Medical technology
Digital Therapeutics: Software-Based Treatments
For most of medical history, treatments have meant tablets, injections or procedures. A newer category is changing that picture: digital therapeutics, sometimes called software as a treatment. These are apps or programmes designed and tested to treat, manage or prevent a medical condition, not just track it. Unlike a general wellness app, a genuine digital therapeutic is built on clinical evidence and, increasingly, assessed by regulators. In the UK they are being used for conditions from insomnia to anxiety and diabetes. This guide explains, in plain terms, what digital therapeutics are, how they can actually treat conditions, where they are already helping, and how they are checked for safety and effectiveness before being offered on the NHS.
Education and reference only. This article explains how treatments work in plain language — it contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician.
What a digital therapeutic really is
A digital therapeutic is software designed to deliver a proven treatment, tested in clinical studies much like a medicine. The key difference from an ordinary health app is evidence and intent: a step counter or symptom diary helps you monitor things, but a digital therapeutic aims to change the course of a condition. Many work by delivering established psychological or behavioural treatments in a structured, interactive way. For example, a programme might guide someone through the recognised steps of a talking therapy over several weeks. Because the active ingredient is a structured programme rather than a chemical, digital therapeutics can be delivered at scale, at any time, and tailored to the person using them.
How software can treat a condition
It can seem strange that software could treat illness, but for many conditions the effective treatment is a change in behaviour, thinking or habit, and that can be delivered digitally. A well-established example is insomnia. The most effective treatment is not a sleeping tablet but a talking therapy called cognitive behavioural therapy for insomnia, which retrains unhelpful thoughts and habits around sleep. Delivered as a structured app, this same therapy can reach far more people than limited numbers of therapists ever could. Similar approaches help anxiety, low mood and some long-term conditions, where guided programmes support people to manage symptoms, change habits, and stick to treatment. The software becomes the vehicle for a genuinely therapeutic intervention.
Where they are helping in the UK
Digital therapeutics are already part of NHS care in several areas. In mental health, guided digital programmes for anxiety and depression are offered through NHS talking therapy services, helping people access evidence-based support faster. For sleep, digital cognitive behavioural therapy for insomnia has been assessed and recommended as an option instead of sleeping tablets for many people. In diabetes and other long-term conditions, structured digital programmes support education, lifestyle change and self-management. These tools are generally used alongside, not instead of, clinicians, widening access to treatments that would otherwise face long waits. They are particularly valuable where the effective treatment is a structured programme that has traditionally been in short supply.
How they are checked in the UK
Because a digital therapeutic makes a medical claim, it cannot simply be released like any app. In the UK, software intended to treat or diagnose is regulated as a medical device by the MHRA, which oversees its safety. Beyond safety, bodies such as NICE assess whether a digital health technology actually works and offers value to the NHS, using evidence standards designed for digital tools. This matters because the app stores are full of health apps with no evidence behind them. When a digital therapeutic is recommended by NICE or offered through the NHS, it has been through this scrutiny. For the public, that is the key signal separating a tested treatment from an unproven product.
Benefits, limits and staying safe
The appeal of digital therapeutics is real: they can widen access, cut waiting times, be available day or night, and give people more control over their care. But they are not a cure-all. They suit some conditions far better than others, they rely on the user engaging with them, and they are not right for everyone or every situation, particularly in a crisis. Concerns about data privacy and digital exclusion also matter, since not everyone has the devices, skills or connection needed. The safest approach is to use digital therapeutics that are recommended by the NHS or NICE, ideally alongside your clinician, and to seek human help promptly if your condition worsens or an urgent problem arises.
In short
Key takeaways
- Digital therapeutics are software-based treatments, tested in clinical studies, designed to treat or manage a condition rather than just track it.
- Many work by delivering proven psychological or behavioural treatments, such as therapy for insomnia, in a structured interactive form.
- In the UK they are already used for anxiety, depression, insomnia and long-term conditions, usually alongside clinicians.
- Genuine digital therapeutics are regulated as medical devices by the MHRA and assessed for effectiveness by bodies such as NICE.
- They widen access and offer flexibility, but suit some conditions better than others and are not a substitute for urgent human help in a crisis.
Answers
Frequently asked questions
How is a digital therapeutic different from a health app?
The main differences are evidence and purpose. A typical health or wellness app helps you track things like steps or mood, but makes no tested medical claim. A digital therapeutic is designed to treat or manage a specific condition and has been tested in clinical studies to show it works, much like a medicine. In the UK it is also regulated as a medical device. If a tool is recommended by the NHS or NICE, that is a strong sign it is a genuine digital therapeutic.
Can an app really treat something like insomnia?
Yes, for many people. The most effective treatment for long-term insomnia is not a sleeping tablet but a structured talking therapy called cognitive behavioural therapy for insomnia. Delivered through a well-designed, tested app, this same therapy can be just as effective and reaches far more people than the limited number of therapists available. It works by changing unhelpful thoughts and habits around sleep. It has been assessed in the UK and recommended as an option for many people with insomnia.
Are digital therapeutics safe and private?
Tested ones offered through the NHS have been assessed for safety and are regulated as medical devices. As with any digital tool, data privacy is a fair concern, so it is worth using products recommended by the NHS or NICE, which must meet standards on data protection. They are not suitable for emergencies. If your condition worsens, you feel in crisis, or an urgent problem arises, contact a human, whether your GP, NHS 111, or 999 in an emergency, rather than relying on an app.
Go deeper
Related guides
Sources
Where this is drawn from
- NICE — Evidence Standards Framework for Digital Health Technologies.
- MHRA — Guidance on Medical Device Stand-alone Software Including Apps.
- NHS — NHS Talking Therapies and digitally enabled therapy.
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