Comparison

Vagally Better vs SleepEngine

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Vagally Better

This app allows users to activate new tones and update firmware for their Vagal Toner device. For research editions, it offers Bluetooth connectivity to configure stimulation parameters and run scientific studies.

Highlights
  • Activate new tones
  • Update device firmware
  • Bluetooth connectivity
  • Configure stimulation parameters
  • Advanced features for studies
  • Sham mode for placebo control
Features
Read full description

If you have a standard edition Vagal Toner, you can use this app to activate new tones and update firmware. If you have a Vagus.com Research Edition tVNS stimulator, you can use this app to connect to it via Bluetooth, configure all stimulation parameters -- frequency, wave form, intensity -- and start/stop stimulation. The latest version improves connection and stability and offers better control of intensity during stimulation and a set of advanced features to support double-blind, placebo controlled scientific studies. Standard Edition Support - Choose from a range of pre-configured stimulation protocols - Update your device with ease - Add your own customised stimulation protocols (coming soon) Vagal Oh! - Everything from a Standard device - More control over settings Research Edition Support - Improved connection and stability - Better control over parameters and settings - Advanced features for double-blind studies. - True sham mode for better placebo control. This app is intended for users located in the United States. Availability and functionality may vary by region. Disclaimer for Non-Medical Vagus Nerve Stimulator Wellness Device Disclaimer This app is a companion application for a consumer wellness device that provides vagus nerve stimulation. This is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. This app and associated device are intended for general wellness purposes only, such as relaxation and stress management. They are not intended for use in the treatment of any medical condition, including but not limited to epilepsy, depression, or other conditions for which prescription vagus nerve stimulators may be indicated. Consult your physician before use if you have a pacemaker, implanted defibrillator, or other implanted electronic device, or if you have a heart condition, epilepsy, or are pregnant. Discontinue use if you experience any discomfort or adverse effects.

About

SleepEngine

This app uses scientifically developed sound technology to help improve sleep quality. It guides your brain through healthy sleep cycles, aiding in falling asleep faster, staying asleep longer, and waking up refreshed. Designed to retrain natural sleep patterns, it offers personalized sleep programs for a better night's rest.

Highlights
  • Scientific sound technology
  • Guides brain through sleep cycles
  • Helps fall asleep faster
  • Reduces waking times
  • Personalized sleep programs
  • Bluetooth connectivity to SmartPillow
Read full description

Scientific sound technology from Cambridge Sleep Sciences for all SleepEngine™ powered products. Welcome to SleepEngine™ – the App which manages all products using the unique, scientifically proven SleepEngine™ technology which helps you to improve your sleep for better health and wellbeing. GETTING THE BEST RESULTS SleepEngine™ works by retraining your brain's natural sleep patterns — so it gets better with consistent use. Most people feel a real difference after using it nightly for around two weeks. Stick with it; the science needs a little time to work. WHAT IS SLEEPENGINE™ TECHNOLOGY? A neuroscientific approach that creates sound waves matching those the adult brain produces during healthy sleep cycles. These Sleepsounds guide your brain through the correct sequence of sleep cycles, so you fall asleep faster, stay asleep longer, and improve the overall quality of your sleep. Whether you have insomnia, work shifts, wake often in the night, or simply want to sleep better - SleepEngine™ can help. HOW IT WORKS The SleepEngine™ App, once connected to your SleepEngine™ powered product, enables you to easily control your chosen Sleep Program, optional Soundscape and set your alarm, if required. When playing the Sleepsounds you'll hear low-frequency tones that guide you into sleep. Regular, repeated use helps retrain your brain to restore natural, healthy sleep patterns — all while you sleep. CHOICE OF SLEEP PROGRAMS & SOUND FEATURES Personalise your sleep experience using a selection of programs, accompanying sounds and sound controls. • Deep Sleep - a recommended 8-hour program with an 18-minute wake-up cycle and alarm • Easy Sleep - choose 2 to 8 hours when you don't have time for Deep Sleep • Fall Asleep - a 2-hour program that guides you into deep sleep • Power Nap - an energising 30, 45 or 60-minute nap Layer in calming Soundscapes - Ocean, Rain, Stream, Wind, Train, and White, Pink or Brown Noise - set your preferred alarm sound and adjust volume and balance for the optimal setup. PROVEN TECHNOLOGY In two independent trials of SleepEngine™ technology, 94% of users saw a positive improvement in their sleep - on average up to 2.5 hours more sleep per night and up to 1.5 fewer wakings. SleepEngine™ has earned strong reviews from media and customers around the world. SleepEngine™ is not a medical device and does not diagnose, treat, cure or prevent any medical condition.

Screenshots

Vagally Better4 screens
SleepEngine4 screens

Verdict

The call

The clearest difference is review sentiment: SleepEngine at 80% against Vagally Better's 0%. Vagally Better's advantage is update cadence (weekly vs every 6 weeks). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Vagally Better ships an update weekly, SleepEngine every 6 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
Vagally Better versus SleepEngine: the parameters behind the verdict, then further details
ParameterVagally BetterSleepEngine
PriceFreeFree
Rating1.5 (2 ratings) — better—
Positive reviews0.0% of reviews80.0% of reviews — better
Number of ratings2 — better—
Update frequencyWeekly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size34 MB78 MB
Age rating4+4+
DeveloperTranscranial LtdCambridge Sleep Sciences Ltd

Customer experience

Vagally Better

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

SleepEngine

Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

Vagally Better

No in-app purchases

None

SleepEngine

No in-app purchases

Questions

Is Vagally Better free?
Vagally Better is free to download, with no in-app purchases.
Is SleepEngine free?
SleepEngine is free to download, with no in-app purchases.
Do Vagally Better or SleepEngine have ads?
Neither Vagally Better nor SleepEngine shows ads.
Which is updated more often, Vagally Better or SleepEngine?
Vagally Better ships an update weekly, and SleepEngine every 6 weeks. Most recently, Vagally Better was updated on October 24, 2026 and SleepEngine on October 24, 2026.

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