Comparison

GOV.UK One Login vs Hello Klean

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

Head to head
About

GOV.UK One Login

Securely prove your identity for government services by matching your face to your photo ID. This app also allows you to store a digital version of your HM Armed Forces Veteran Card on your phone.

Highlights
  • Digital identity verification
  • Face-to-face ID matching
  • Store digital Veteran Card
  • Secure data handling
  • Future digital document storage
Read full description

You can use the GOV.UK One Login app to prove your identity to access some government services. It works by matching your face to your photo ID. You can also use this app to save a digital version of your HM Armed Forces Veteran Card to your phone. In future you'll be able to save other digital documents, such as your driving licence. This is not available yet. Before you start You need to get this app if you’re: • using a service on the GOV.UK website that asks you to prove your identity with GOV.UK One Login • saving your digital Veteran Card to your phone You’ll be guided to this app when it is time to use it. What you need You can use any of the following types of photo ID to prove your identity: • UK passport • non-UK passport with a biometric chip • UK photocard driving licence • UK biometric residence permit (BRP) • UK biometric residence card (BRC) • UK Frontier Worker permit (FWP) You can use an expired driving licence if it expired in the last 90 days and it was issued by DVLA. You can use an expired BRP, BRC or FWP up to 24 months after its expiry date. You need to have your original photo ID with you. You cannot use a photocopy or digital copy. You will also need: • a well-lit area where you can take a good quality photograph • an iPhone 8 or newer • iOS 16.7 or higher How it works You'll need to sign in to the app with your GOV.UK One Login details. This links the app to the GOV.UK website so you can continue proving your identity. If your photo ID is a passport, BRP, BRC or FWP you will: • take a photo of your photo ID • scan the biometric chip in your photo ID using your phone • scan your face using your phone If your photo ID is a driving licence you will: • take a photo of your driving licence • scan your face using your phone What happens next Once your information has been submitted in the app, you'll need to go back to the GOV.UK website, so you can finish proving your identity and access the service you were trying to use.   Privacy and security The personal information you provide to prove your identity will not be saved either on the app or on your phone. We collect your data securely and delete it when it is no longer needed. Digital documents you add to the app will be saved on your phone so you can access them whenever you need.

About

Hello Klean

This app works with a special shower head to monitor filter life, water temperature, and your showering habits. It provides insights into how your routine impacts your hair and skin, offering guidance for healthier results.

Highlights
  • Filter life tracking
  • Heat alerts
  • Manage refills
  • Shower insights
  • Hair and skin insights
  • NFC connectivity
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The Hello Klean app works with Shower Head+ and Skin Filter to track filter life and water consumption – with Shower Head+ also tracking temperature – for healthier hair and skin. Shower Head+ and Skin Filter use hydropowered technology to measure real water usage and give accurate refill alerts, so filtration stays consistent. The app turns water data into simple insights to help you understand how your shower and cleansing routine affect your hair and skin. Features Filter life tracking See how much water flows through your shower or tap and know when your filter needs replacing to keep filtration working at full performance. Heat alerts (Shower Head+ only) Monitor hot water exposure and see how high temperatures may affect your skin barrier and hair health. Manage refills Connect your Hello Klean account to see your next delivery date or set up a Smart Refill Plan. Shower insights View average shower or rinsing length and water usage, as well as hot water time and cold exposure for Shower Head+, to understand your routine and build better habits. Hair and skin insights Get simple guidance based on your data to help reduce dryness, irritation, and hair stress caused by harsh water. Hydropowered technology Shower Head+ and Skin Filter generate their own energy from water flow. No batteries. No charging. They connect to the app via NFC. Built for better water Hello Klean creates science-backed solutions for the water your shower in and cleanse with, helping reduce chlorine, metals, and scale that can affect skin, hair, and scalp health. The app helps keep filtration consistent, your routine balance, and your water working the way it should. Requires Hello Klean Shower Head+ or Skin Filter.

Screenshots

GOV.UK One Login4 screens
Hello Klean4 screens

Verdict

The call

The clearest difference is rating: GOV.UK One Login at 4.5 against Hello Klean's 3.0. GOV.UK One Login also leads on ratings volume (3.5K vs 1) and review sentiment (20% vs 0%). 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.

ReceptionRating · Positive reviews · Number of ratings

GOV.UK One Login holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: GOV.UK One Login has 3.5K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 20% of GOV.UK One Login's written reviews are positive against 0% of Hello Klean's.

UpkeepUpdate frequency

GOV.UK One Login ships an update fortnightly, Hello Klean every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
GOV.UK One Login versus Hello Klean: the parameters behind the verdict, then further details
ParameterGOV.UK One LoginHello Klean
PriceFreeFree
Rating4.5 (3.5K ratings) — better3.0 (1 ratings)
Positive reviews19.6% of reviews — better0.0% of reviews
Number of ratings3.5K — better1
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS16.7 — better18.5
Further details — not scored
Size46 MB14 MB
Age rating4+4+
DeveloperGovernment Digital ServiceHelloklean Ltd.

Customer experience

GOV.UK One Login

All ratings3,289 ratings
Positive85.8%
Neutral3.0%
Negative11.2%
Written reviews2,550 reviews
Positive19.6%
Neutral4.5%
Negative75.8%

Hello Klean

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

GOV.UK One Login

Reported bugs

3 issues
  • App freezing or crashing
  • Inability to scan documents
  • Login issues and web browser redirects

Requested features

3 requests
  • Clearer instructions and guidance
  • Simplified verification process
  • Compatibility with older devices

Hello Klean

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

GOV.UK One Login

No in-app purchases

None

Hello Klean

No in-app purchases

Questions

Is GOV.UK One Login free?
GOV.UK One Login is free to download, with no in-app purchases.
Is Hello Klean free?
Hello Klean is free to download, with no in-app purchases.
Which has better reviews, GOV.UK One Login or Hello Klean?
GOV.UK One Login is rated higher. GOV.UK One Login averages 4.5 out of 5 from 3.5K ratings, while Hello Klean averages 3.0 from 1 ratings.
Do GOV.UK One Login or Hello Klean have ads?
Neither GOV.UK One Login nor Hello Klean shows ads.
Which is updated more often, GOV.UK One Login or Hello Klean?
GOV.UK One Login ships an update fortnightly, and Hello Klean every 6 weeks. Most recently, GOV.UK One Login was updated on November 3, 2026 and Hello Klean on October 30, 2026.

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