Galaxkey vs QU4D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Galaxkey
Securely view and send encrypted documents and emails. This app decrypts and displays protected files, including standard document formats and emails, directly on your device. It ensures your data remains protected by not storing decrypted file information locally.
- View Galaxkey Secured Documents (.gxk)
- Send secured emails
- Decrypt and display file contents
- Open files in other applications
- View Galaxkey Secure Share (GSS) files
- Respond to secured emails
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Galaxkey is an application for viewing Galaxkey Secured Documents and sending secured emails. When someone sends you Galaxkey secured file with the extension .gxk or sends you a Galaxkey secured email, the Galaxkey app provides a simple file-handling tool to open the Galaxkey secured files. A user can open a .gxk file in the Galaxkey app from emails or any file storage on the mobile device. The app authenticates the user with the cloud service and then decrypts and displays the contents of the file. If the decrypted files are standard documents like Word, Excel or JPEG, it will display the file in the application itself, else it will provide the ability to open the file in other iOS applications which let you view the file. If the contents of the Galaxkey file are an email, then the Galaxkey App will display the email along with its attachments. The app does not store any information of the decrypted file on the device so your data is still secured. The app also lets the user respond to emails that are opened in the app. The mail is sent securely using the users email account. Users can also create and send new secured emails using their Galaxkey account. The app allows the users to view their Galaxkey Secure Share (GSS) files in the cloud. The user can download the files and view them. The user needs to be registered with Galaxkey to be able to open and view Galaxkey secured files.
QU4D
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QU4D, means "quad", indicating the 4 key areas of the accounting package: Invoicing, Expenses, Register and Tax, everything a childminder needs to successfully run the accounting side of their business with peace of mind from an established company. The QU4D system is a comprehensive accounting software package, designed and built solely for childminders in the UK, Sys IQ Ltd have over 12 years experience designing and building software packages for childcare settings across the world, the infrastructure that the QU4D system is built on has been used for over 12 years by thousands of childminders in the UK, assisting them to easily manage their accounts including invoices, expenses, registers and tax. With the soon to be released (april 2026) government initiative where all self employed persons earning over £30,000 must submit their tax returns digitally online, QU4D will make that process, quick, simple and efficient for all childminders in the UK.
Screenshots
Verdict
The clearest difference is update cadence: QU4D at every 3 weeks against Galaxkey's every 6 weeks. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Galaxkey ships an update every 6 weeks, QU4D every 3 weeks. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.
| Parameter | Galaxkey | QU4D |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.6 — better |
| Further details — not scored | ||
| Size | 33 MB | 59 MB |
| Age rating | 4+ | 12+ |
| Developer | Galaxkey | SysIQ |
In-app purchases
Galaxkey
No in-app purchases
QU4D
No in-app purchases









