Endel vs NEDIO

Both products use AI-generated audio, in different ways. Endel says all its sounds are generated by its proprietary, patented AI engine, Endel Pacific, and that the soundscapes are endless. The sound is produced continuously and, per its site, responds to time of day, weather, heart rate, and location.

NEDIO’s audio is generated in advance with a third-party generative music tool, then assembled into continuous mixes. It is not recorded by performers or licensed from a music library, and it does not adapt to you. NEDIO makes no claim of modulation or entrainment. See our terms for how the audio is licensed to you.

So the real difference is not human versus AI. It is a live adaptive engine that Endel built, against a fixed stream that NEDIO selected and arranged.

What the evidence covers. Endel promotes a 2022 study in Frontiers in Computational Neuroscience (Haruvi et al.). In 62 adults over four one-hour sessions at home, wearing an EEG headband, personalized soundscapes increased focus above silence, while popular focus playlists did not significantly. For 18–36-year-olds, all audio tested beat silence. Endel’s marketing describes the result as “7× better”; the abstract does not give that figure. It is a study of Endel-like sound with brain-computer measurement, not of developers programming, and it measures focus states, not work output. Check the paper’s disclosures for funding. NEDIO has no comparable study.

NEDIO fits when the bottleneck is the work itself, not the sound. You write a goal and a done-when line, the timer and audio start together, and the close-out records whether the goal was reached and what to pick up next. Over time the history and weekly statistics show how your blocks went.

It does not read your code, verify that anything passed, or tell you whether the music helped. It records what you tell it. It is also narrower than Endel on purpose: no sleep, no relaxation, no adaptation, no watch or TV apps.

Endel. I liked how much texture the soundscapes have. The music is made well. Endel says its sound is generated by its own AI engine, which matches what I suspected. The product design is very good too: everything about the app is beautifully done. But for me it is mostly the music. The experience stays at the level of sound.

NEDIO’s audio. The music is not worse. It put me into the same focus state that Endel did, and at the same high quality. On sound alone I could not say one was clearly better.

What decided it. NEDIO is a focus workspace rather than an audio product. Working in blocks, managing sprints, and the analytics of those blocks fit much more strongly into how I actually work, and they support the rhythm of my work sessions. With Endel I got a good sound. With NEDIO I got a comparable sound plus a structure around each block.

One five-workday week per product, on the same kind of task (pull requests, or feature work), at roughly the same time of day. Change only the audio and timer layer. Log these every working day:

The sound-change line is there because adaptive audio is the main thing that sets Endel apart, and whether it helps or distracts is personal. Track it rather than assuming.

Limits to respect. The week you try second has an advantage or a disadvantage from familiarity, so swap the order with a colleague or add a third week with the first product. A new tool is more interesting than an old one for a few days. You know which product you are using, which colors your ratings. Workload differs between weeks. Self-rated focus is noisy. Two weeks tell you whether you can live with a product’s limits and whether the start routine changed. They do not show an effect on focus.

If the two weeks look the same, keep the cheaper or simpler setup and look upstream of audio: meetings, review latency, unclear tickets. For a longer log tied to audio type, see the two-week audio log.