Dedupe, Fuzzy Match and Clean Data on Windows

Profile, clean, fuzzy match, dedupe and verify thousands of rows in seconds on your own Windows machine. Sensitive files never leave your computer and the app opens with a demo dataset already loaded.

Which Flookup Version Fits Your Work

The add-on cleans inside Google Sheets and the desktop app cleans local files. The cleaning modules match and each licence is separate.

Flookup ships in two shapes and each licence is separate, so it helps to start from where the data lives. If the data already lives in Google Sheets, the add-on cleans it where it sits. If files cannot leave the machine, or they live in CSV files and Excel workbooks, the desktop app cleans them locally. The cleaning modules match across both versions.

New to Flookup cleaning? Start with the add-on guide, then move to the desktop app when files outgrow the sheet.

Built for Large Files

Dedupe jobs over thousands of rows complete in seconds on an ordinary Windows machine, with the grid live throughout.

Dedupe jobs over thousands of rows complete in seconds on an ordinary Windows machine, and everything happens on that machine. Similar records are gathered into reviewable groups with a plain reason given for each match, and you choose the surviving golden record before anything changes. The grid stays live while a job runs, with a cancel control throughout, and completed work is recorded so nothing is ever silently altered.

What the Flookup Desktop App Does

Profile, clean, match and verify in one Windows app, against local files or a connected source.

Flookup Data Wrangler brings four outcomes into one Windows app. Work with local files or connect to an online source when you choose:

My Account shows licence status, device seats and remaining offline time. It is covered under licence and updates below.

Your Files Stay on Your Computer

Local files never leave the machine. Connected sources exchange only the records selected, directly with the provider.

Files you open from your computer are read, processed and saved there. Flookup does not receive a copy of those files or their contents. When you choose Google Sheets, Salesforce, Airtable or a database connection, the app communicates directly with that provider for the records you select. Changes are shown in a preview before you confirm a write-back.

The app has no sign-in account, analytics, telemetry or crash reporting. My Account is the local licence panel; it does not store your workbook or send it to Flookup. Your work is saved in a workbook in your Windows user profile.

Flookup receives licence requests and update checks, not your workbook. Activation sends your licence ID and purchase email, together with a one-way device fingerprint and app version. Routine licence checks use the licence ID, fingerprint and version. The fingerprint is derived from device and account details; those raw values are not sent.

Update checks request a signed release manifest from www.getflookup.com and do not include your licence ID, device fingerprint or file contents. Optional source connections go directly to the provider you selected, not through a Flookup data-processing service.

Network Requests

The app makes background requests for licence status and update information. When you use a connected source, it also contacts that provider to carry out the import or confirmed write-back you requested.

What Stays on Your Machine

A valid licence continues to work offline for up to seven days after its last successful check-in. The app tries again about once a day. If it cannot reach the licence service before that period ends, paid features pause until the next successful check; your workbook remains on your computer. My Account shows the remaining offline time.

The App Never Opens a Web Page Itself

Every other address in the app, including the buttons that open the pricing page and the licence page, is handed to your browser and does nothing itself. The app will not open a link to any host other than www.getflookup.com and www.paypal.com, and it does not use wildcards, so a subdomain we have not audited cannot open silently.

Desktop App Pricing Plans

Three one-time payments with nothing renewing and a lifetime of updates included.

The desktop app comes in three lifetime tiers, and every tier is a one-time payment with nothing renewing. Standard cleans local files on one computer. Pro adds the Google Sheets, Salesforce and Airtable connectors plus read only pulls from SQLite, PostgreSQL, MySQL, SQL Server and Oracle, with automation and priority support on one computer. Team covers five Pro seats with centralised seat management. Payment is handled by PayPal and your card details never reach Flookup. The licence reaches you by email within a minute. The free tier and 1-month or 1-year passes for the Google Sheets add-on cannot be bought here and are listed on the add-on pricing page.

A receipt and an invoice are sent for every payment, and the licence itself is a signed file on your machine, so there is no portal to visit and no payment method to keep current.

Licence and Updates

One seat on one computer, movable with Release device, working offline for up to seven days.

Your licence ID arrives by email. In the app, enter it with the email address used for purchase to activate the licence on that computer. My Account shows the licence status and available seats, and lets you release a computer when you need to move the licence. My Account does not take payments. The desktop licence is a one-time purchase and does not renew, so there is no subscription to cancel.

A desktop licence is bound to a device fingerprint derived from machine identifiers and the Windows account. A copied licence file alone is not enough to activate it on another computer. Release the old device before a planned replacement where possible. If anything looks wrong, contact us and we will put it right.

The app checks for a new release about once a day and shows an update notice in the top bar. It does not download or install updates without your action. When you choose to update, the app verifies the release manifest and installer hash before starting the installer. A valid licence keeps working offline for up to seven days after its last successful check.

A Digitally Signed Installer You Can Verify

The subject, thumbprint and validity dates are published below so the signature can be checked before installing.

The installer has an Authenticode signature. Windows can use it to check the publisher and detect changes made after signing.
You can inspect the certificate details below before installing. The installer is signed with this certificate:

Download the public certificate and inspect it in Windows Certificate Manager. Download the signing certificate.

The Windows Publisher Warning on First Run, Explained

Because this certificate is self-signed rather than issued by a commercial authority, Windows may show a publisher warning the first time. Check the signer and thumbprint before continuing. To clear the warning on your own machine, open the downloaded certificate, choose Install Certificate for Current User and run the installer again. The publisher then reads APELL Create rather than Unknown publisher.

How to Verify the Installer Signature Yourself

Right click the downloaded file, choose Properties and open the Digital Signatures tab. Confirm the signer subject is CN=Flookup Data Wrangler, O=APELL Create, C=GB and that the thumbprint matches the one above. You can also compare the file hash with the SHA-256 value in the release manifest.

Questions About the Desktop App

Does the desktop app send my data anywhere?

Flookup does not receive the files you open or their contents. Licence activation sends your licence ID and purchase email with a one-way device fingerprint and app version. Connected sources exchange only the records you select, directly with that provider.

Can you see the data I clean?

Flookup does not receive the files you process. Any write back is previewed and must be confirmed.

What makes the installer trustworthy?

The installer carries an Authenticode signature bound to its bytes, and the certificate subject, thumbprint and validity dates are published above so you can check them before installing.

How many computers can one licence cover?

One seat on one computer. Use Release device in My Account to move it to a new machine.

Can I remove duplicates from a CSV file without uploading it?

Yes. Open the file in the desktop app and run Match and Dedupe. The file never leaves your machine.

Can I dedupe Salesforce leads without writing code?

Yes. Connect Salesforce with the Pro tier, pull records with a SELECT query and merge duplicates in the grid, with previewed write back and undo.

How does the desktop app differ from the Sheets add-on?

The add-on cleans data inside Google Sheets with a free tier plus US$2 1-month or US$12 1-year passes. The desktop app cleans local files and connected sources on Windows under a one time payment. See which Flookup fits.

Does the app work without an internet connection?

Yes, for up to seven days after the last successful licence check. My Account shows the remaining offline time.

How to Report a Problem with the Desktop App

If a signature check fails, a hash does not match or the app behaves unexpectedly, contact us. Include the version shown in My Account and, if possible, the integrity-check output from that panel.