Comparison

StringLab vs Xho Tuner

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

Head to head
About

StringLab

This app is a digital synthesizer that uses physical string modeling to recreate the sounds of various instruments, particularly plucked or hammered strings. It allows users to explore acoustic physics and create unique instrument textures through extensive parameter experimentation.

Highlights
  • Karplus-Strong physical modeling
  • Exciter Impact and Noise modes
  • Resonator objects with feedback
  • Frequency Dispersion support
  • External live input
  • Preset randomizer and manager
  • Drag & Drop preset export
Read full description

StringLab is a physical string modeling synthesizer based on Karplus-Strong theory. It is capable of reproducing the sounds of many different types of instruments, but is especially useful in the reproduction of hammered or plucked strings and other types of percussive instruments. It works by passing carefully crafted waveforms and short bursts of white noise through a series of tuned delay lines. The delay lines have an internal feedback loop with a series of filters to mimic the natural decay of harmonics found in a real instrument. StringLab allows you to discover the character of real-world accoustics, exploring the physics of how materials interact. Many new and original textures are born out of experimenting with the settings, so don't be afraid to experiment and create your own unique and dynamic instruments. Features •Karplus Strong based physical modeling. •Exciter Impact with multiple modes. •Exciter Noise with many envelope driven filters. •2 resonator objects with feedback. •8 bands per object with inversion. •4 Coupling modes. •Supports Frequency Dispersion. •Feedback low/high Damping. •Per object Body Filter. •Pitch Deformity. •External live input mode. •Preset randomiser. •Build it Preset Manager & Favourites. •Search Presets. •Drag & Drop preset export of presets. •Supports Color Sets.

About

Xho Tuner

Read full description

The easiest tuning app, no ads or distractions: chromatic, standard and alternative tunings, real-time pitch detection and note display. Easy-to-use interface with clear visual feedback. Supports light mode and dark mode. No ads, no personal data collected. TAP the circle in the center for settings!

Screenshots

StringLab4 screens
Xho Tuner4 screens

Verdict

The call

The clearest difference is price: Xho Tuner at Free against StringLab's $14.99. StringLab's advantage is iOS requirement (13.0 vs 16.6). On update cadence, 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

Xho Tuner is free to download; StringLab costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

StringLab ships an update every 10 days, Xho Tuner fortnightly. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
StringLab versus Xho Tuner: the parameters behind the verdict, then further details
ParameterStringLabXho Tuner
Price$14.99Free — better
Rating4.3 (14 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings14 — better—
Update frequencyEvery 10 days — betterFortnightly
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.6
Further details — not scored
Size45 MB4 MB
Age rating4+4+
Developer4Pockets.comAtlas srl (Rome)

In-app purchases

None

StringLab

No in-app purchases

None

Xho Tuner

No in-app purchases

Questions

Is StringLab free?
StringLab costs $14.99, with no in-app purchases.
Is Xho Tuner free?
Xho Tuner is free to download, with no in-app purchases.
Do StringLab or Xho Tuner have ads?
Neither StringLab nor Xho Tuner shows ads.
Which is updated more often, StringLab or Xho Tuner?
StringLab ships an update every 10 days, and Xho Tuner fortnightly. Most recently, StringLab was updated on October 3, 2026 and Xho Tuner on October 5, 2026.

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