SynthFree
Music & Audio Contains ads
High quality synthesis on Android phones
- Downloads
- 97+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Oct 17
- 2025 · v1.2.6
Screenshots
About SynthFree
1.Portable and compact to install on Android mobile phones
It is an app on an Android phone that does not require any additional hardware and is easy to carry with the phone.
2.Low hardware requirements for mobile phones
Mainstream Android phones from 2018 (7 years ago), such as Xiaomi 8, can run this app smoothly. Idle phones can immediately become synthesizers and perform feature upgrades.
3.Built in high-quality 128GM sound
Built in 128 standard GM tones, including piano, guitar, bass, harmonica, saxophone and other instrument tones. Supports up to 2048 polyphonic output, providing high-quality stereo audio output at 16bit/44.1kHz (some are 24bit/48kHz).
4.More than ten additional Chinese style timbres are provided
Additional selection offers dozens of Chinese style timbres, including guqin, guzheng, yangqin, pipa, sanxian, daruan, zhongruan, liuqin, erhu, gaohu, banhu, jinghu, horsehead fiddle, bandi, qudi, xindi, sheng, xiao, xun, suona, xiaosuona, hulusi, etc., full of Chinese style.
5.Support multiple parameter adjustment settings
It can adjust the sound quality parameters such as reverberation, harmony, and other effects. Among them, the reverberation has preset effect parameters such as caves, bathrooms, rooms, halls, churches, forests, canyons, underwater, hangars, theaters, tunnels, deserts, greenhouses, subway stations, ice rinks, space, bell towers, etc. The harmony has preset effect parameters such as children's voice, chorus, soft, classical, jazz, rock, electronic, ethnic, dreamy, combat, mystery, pastoral, and future technology. It is convenient to adjust the parameters for selecting timbre. Users can further define new reverberation and harmony presets, save their unique adjustment parameters, and easily activate them with one click.
6.Support importing SF2 sound files
Provide users with custom imported or searchable. sf2/sf3 sound files, allowing them to express their favorite sounds through the app and expand the app's sound capabilities.
7.Support the integration of USB-MIDI and Bluetooth instruments
Digital musical instruments (such as keyboards and blow pipes) can be connected to mobile phones through USB-MIDI ports. After selecting the connected instrument in the "Select USB Instrument" section of the APP, you can play the performance of the digital instrument through the designated channel tone on your phone. Due to the fact that mobile phones often only have one USB port at the bottom, USB can only connect to one digital musical instrument at a time.
If the instrument provides Bluetooth MIDI output, it can also be connected to a mobile phone. After selecting the connected instrument in the "Select Bluetooth Instrument" section of the APP, you can play the performance of the digital instrument through the designated channel tone on your phone. Bluetooth can simultaneously connect multiple digital musical instruments for ensemble performance. Ensemble requires higher hardware configuration for mobile phones, and it is recommended to install this app on newer phones.
8.Provide preview of timbre effects
The APP provides 5 classic music pieces, which can be selected through "Sound Preview Music" in "Sound Effects" ->"Other". On the "Channels" page, you can adjust the tone settings of each channel and preview the effect of that tone by playing a selected song.
9.Provide multiple channel tone presets
The APP has more than ten preset channel tone settings, including piano, organ, saxophone, guitar, bass, string, brass, woodwind, flute, Chinese plucked string, Chinese wind playing, percussion, chromatic percussion, and other ethnic instruments, making it easy for users to select the current channel tone settings. Users can also add their own presets, save their favorite sound effects separately, and activate them with one click.
It is an app on an Android phone that does not require any additional hardware and is easy to carry with the phone.
2.Low hardware requirements for mobile phones
Mainstream Android phones from 2018 (7 years ago), such as Xiaomi 8, can run this app smoothly. Idle phones can immediately become synthesizers and perform feature upgrades.
3.Built in high-quality 128GM sound
Built in 128 standard GM tones, including piano, guitar, bass, harmonica, saxophone and other instrument tones. Supports up to 2048 polyphonic output, providing high-quality stereo audio output at 16bit/44.1kHz (some are 24bit/48kHz).
4.More than ten additional Chinese style timbres are provided
Additional selection offers dozens of Chinese style timbres, including guqin, guzheng, yangqin, pipa, sanxian, daruan, zhongruan, liuqin, erhu, gaohu, banhu, jinghu, horsehead fiddle, bandi, qudi, xindi, sheng, xiao, xun, suona, xiaosuona, hulusi, etc., full of Chinese style.
5.Support multiple parameter adjustment settings
It can adjust the sound quality parameters such as reverberation, harmony, and other effects. Among them, the reverberation has preset effect parameters such as caves, bathrooms, rooms, halls, churches, forests, canyons, underwater, hangars, theaters, tunnels, deserts, greenhouses, subway stations, ice rinks, space, bell towers, etc. The harmony has preset effect parameters such as children's voice, chorus, soft, classical, jazz, rock, electronic, ethnic, dreamy, combat, mystery, pastoral, and future technology. It is convenient to adjust the parameters for selecting timbre. Users can further define new reverberation and harmony presets, save their unique adjustment parameters, and easily activate them with one click.
6.Support importing SF2 sound files
Provide users with custom imported or searchable. sf2/sf3 sound files, allowing them to express their favorite sounds through the app and expand the app's sound capabilities.
7.Support the integration of USB-MIDI and Bluetooth instruments
Digital musical instruments (such as keyboards and blow pipes) can be connected to mobile phones through USB-MIDI ports. After selecting the connected instrument in the "Select USB Instrument" section of the APP, you can play the performance of the digital instrument through the designated channel tone on your phone. Due to the fact that mobile phones often only have one USB port at the bottom, USB can only connect to one digital musical instrument at a time.
If the instrument provides Bluetooth MIDI output, it can also be connected to a mobile phone. After selecting the connected instrument in the "Select Bluetooth Instrument" section of the APP, you can play the performance of the digital instrument through the designated channel tone on your phone. Bluetooth can simultaneously connect multiple digital musical instruments for ensemble performance. Ensemble requires higher hardware configuration for mobile phones, and it is recommended to install this app on newer phones.
8.Provide preview of timbre effects
The APP provides 5 classic music pieces, which can be selected through "Sound Preview Music" in "Sound Effects" ->"Other". On the "Channels" page, you can adjust the tone settings of each channel and preview the effect of that tone by playing a selected song.
9.Provide multiple channel tone presets
The APP has more than ten preset channel tone settings, including piano, organ, saxophone, guitar, bass, string, brass, woodwind, flute, Chinese plucked string, Chinese wind playing, percussion, chromatic percussion, and other ethnic instruments, making it easy for users to select the current channel tone settings. Users can also add their own presets, save their favorite sound effects separately, and activate them with one click.
What’s new
Version 1.2.6 · Updated October 17, 2025
Supports 16KB memory page size
Alternatives to SynthFree
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| SynthFree | – | Free | 50+ | Oct 17, 2025 | |
| Drum Pad - Music & Beat Maker | 4.6 / 5 | Free | 1,000,000+ | Aug 25, 2026 | Compare |
| Trumpet Lessons - tonestro | 4.7 / 5 | Free | 100,000+ | Sep 22, 2026 | Compare |
| Learn Piano: Beginner Tutorial | 4.5 / 5 | Free | 1,000,000+ | Sep 11, 2026 | Compare |
| Ukulele Tuner | 4.8 / 5 | Free | 500,000+ | Mar 18, 2025 | Compare |
| Learn recorder: Flute Master | 3.3 / 5 | Free | 100,000+ | Oct 30, 2025 | Compare |
| JAMMATES | 3.6 / 5 | 15.99 USD | 1,000+ | Jul 22, 2026 | Compare |
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