DXi FM synthesizer vs Tera Synth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DXi FM synthesizer
Create unique sounds and music with this FM synthesizer app inspired by 80s hardware. Explore a variety of parameters to craft special tones and effects, and even record your creations. Includes a bonus 16-step loop sequencer for added musical exploration.
- 4 operator FM synthesis
- 8 algorithms
- Adjustable operator parameters
- Master LPF and Delay effects
- 16-step loop sequencer
- Audio recording and export
- MIDI keyboard support
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DXi is a FM synthesizer application inspired by 80's most popular FM synthesizer. You will enjoy creating sounds as well as playing music with this application. FM synthesizer is still popular among many people by its unique tone. We carefully selected parameters from original synthesizer so you will be enjoy editing tone with them easily. You need to know some technique to tweak the tone, but you will be able to get DXi's special tone and effects while having some fun! Creating sound effects is another idea to enjoy DXi. We loaded 16 step loop sequencer as a bonus feature! If you remember the days of FM synthesizers, try creating the tone you remember from them. If you have no experience with any FM synthesizer, we are sure you will be enjoying the unique tone world! * 4 operators FM synthesizer * Anti-ailiased oscillator * 8 algorithms * Envelope, frequency (Ratio or Fixed), waveform (12 types) can be set each operators. * Feedback control on operator number 4. * 2 master effects (LPF with Resonance and Delay) * Unison mode * Spectrum and oscilloscope view * Import/Export function to save the tone you created. (URL schema text string format) * Audio recording function. And you can transport recorded audio file, .wav, onto Mac/PC via iTunes file sharing. * Clipboard audio sharing support. You can export recorded waveform to other application via clipboard. It's compatible with Intua's clipboard. * Supports external MIDI keyboards via Core MIDI USB adapters. * Supports background audio and virtual MIDI input port. * Supports Audiobus.
Tera Synth
Create unique sounds beyond traditional synthesizers with a modular analog and digital synthesis workstation. Combine physical modeling, wireless patching, and built-in effects for a fat, individual sound. Features a programmable arpeggiator and live playing options.
- Modular analog and digital synthesis
- Physical modeling modules
- Wireless patching and modulation routing
- Built-in distortion, delay, chorus, phaser, and reverb effects
- Programmable arpeggiator
- Live playing with onscreen keyboard and MIDI support
- Audiobus and Inter-App-Audio integration
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Tera Synth - Modular Analog Synthesizer Explore new sound spaces with Tera Synth that go beyond the emulation of synthesizer legends. Use the power of analog and digital synthesis combined with new modules for physical modelling. Wireless patching of modules combined with an intelligible modulation routing simplifies the development of new synthesizer designs from scratch. Distortion effect, Delay/Chorus/Phaser and Reverb effects give your sounds the final polishing. Tera Synth gives your music an individual character with its unique fat sound. The well-designed algorithms and the economical modular structure provides you with a comparatively high voice yield. Precise timing with the unique built-in Arpeggiator let you feel the rhythm. Tera Synth supports Audiobus and Inter-App-Audio for integration with other Music Apps. Modular Analog Synthesis • Modular synthesizer with free connections between modules. • 25 Sound Modules • 4 Low frequency oscillators • 4 Standard ADSR Envelope generators. • 4 Multi Segment Envelopes with tempo sync. • 64 time/level segments per envelope • Monophonic or polyphonic with up to 32 voices. • More than 920 factory presets, unlimited user presets can be shared. FX • Chorus with four delay lines. • 8 pole Analog Phaser. • Distortion effect with Tube/Tape emulation • Stereo Echo/Delay effect. • Hi end reverberation unit. Live • Play melodies live with the onscreen keyboard. Drag fingers for slides and vibrato. • Optionally use CoreMIDI* compatible hardware keyboard. • Dozens of scales selectable • Variable Keyboard layout for scale optimized playing Full featured programmable Arpeggiator • Uses programmable sequences with up to 32 steps. • Can trigger single notes and chords. • Unique randomizer generates Arpeggios with 100% usability. • 32 Arpeggios included, unlimited useer arpeggios possible. • For each step you can program tie, accent, transposition and note order Global • Audiobus 3 compatible (Input slot) with Preset saving. • Inter App Audio • AudioUnit AUv3 with parameter automation • Ableton Link compatible • Audio pasteboard. Copy audio recordings to Clipboard for use with other Apps • Exchange user presets with File Sharing in iTunes. • Support for MIDI input/output connections. • MIDI learn functionality.
Screenshots
Verdict
The clearest difference is rating: Tera Synth at 4.8 against DXi FM synthesizer's 4.3. DXi FM synthesizer's advantage is update cadence (every 2 months vs every 4 months) and device support (3 vs 1). On price, review sentiment, ratings volume and 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
DXi FM synthesizer costs $1.99 and Tera Synth $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Tera Synth holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 19 and 28 respectively. Written reviews complicate that: 88% of DXi FM synthesizer's written reviews are positive against 86% of Tera Synth's, so the app with the better star average is not the one people write more warmly about.
DXi FM synthesizer ships an update every 2 months, Tera Synth every 4 months. Both last shipped on October 22, 2026.
| Parameter | DXi FM synthesizer | Tera Synth |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 4.3 (19 ratings) | 4.8 (28 ratings) — better |
| Positive reviews | 87.6% of reviews — better | 86.4% of reviews |
| Number of ratings | 19 | 28 — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 8.4 — better | 12.0 |
| Further details — not scored | ||
| Size | 5 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Takashi Mizuhiki | Harry Gohs |
Customer experience
DXi FM synthesizer
Tera Synth
In-app purchases
DXi FM synthesizer
No in-app purchases
Tera Synth
No in-app purchases
Questions
Is DXi FM synthesizer free?
Is Tera Synth free?
Which has better reviews, DXi FM synthesizer or Tera Synth?
Do DXi FM synthesizer or Tera Synth have ads?
Which is updated more often, DXi FM synthesizer or Tera Synth?
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