Comparison

EwiFinger vs RX

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

Head to head
About

EwiFinger

This app simulates the fingering of an electronic wind instrument (EWI). It allows users to see the correct key combinations for different notes. Ideal for learning and practicing EWI fingerings.

Highlights
  • EWI fingering simulation
  • Note display from key combinations
  • AKAI EWI reproduction
  • Practice tool for wind instrument players
Features
Read full description

It is a simple fingering simulator that reproduces the wind instrument EWI of AKAI Professional. You can check the notes from the key switch combination.

About

RX

Features
Read full description

Play the wind synth you know with a whole new set of sounds. Warm woodwind tones for a soft ballad, bright synth leads for a bold solo. RX-79 is a breath synthesizer that turns your wind controller and iPhone or iPad into a full sound module. Saxophonist SJsax shaped every sound and every response by actually playing it. [Find the right sound for every song] 41 built-in sounds. 14 acoustic sounds including soprano, alto and baritone sax, clarinet, oboe, flute, trumpet, euphonium and harmonica, and 27 electric sounds including brass, leads and basses. Play the same melody in many different moods. Tap the preview button in the sound list to hear a sound even without a controller. [Fit it to your breath] Adjust breath sensitivity, response curve, attack and decay, and set breath noise, tonguing and note-to-note connection to match your playing style. [Make it your own] Shape each sound with brightness, resonance, drive, vibrato, delay and reverb. Save the settings you like to the USER list and give them names. Saved sounds stay on this device. [SJ PACK: 10 signature sounds, sold separately] Extra sounds that carry SJsax's playing feel. Before buying, you can play each sound yourself for 30 seconds. Note: SJ PACK is an in-app purchase sold separately from the app (one-time purchase). [Connection] Connect a USB MIDI wind controller. RX-79 responds to breath (CC2, CC11, aftertouch), pitch bend and vibrato (CC1). Depending on the ports and power needs of your controller and iPhone or iPad, you may need a separate cable or adapter, such as a USB camera adapter. Sound plays even with the silent switch on, and you can play along with backing tracks from other apps. No internet connection required. No personal data is collected. Connection and support https://sjsax.com/rx79/

Screenshots

RX4 screens

Verdict

The call

The clearest difference is price: EwiFinger at Free against RX's $9.99. EwiFinger also leads on in-app purchases (none vs 1). RX's advantage is ads (none vs shown) and update cadence (weekly vs monthly). 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

CostPrice · In-app purchases · Ads · Monetization

EwiFinger is free to download; RX costs $9.99 up front. RX sells 1 one-off in-app purchase. EwiFinger asks for nothing beyond the download.

UpkeepUpdate frequency

EwiFinger ships an update monthly, RX weekly. The most recent releases landed on October 6, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
EwiFinger versus RX: the parameters behind the verdict, then further details
ParameterEwiFingerRX
PriceFree — better$9.99
Rating5.0 (5 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings5 — better—
Update frequencyMonthlyWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size2 MB25 MB
Age rating4+4+
Developerkazunori hirokawasung ju KIM

In-app purchases

None

EwiFinger

No in-app purchases

1 purchases

RX

One-time1
  • SJ PACK$5.99

Questions

Is EwiFinger free?
EwiFinger is free to download, with no in-app purchases.
Is RX free?
RX costs $9.99, and also offers in-app purchases.
Do EwiFinger or RX have ads?
EwiFinger shows ads; RX does not.
Which is updated more often, EwiFinger or RX?
EwiFinger ships an update monthly, and RX weekly. Most recently, EwiFinger was updated on October 6, 2026 and RX on October 29, 2026.

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