Piano 2 ! vs TfxMod
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Piano 2 !
This app offers a fun and clear way to teach music to friends or children. Its unique features simplify learning songs and music theory with intuitive controls and on-screen guidance.
- Dual keyboards with piano sound
- Key-Marks and Keyboard-Sync for teaching
- Smart Glissando effect
- Independent volume control for each keyboard
- Easy range selection
- Adjustable keyboard size
- Pitch name labels with multiple conventions
Read full descriptionHide full description
Wanna teach your friends or kids to play songs? PIANO 2 will definately give you a lot of fun! With PIANO 2's innovative and unique features Key-Marks and Keyboard-Sync, teaching songs or music theory has never been so clear and easy to follow! Piano 2's user-friendly design lets you easily control keyboard rotation, keyboard size and range selection in one single interface. With its on-screen instructions, you can check out all features by just one tap. FEATURES: - Dual Keyboards: 2 full range keyboards with beautiful piano sound. - Key-Marks & Keyboard Sync: Innovative features for teaching tunes and music theory. - Smart Glissando: Starting a rolling on a black key plays only black keys. - Sub-Volume Control: Both keyboards have an independent sound volume control, a very helpful feature for teaching tunes. - Easy Range-Selection: A new design of user-friendly controls let you select keyboard range fast and easily. - Keyboard Size Control: You can adjust the keyboard size to fit your need. 3 different sizes are available. - Pitch Name Labels: White keys can be marked with their pitch names, 4 naming conventions provided.
TfxMod
This app provides a chorus and flanger audio effect plugin for mobile devices. It emulates the sound of vintage bucket brigade devices with adjustable parameters for delay, feedback, and modulation. It can be used with host applications to process audio input.
- Chorus and flanger effects
- BBD-inspired delay lines
- Adjustable delay time, feedback, and modulation
- Variable LFO rate and waveform
- Low-pass and high-pass filters
- Stereo width control
Read full descriptionHide full description
TfxMod is a chorus / flanger effect AudioUnit Extension plugin. It uses delay lines which are inspired by BBD (bucket brigade device). The delay line is identical to the delay line of the TfxEcho except its buffer length. The delay line uses fixed length buffer and an artificial clock to sample input signal in variable sampling rate. When the delay time is changed, the delay line can produce pitch change effect which is similar to the behavior of the BBD based chorus / flanger unit. Features AudioUnit Extension Chorus Effect - Delay Time: From 1 ms to 40 ms - Feedback: 0% - Modulation width: From 0 ms to +/- 1 ms Flanger Effect - Modulation Mode: mode1, mode2, and mode3 - Delay Time: From 1 ms to 20 ms (mode1&2), From 1 ms to 13 ms (mode3) - Feedback: From 0 % to 100 % - Modulation width: From 0 ms to 39 ms (mode1), From 0 ms to 19 ms (mode2), From 0 ms to 12 ms (mode3) Common - Adjustable lowpass filter and high-pass filter. - Modulation rate: From 0.01 Hz to 10 Hz - LFO Frequency can be synced to the tempo provided by the host application. - LFO Waveform: Continuously variable from sine wave to triangle wave. - Stereo Width: LFO Phase offset from 0 degree to 180 degree. Host Application - Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output.
Screenshots
Verdict
The clearest difference is price: Piano 2 ! at Free against TfxMod's $4.99. Piano 2 ! also leads on iOS requirement (8.0 vs 13.6). TfxMod's advantage is review sentiment (100% vs 75%) and ratings volume (6 vs 1). On rating, update cadence, ads and in-app purchases 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
Piano 2 ! is free to download; TfxMod costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Piano 2 ! holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: TfxMod has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 75% of Piano 2 !'s written reviews are positive against 100% of TfxMod's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Piano 2 ! | TfxMod |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 5.0 (1 ratings) — better | 4.8 (6 ratings) |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.6 |
| Further details — not scored | ||
| Size | 22 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Patrick Chan | Ryo Togawa |
Customer experience
Piano 2 !
TfxMod
In-app purchases
Piano 2 !
No in-app purchases
TfxMod
No in-app purchases
