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iStroboSoft

Peterson Tuners · Music · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide EST
$1.5K
Likely $512 to $4.6K
▲ 274.3% in 11 days
New ratings
Tracking
Daily counts start building from today
Rating
4.3 of 5
298 ratings in this store
Countries it ranks in
2
was 1 on Oct 15, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$18.4K
No Google Play version found
EST. LIFETIME DOWNLOADS
10.4K to 29.8K
Estimated from ratings count
WHERE IT EARNS · EST. / MONTH
  • Norway #92 Music$884 · 58%
  • New Zealand #82 Music$651 · 42%
HOW SURE ARE WE
Small app: combines its grossing ranks with ratings growth (2.2 new ratings a month on average since launch). Tested on 418 apps with verified revenue: typically off by about 2.6 times, so the range is wide. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
298
AVG RATING
4.28
PRICE
$9.99
AGE
17.6y
LAST UPDATE
1091d ago
VERSION
3.00
SIZE
5 MB
AGE RATING
4+

Last 29 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
12 / 29
COUNTRIES NOW
2 (was 0)
EST. REVENUE A MONTH, DAILY · APP STORE EST
Show daily values
Sep 24, 2026not in a grossing chart
Sep 25, 2026not in a grossing chart
Sep 26, 2026not in a grossing chart
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026$2.1K a month
Oct 11, 2026$3.8K a month
Oct 12, 2026$2.1K a month
Oct 13, 2026$11.2K a month
Oct 14, 2026$2.2K a month
Oct 15, 2026$3.5K a month
Oct 16, 2026$4.3K a month
Oct 17, 2026not in a grossing chart
Oct 18, 2026$3.2K a month
Oct 19, 2026$4.5K a month
Oct 20, 2026$27.8K a month
Oct 21, 2026$7.7K a month
Oct 22, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 24, 2026: not ranked. Now: #50 Music · GR.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
10 purchases listed
  • Guitar & Bass Sweeteners$5.99
  • Tuning Tools$9.99
  • Harmonic Tuning$19.99
  • Bluegrass Sweeteners$5.99
  • Extended Frequency Modes$4.99
  • Full Discounted Upgrade Pack$59.99
  • Steel Guitar Sweeteners$14.99
  • Orchestral Sweeteners$5.99
Top in-app purchases as listed on the App Store, in local prices.
REVIEW MOMENTUM
0.5 reviews / week
  • Trendfalling
  • Recent reviews average4.3 stars
  • Recent 1 and 2 star share15%
From the latest 494 written reviews, covering 6412 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases34 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
298 ratings
5★71%
4★10%
3★4%
2★3%
1★11%

What users want

From the latest 494 reviews on the United States App Store, Apr 2, 2009 to Jul 30, 2026: 15% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Worse after an update33%

24 of the 1 and 2 star reviews.

★★★★★ Apparently this app is not updated and smth went wrong as iOS updates were piling up over the years.
★★★★★ Hasn't been an update in two years.
★★★★★ Are you planning an update for the HD version?
Bugs, things not working30%

22 of the 1 and 2 star reviews.

★★★★★ Some of this could be user error but I didn't change any settings after downloading the app.
★★★★★ This has to be about the worst thing Peterson has designed- constantly flashes between notes when I'm trying to tune an acoustic guitar in a whisper quiet studio environment- i don't know how it can't distinguish…
★★★★★ App doesn't work well, especially compared to the competition.
Price and subscription25%

18 of the 1 and 2 star reviews.

★★★★★ On their company site they list all the compensated tunings without clear mention when comparing that with the software tuners they and several other features aren't included for the price as shown.
★★★★★ The initial purchase price unlocks a crippled version of the app, and it is $60 to get a discounted bundle of features.
★★★★★ But this product is expensive, hard to use, and deceptively advertises sweetened tunings.
Wrong or poor results19%

14 of the 1 and 2 star reviews.

★★★★★ I have a Peterson strobo clip tuner which I love to use, and I also like the sweetened tunings. However, this app can only use the microphone for its input. If you are using a guitar interface and amp sim for iPad or…
★★★★★ Very picky about input shank and often displays the wrong note.
★★★★★ Apparently this app is not updated and smth went wrong as iOS updates were piling up over the years.
Lost data, sync, backup8%

6 of the 1 and 2 star reviews.

★★★★★ I purchased this app and deleted it five minutes later.
★★★★★ Deleted and re-downloaded but still get no response.
★★★★★ 2 - no more input boost switch - very useful feature - gone or impossible to find.
No customer support8%

6 of the 1 and 2 star reviews.

★★★★★ It is consistent, simple and even worth the paid version to support the developer.
★★★★★ No response from the tuner.
★★★★★ Contact if you would like a screenshot.
Crashes and freezes3%

2 of the 1 and 2 star reviews.

★★★★★ It keeps freezing up on my iphone 13.
★★★★★ I don't know what happened this app, but it won't open for me and I just used it yesterday.
WHAT THEY ASK FOR
  • The only thing I wish they would add to the app is the ability to link my iPhone or iPad to my StroboPlus HDC with this app. 5★, Feb 21, 2026
  • Just wish it had auv3 support for other apps. 4★, Apr 19, 2025
  • I wish Apple made it easier to get a refund. 1★, Nov 12, 2024
  • if you didn't already need an iphone, this app alone would justify having an iphone for a musician. 5★, Jun 26, 2024
  • If you set intonation on your instruments yourself you absolutely need a strobe tuner, and this is a very elegant option because of the ability to use a tablet size screen. 5★, Mar 15, 2024
  • It also would be great if an updated dongle was offered—one that employed a Apple Lightning connector. 3★, Jun 18, 2023
  • Please bring this feature back!!! 4★, Feb 23, 2023
  • Peterson has a dongle for direct connection, but you need another adapter between that dongle's TRRS plug and either lightning or USB-C. 5★, Jun 3, 2022
WORDS THAT KEEP COMING UP IN BAD REVIEWS
waste of money4money back4sharp or flat3electric guitar3work with ios3i'm sure3please fix3iphone and ipad3sweetened tunings4
WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Accurate, great results33%

133 of the 4 and 5 star reviews.

★★★★★ Very sensitive and accurate.
★★★★★ It is incredibly accurate and I am able to pinpoint pitch more precisely with this than my Peterson StroboPlus HDC.
★★★★★ This is even more accurate and totally silent.
Worth the money10%

41 of the 4 and 5 star reviews.

★★★★★ This app does a lot and can be intimidating but the Sweetners are worth it and it takes time to understand it all.
★★★★★ Very precise tuner, works very well
★★★★★ Peterson strobe tuners are legendary and this app is worth every penny.
Easy to use10%

39 of the 4 and 5 star reviews.

★★★★★ Most other types of tuners filter out those jittery fluctuations, which seem to make tuning fast and easy, but actually give you a much less accurate assessment of what the string is doing.
★★★★★ It made it easy to have a power cable coming out of my phone and still have the display in portrait mode, offering the most visibility of the strobe.
★★★★★ I own a Peterson 250 model an after using this one I'm very impressed, very handy
Fast5%

21 of the 4 and 5 star reviews.

★★★★★ Most other types of tuners filter out those jittery fluctuations, which seem to make tuning fast and easy, but actually give you a much less accurate assessment of what the string is doing.
★★★★★ Wish I didn't have to force-quit after using, but it drains my iPhone 6S battery FAST if I don't.
★★★★★ Fast, accurate response, easy to read and interpret.
Looks great4%

16 of the 4 and 5 star reviews.

★★★★★ however, once you get it set up, with the sweetener you want to use, the actual tuning and tuning interface is amazing.
★★★★★ ***BEST RESULTS I RECOMMEND USING THIS WITH AN AUDIO INTERFACE FOR PLUGGING IN YOUR INSTRUMENT IF IT HAS A PICK UP.
★★★★★ Because I route my sound through an audio interface and AUM on the iPad, this app is always available and my go-to tuner.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States App Store.

★★★★★Jul 30, 2026
worth it

absolutely worth it

★★★★★Jun 1, 2026
Good as a phone app bad for my use cases

I purchased this app based off of good reviews here and on Reddit. From the day I purchased it I’ve been disappointed by the issues I’ve had. On my M4 IPad Pro it almost always displays the hz multiple octaves up (frequently double.) Also I cannot get my interface for my guitar to work with this app. It’s recording and sending input to the iPad but nothing is coming through to the app. I’m not sure if this is even meant to be supported but I resorted to trying it considering I could never get it to work normally. On my iPhone 15 Pro the app works almost seamlessly if I put my phone extremely close to the guitar. Any further away and it can’t hear it even on boost mode with the noise filter on. I tried turning them off and no input. It jumps octaves much less on the phone but it still does it frequently enough to be annoying. Some of this could be user error but I didn’t change any settings after downloading the app. In general the app works well enough and I’m sure the good reviews reflect good experiences. I just didn’t have a great experience myself.

★★★★★May 31, 2026
Almost perfect

I really wanna use this for work on my iPad mini and country but I will say after not using it for a few minutes it freezes up and I have to restart it. Can do that mid show.

★★★★★Feb 21, 2026
Peterson #1

Anyone that doesn’t have a Peterson Tuner needs to look in a mirror and ask themselves what they are doing with their lives. This app does a lot and can be intimidating but the Sweetners are worth it and it takes time to understand it all. If you have questions contact Petersons Customer Service they are always willing to help and is one of the reasons why they have been in business for over 70 years. The only thing I wish they would add to the app is the ability to link my iPhone or iPad to my StroboPlus HDC with this app. My laptop died and have no way of changing out the tunings I currently have loaded on it.

★★★★★Feb 17, 2026
The best tuner you will ever have.

Title says it all.

★★★★★Jan 26, 2026
No good for intonation

I bought this to set intonation on a guitar. And it’s not any good for that. It just keeps turning gray like it can’t hear anything. It also has a function that when you hit a target note , or get close, it grays out and stops. You can’t turn that off either. Soo annoying. Waste of money.

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Store screenshots

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App Store ads

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Growth research

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ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

display11tuning10note10strobe8strobe display8mode6tune5istrobosoft4accuracy4info strobosoft3strobosoft call3call 8am38am 5pm35pm cst3tuning application3software tuning310th cent3cent accuracy3note display3display allows3note octave3note tuned3noise filter3input boost3

What's new in 3.00

• Fixes auto-lock issues with iOS17. • Various bug fixes and improvements.

Released Mar 31, 2009. Current version shipped Oct 27, 2023.

Store description

Usage questions? ***Please contact us before posting an issue in the reviews.*** Peterson Support at info@strobosoft.com or call 708.388.3311 M-F 8am-5pm (CST) TRUSTED BY PROFESSIONALS FOR OVER 70 YEARS. ---iStroboSoft for iOS--- Peterson Strobe Tuners' popular StroboSoft tuning application for iPhone and iPad. iStroboSoft™ offers the unmatched accuracy of a mechanical strobe tuner for the highest degree of precision available in a software tuning application. Plug in and tune your electrics and acoustics quickly and easily with 1/10th cent accuracy. Peterson Tuners has offered tuning solutions for over 70 years and is the only company specializing in hardware and software tuning products for all levels of musicians. FEATURES: • Stand-by mode to reduce battery usage or freeze the display. • Guided Mode Tuning offers an alternate strobe display that slows the strobe bands one-by-one as you come closer to tune. • Speed control for strobe display; dampen the response for a longer note display. • 12 Temperaments with adjustable root control. • Display all sharps note display. • Assisted Low Note Detection (ALND) helps capture very low frequencies. • Mains hum filter option reduces the chances of the tuner latching on to 50 or 60Hz cycle hum when using a direct line-in connection or while using the app during device charging. • Smooth, real-time strobe display allows you to achieve an unmatched level of accuracy. • Note/Octave window displays the correct note and octave for the note being tuned. • Cents display allows you to see how far out of tune your note is in cent values. • Tune in auto or manual mode. • Toggle the display to show: cents, Hz, MIDI note value for the note being tuned. • Glowing flat/sharp indicators assist when tuning a note very far from the target position. • Noise filter: Use the noise filter when utilizing an external mic or clip-on tuning device to help reduce the effect of extraneous environmental noise during tuning. • Input boost: The input boost will raise all input frequencies by +24dB. • Calibration mode: iStroboSoft can be calibrated to an external source guaranteeing 1/10th cent accuracy. • Drop/Capo mode: iStroboSoft will auto-transpose notes up or down to one full octave. • Adjustable Concert A: Change the Concert A reference of the tuner to accommodate tuning to a fixed instrument, such as a piano, or tune instruments that do not utilize the typical Western A440 reference. • Full screen mode permits the strobe display to be maximized on screen to allow better viewing from a distance. • Change strobe display colors to accommodate different lighting environments or set a preferred user color for those with limited color palette recognition. Use the built-in mic on your device for tuning or connect directly via the headphone jack using an approved adaptor cable or interface. Devices without a headphone jack can connect a pickup or mic using the lightning-to-audio adaptor. Support via email at: info@strobosoft.com or call 708.388.3311 M-F 8am-5pm (CST)

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