Expressive text-to-speech and empathic voice agent APIs that let developers direct emotion, tone and pacing in generated speech.

Endel
Subscription sound app that generates adaptive soundscapes for focus, relaxation, sleep and movement from time, weather and heart rate.
What is Endel?
Endel is a wellness audio app that creates personalized sound in real time to help you focus, relax, sleep or stay active. Its patented technology generates soundscapes on your device and adjusts them to inputs such as time of day, weather, location, and heart rate when you wear an Apple Watch. Four main modes, Relax, Focus, Sleep and Activity, are joined by named soundscapes like Rainy Outside, Colored Noise and Study, plus collaborations with artists including James Blake and Grimes. Scenarios are timed sessions with a defined start, middle and end, covering uses such as a focus timer, wake up, baby sleep, tinnitus relief, ASMR and a binaural beats session for stereo headphones. An Autoplay feature picks a soundscape for your current state. Endel runs on iOS, Android, Apple Watch, Mac, Apple TV, Amazon Fire TV, Alexa and a web player. It is a paid subscription with no price amounts published, so check the app or payment page for the current cost.
Use cases
- Play focus sounds while working
- Fall asleep with a sleep soundscape
- Relax and reduce stress
- Set a timed focus session
- Mask tinnitus with gentle tones
- Soothe a baby to sleep
- Pair sleep sounds with Alexa routines
Who it's for
Why use Endel
- Sound responds to your day, so the same app can wake you up, help you concentrate and wind you down.
- One subscription covers phone, watch, desktop, TV and smart speakers, which keeps your routine consistent.
- The Apple Watch app works on its own, so you can leave your phone behind.
- Timed Scenarios give a defined session for tasks like deep work, chores or waking up.
- A peer-reviewed study is cited by the vendor as comparing Endel's sound with playlists and silence.
Endel features
- Soundscapes generated on the device in real time
- Inputs from time of day, weather, location and heart rate
- Relax, Focus, Sleep and Activity modes
- Timed Scenarios such as Focus Timer, Wake Up and Baby Sleep
- Autoplay that picks a soundscape for your current state
- Standalone Apple Watch app that works without the iPhone
- Alexa support with routines, timers and smart alarms
- Mac app and web player
- Artist collaborations including James Blake and Grimes
- Binaural Beats scenario for stereo headphones
Endel integrations
How to get started with Endel
- Install Endel on your phone, watch, computer or TV, or open the web player, and sign in.
- Start a subscription through the payment page or the app; you can cancel anytime.
- Pick Relax, Focus, Sleep or Activity, or turn on Autoplay to let the app choose.
- Endel generates the sound from time, weather, location and heart rate if available.
- Switch to a Scenario when you want a timed session such as a focus timer or wake up.
Endel limitations
- Full use requires a paid subscription
- Binaural Beats only works with stereo headphones
- The vendor notes sound perception is subjective and Endel may not work the same for everyone
- Streaming-platform releases are not personalized or adaptive
Endel pricing
Endel has no free plan.
Prices can change and may vary by country or exclude tax. Check the official pricing page.
Endel alternatives
The main Endel alternatives listed on Debuly are AI Voice Generator, Autograph, Klang, LANDR, Rev and Speechify. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| Endel | Paid | — | iOS, Android, Apple Watch, macOS |
| AI Voice Generator | Free | — | Web |
| Autograph | Pricing unknown | — | Web, Phone |
| Klang | Freemium | €17.5/mo | Web, Mobile app, API |
| LANDR | Paid | $8.25/mo | Web |
| Rev | Freemium | $25.49/mo | Web, Mobile app, API |
| Speechify | Freemium | $139/yr | iOS, Android, macOS, Windows |

AI Voice Generator
Free online text-to-speech generator that turns typed text into a natural-sounding AI voiceover for videos, narration and explainers.

Autograph
AI interviewer that records family stories over phone calls and organizes them into a private, shareable archive.

Klang
EU-hosted AI transcription and meeting notes with summaries, speaker separation, search and integrations.
FreemiumVisit Klang (official site)
LANDR
AI music mastering, distribution to 150+ streaming platforms, samples, plugins and collaboration in one subscription.

Rev
Transcription and investigative platform for legal and case work, with AI transcripts, multi-file analysis and human-verified services.
FreemiumVisit Rev (official site)
Speechify
Text-to-speech and voice AI app that reads PDFs, web pages and documents aloud, with dictation, AI summaries and AI podcasts.
FreemiumVisit Speechify (official site)
Endel FAQ
How much does Endel cost?
Endel is a paid subscription that you can cancel anytime. The vendor does not publish a price, so check the app or payment page for current rates.
Is there a free plan for Endel?
There is no permanent free plan. Endel does have a subscription-code page for a free promotional subscription, but that is not a standing free tier.
What devices does Endel work on?
Endel has apps for iOS, Android, Apple Watch, Mac, Apple TV and Amazon Fire TV, plus Alexa and a browser-based web player.
What is the difference between Soundscapes and Scenarios?
Soundscapes are generated endlessly on the device from your local inputs. Scenarios are timed sessions with predefined start, middle and end phases for a specific task or occasion.
Does Endel use binaural beats?
Only one Scenario does. The Binaural Beats Scenario works with stereo headphones, and the other sounds do not use the technique.
Is Endel scientifically proven?
The vendor says its sounds are based on neuroscience and circadian research and cites a peer-reviewed study comparing them with playlists and silence, while noting results vary by person.
What are alternatives to Endel?
Alternatives include Brain.fm, Calm, Headspace, Noisli and myNoise. On Debuly, compare AI Voice Generator, Autograph and Klang.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| endel.io/ | official | |
| payment.endel.io/ | official | |
| endel.io/soundscapes | official | |
| endel.io/scenarios | official | |
| code.endel.io/?code=14dayspromo | official |
Image credits
- Logo: from endel.io · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: none collected yet, so a generated tile is shown.
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