store ratingsWhat we love
- 🌟 Excellent tuning accuracy
- 👍 Easy to use and intuitive
- 🎨 Beautiful and clean design
- 🔍 Versatile with many tuning options
Room to improve
- 💰 Paid features behind paywall
- 🙄 Excessive ads in free version
- 🐛 Occasional bugs and glitches
- 🔇 Microphone issues on some devices
Bugs and requests
12
Reported bugs
10 issues- Crushing constantly
- Does not work on iPad Pro
- No microphone functionality
- App crashes on opening
- App quits when opened
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- Note getting stuck
- Update broke the app
- Loads picture then crashes
- No sound
- Top E string octave lower than it should be
Requested features
4 requests- Use the microphone for tuning
- Add visual confirmation (e.g., green indicator)
- Allow tuning down strings
- Change MHz up and down
Pro Guitar Tuner
Reported bugs
3 issues- App crashes when changing tuning modes
- Tuner not responding to some strings
- Microphone not working on certain devices
Requested features
4 requests- Custom tuning options
- Support for more instrument types
- Landscape mode support
- Ability to save tuning profiles
In-app purchases
12
No in-app purchases
Pro Guitar Tuner
- Pro Guitar Tuner Premium$2.991 Month
- Premium Membership$24.991 Month
- Pro Guitar Tuner Premium3 Days trial$24.991 Year
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- ProGuitar Academy7 Days trial$79.991 Year
- Premium Tuner$59.99









