Comparison

Koto Tuner vs Sanshin Tuner Basic

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

Head to head
About

Koto Tuner

Easily tune your 13-string koto with a simple interface and noise filtering. Visual indicators show pitch accuracy for each string, guiding you to precise tuning. Supports multiple tuning modes and adjustable A4 frequency.

Highlights
  • Noise filtering for accurate tuning
  • Visual pitch indicators
  • Calibrate piano sound
  • A4 frequency adjustment
  • 18 tuning modes
  • Precision tuning scale
Features
Read full description

[Koto Tuner] The simple user interface with noise filtering can help you tuning the 13 strings without any setting while activating the APP. When you pull the Koto string, the pitch will be shown on the panel for the individual string by indicating signal high or low. 
 [Function Description] ▪ Calibrate Piano Sound : Click on an open string then calibrate the sound with your Koto. ▪ A4 Frequency adjustment: choose 428~452 frequencies for A4 string. ▪ Total 18 kinds of tuning modes are available. ▪ The scale for precision tuning is 5 cents for every sub-bit. The blue line represents the open strings start from. The green arrow means pitch is accurate and it will turn white once the pitch difference exceeds more than a sub-bit. ▪ The complete function, will visually tell you the pitch is good or not by lighting green or white. Users can easily adjust the string by the lighting arrow shown on the scale. 
 We welcome you to feedback us for any questions, suggestions and comments regarding this APP.

About

Sanshin Tuner Basic

This application provides precise and instant tuning for the sanshin with multiple tuning options. It features visual and audible indicators, displays exact frequencies, and offers a tuning fork as an in-app purchase. Optimized for speed and responsiveness, it's designed for all universal devices.

Highlights
  • Multiple sanshin tunings
  • Instant loading and fast tuning
  • Displays exact sound frequency (Hz)
  • Visual and audible tuning indicators
  • Highly responsive interface
  • Universal app compatibility
Features
Read full description

Tune your sanshin with precision and ease, instantly! · 5 tunings for Sanshin. · Tuning fork! (In-app purchase) · Instant load and fastest tuning - the only tuner optimized for 64-bit · Displays the exact sound frequency value in Hz. · Visual and audible tuning indicators. · Highly responsive. · Universal app. --- Got ideas? Questions? Please send us your feedback through our site or to feedback@daikyoujulabs.com

Screenshots

Koto Tuner4 screens
Sanshin Tuner Basic4 screens

Verdict

The call

The clearest difference is price: Koto Tuner at Free against Sanshin Tuner Basic's $6.99. Koto Tuner also leads on ads (none vs shown) and review sentiment (20% vs 0%). On in-app purchases, monetization model 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

Koto Tuner is free to download; Sanshin Tuner Basic costs $6.99 up front. Koto Tuner sells 1 one-off in-app purchase and Sanshin Tuner Basic sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Koto Tuner ships an update every 5 weeks, Sanshin Tuner Basic every 4 months. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
Koto Tuner versus Sanshin Tuner Basic: the parameters behind the verdict, then further details
ParameterKoto TunerSanshin Tuner Basic
PriceFree — better$6.99
Rating3.0 (1 ratings) — better—
Positive reviews20.0% of reviews — better0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.6
Further details — not scored
Size49 MB15 MB
Age rating4+4+
DeveloperHsing-Fu HsuehPedro Daniel Macalupu Cumpen

Customer experience

Koto Tuner

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews5 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

Sanshin Tuner Basic

Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Koto Tuner

One-time1
  • All Function&No Ad$1.99
2 purchases

Sanshin Tuner Basic

One-time2
  • Remove adsFree
  • Tuning ForkFree

Questions

Is Koto Tuner free?
Koto Tuner is free to download, with in-app purchases available.
Is Sanshin Tuner Basic free?
Sanshin Tuner Basic costs $6.99, and also offers in-app purchases.
Do Koto Tuner or Sanshin Tuner Basic have ads?
Sanshin Tuner Basic shows ads; Koto Tuner does not.
Which is updated more often, Koto Tuner or Sanshin Tuner Basic?
Koto Tuner ships an update every 5 weeks, and Sanshin Tuner Basic every 4 months. Most recently, Koto Tuner was updated on September 30, 2026 and Sanshin Tuner Basic on October 9, 2026.

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