Comparison

S vs RiffAlly Tuner

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

Head to head
About

S

This semi-modular synthesizer app for iPad offers a hands-on sound design experience with a single-screen interface for intuitive patching. It delivers a warm, vintage sound inspired by 1970s synthesizers, featuring dual oscillators, resonant filters, and multiple modulation sources.

Highlights
  • Single-screen interface
  • Fast, hands-on patching
  • Vintage 1970s synth sound
  • Dual oscillators
  • Resonant ladder filter
  • Multiple modulation sources
Features
Read full description

S-Modular is a semi-modular synthesiser for iPad, designed for fast, hands-on patching without clutter. Everything is presented on a single screen, making sound design immediate and intuitive. Simply drag from one jack to another to create connections. S-Modular delivers a distinctive vintage sound inspired by classic 1970s synthesis — warm, rich, and full of character. Features Dual oscillators 24 dB/oct ladder filter Resonant high-pass and low-pass filters Two LFOs Four-step CV sequencer Four-track mixer Audio and CV splitter Two AHR envelope generators Delay effect

About

RiffAlly Tuner

Features
Read full description

Tune by ear less. Trust what you see more. RiffAlly Tuner is a focused chromatic tuner for guitar, bass, and related string instruments. It begins listening when you open it, then presents the detected note, octave, frequency, cents deviation, and an unmistakable direction for correcting the pitch. LIVE TUNER • Starts listening automatically after microphone permission is granted • Read pitch on a pale LCD-style display inside a textured Smoked Oak pedal • Pause and resume the microphone with the pedal button • Shows the nearest chromatic note with signed cents deviation • Uses clear TUNE UP, IN TUNE, and TUNE DOWN states • Calms small pitch fluctuations while staying responsive to real adjustments • Filters low-confidence input from the dominant note display • Keeps a restrained recent-stability trace GUIDED STANDARD TUNING • Move through a six-string guitar from low E to high E • See the current target, completed strings, and remaining strings • Advance only after a stable, centered reading PRECISION AND REFERENCES • Inspect cents and frequency in a dedicated precision workspace • Calibrate reference A from 420 to 460 Hz in 0.5 Hz steps • Keep Standard, Drop D, D Standard, and Open G note references nearby PRIVATE BY DESIGN Microphone audio is analyzed live on your iPhone. It is not recorded, stored, transmitted, or collected. RiffAlly Tuner requires no account, contains no advertising, and keeps its core tuning functionality on device. PERSONALIZE YOUR PEDAL Choose from five pedal finishes and five display styles in Information & Support. Finish and display choices are independent and stay saved on your iPhone. An in-app guide explains every core experience. Information & Support puts optional support first, alongside rating, sharing, feedback, and companion music tools. Tips never unlock features; Apple handles every purchase. Minimal, calm, and made for musicians who want the instrument—not the tuner—to hold their attention.

Screenshots

S2 screens
RiffAlly Tuner3 screens

Verdict

The call

The clearest difference is price: RiffAlly Tuner at Free against S's $2.99. RiffAlly Tuner also leads on update cadence (every 2 days vs every 7 months). S's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On ads 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

RiffAlly Tuner is free to download; S costs $2.99 up front. RiffAlly Tuner sells 3 one-off in-app purchases. S asks for nothing beyond the download.

UpkeepUpdate frequency

S ships an update every 7 months, RiffAlly Tuner every 2 days. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
S versus RiffAlly Tuner: the parameters behind the verdict, then further details
ParameterSRiffAlly Tuner
Price$2.99Free — better
Rating2.6 (11 ratings) — better—
Positive reviews31.3% of reviews—
Number of ratings11 — better—
Update frequencyEvery 7 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size7 MB2 MB
Age rating4+4+
DeveloperPaul BetowskiFernando Lanner Cardoso

In-app purchases

None

S

No in-app purchases

3 purchases

RiffAlly Tuner

One-time3
  • Small Tip$1.99
  • Supporter Tip$4.99
  • Generous Tip$9.99

Questions

Is S free?
S costs $2.99, with no in-app purchases.
Is RiffAlly Tuner free?
RiffAlly Tuner is free to download, with in-app purchases available.
Do S or RiffAlly Tuner have ads?
Neither S nor RiffAlly Tuner shows ads.
Which is updated more often, S or RiffAlly Tuner?
S ships an update every 7 months, and RiffAlly Tuner every 2 days. Most recently, S was updated on October 24, 2026 and RiffAlly Tuner on October 24, 2026.

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