Comparison

Digital Identity Authenticator vs MDU

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

Head to head
About

Digital Identity Authenticator

This app provides secure and convenient access to NHS clinical systems using a cloud-based virtual smartcard. It offers faster authentication, simplified logins, and two-factor security for e-prescribing and other critical healthcare applications.

Highlights
  • NHS Spine and Windows AD authentication
  • Faster, simpler, and safer access
  • Two-factor authentication via QR code or push
  • Digital signature for e-prescribing
  • Cloud-based and device-agnostic
  • Easy self-service portal
Features
Read full description

Digital Identity Authentcator works with Isosec Virtual Smartcard which provides safer and easier access to your NHS clinical systems and workspace. Isosec’s Virtual Smartcard is the only cloud-based service available to the NHS that virtualises smartcards. WHAT IS A VIRTUAL SMARTCARD? FASTER PROCESS - Saves significant time compared to physical smartcard use - no more lost cards, forgotten passwords or multiple credential delays. SIMPLER AUTHENTICATION - authenticates seamlessly into Windows Directory and NHS Spine authenticated apps, removing multiple logins and simplifying system access. SAFER ACCESS - get two factor authentication from within the app via QR code or push notification, making your Virtual Smartcard safer and easier to use. KEY FEATURES: NHS SPINE AND WINDOWS AD AUTHENTICATION - just like a physical card, Virtual Smartcard is completely transparent to Spine clinical apps EASY SELF SERVICE - the Virtual Smartcard Self Service portal gives you total control of your enrolment, device options and account settings, such as passwords and security recovery options. INTEGRATED AUTHENTICATION - Virtual Smartcard is cloud-based, and is device, systems and hardware agnostic, so you get the same integrated experience as a physical smartcard. DIGITAL SIGNATURE FOR E-PRESCRIBING - Digital Identity Authenticator supports issuing electronic prescriptions faster and simpler with biometric authorization directly on your mobile device.

About

MDU

Access expert medico-legal advice for medical professionals. Find guidance on patient confidentiality, prescribing, complaints, and more through articles, case studies, and quick guides. Tailor your feed and access membership details offline.

Highlights
  • Expert medico-legal advice
  • Quick guides and case studies
  • Searchable articles
  • Tailorable news feed
  • Offline reading
  • Membership card access
Features
Read full description

As a medical professional, you can access expert advice from the Medical Defence Union (MDU). Read the latest medico-legal advice on patient confidentiality, consent, prescribing, police investigations, inquests, how to respond to patient complaints, and much more. Search our extensive range of quick guides, case studies, frequently asked questions and articles from our popular MDU Journal. You can tailor your news feed to show topics you’re interested in, read offline, get help with your membership, view your membership card and get proof of membership. Download the MDU app now for top medico-legal advice wherever you go.

Screenshots

Digital Identity Authenticator4 screens
MDU4 screens

Verdict

The call

The clearest difference is review sentiment: Digital Identity Authenticator at 100% against MDU's 17%. MDU's advantage is iOS requirement (12.2 vs 17.0). On price, update cadence, ads and in-app purchases 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

Digital Identity Authenticator ships an update every 4 months, MDU every 3 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Digital Identity Authenticator versus MDU: the parameters behind the verdict, then further details
ParameterDigital Identity AuthenticatorMDU
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews100.0% of reviews — better16.7% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.2 — better
Further details — not scored
Size11 MB165 MB
Age rating17+4+
DeveloperOneAdvanced LimitedThe Medical Defence Union

Customer experience

Digital Identity Authenticator

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

MDU

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

In-app purchases

None

Digital Identity Authenticator

No in-app purchases

None

MDU

No in-app purchases

Questions

Is Digital Identity Authenticator free?
Digital Identity Authenticator is free to download, with no in-app purchases.
Is MDU free?
MDU is free to download, with no in-app purchases.
Do Digital Identity Authenticator or MDU have ads?
Neither Digital Identity Authenticator nor MDU shows ads.
Which is updated more often, Digital Identity Authenticator or MDU?
Digital Identity Authenticator ships an update every 4 months, and MDU every 3 months. Most recently, Digital Identity Authenticator was updated on October 13, 2026 and MDU on October 1, 2026.

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