Duplicate rows and odd numbers,
picked out of your spreadsheet in seconds

Find duplicate rows, spot odd numbers, reconcile two tables - offline, on your own PC.
Import csv or xlsx, export a clean Excel file. Your original file is never touched.

Download free trial Buy now

Try before you buy: 3 days / 10 runs free, every feature unlocked.

What it does

Not another Excel add-in. One small program you double-click.

Finds duplicate rows

The same customer ordered twice, the same record typed in twice, the same name three times in a list. Pick the file, click Start, and duplicates come back grouped - with how similar they actually are.

Flags odd records

A quantity of 99999, an extra zero on an amount, an impossible date. You do not have to teach it what "odd" means: it measures the normal range of your own data first, then judges against that.

No settings to guess

Most tools make you guess a threshold, and when you guess wrong they say "no duplicates found". FlySense measures the background similarity of your table, sets the threshold from your chosen strictness, and prints the numbers so you can see what it did.

Offline. Nothing uploaded.

Everything runs inside your own PC. Unplug the network cable and it still works. Customer lists, payroll and bank data never leave the machine - which matters if you handle other people's money.

Read-only, results to a new file

Your source file is opened read-only and never modified. Results are exported to a fresh Excel file you can send straight to your manager.

No installer, no service

Unzip and double-click. No installation, no registry changes, no background service. Easy to explain to your IT department.

Personal or Professional?

One program, two license keys. Start with Personal and upgrade later by paying only the difference.

FeaturePersonalProfessional
Single-file duplicate detectionYesYes
Single-file anomaly detectionYesYes
Export results to ExcelYesYes
Batch processing - a whole folder in one run—Yes
Include sub-folders—Yes
Summary report for the whole folder—Yes
Smart reconciliation of two tables—Yes
Silent command line (for scheduled jobs)—Yes
Price19 USD / PC, one-time199 USD / PC, one-time
Already bought Personal? You do not buy the software twice. Pay the difference (180 USD), send the same Machine ID, and we issue a Professional key. Same computer, same data, no reinstall.

Pricing

One-time payment. No subscription, no per-run fee, no data limit.

Personal

19 USD / PC
  • Single-file dedup and anomaly detection
  • Export results to Excel
  • Good for one person doing their own checks
  • One-time, one computer, lifetime
Buy Personal
For finance and operations

Professional

199 USD / PC
  • Everything in Personal
  • Batch processing of a whole folder, sub-folders included
  • Summary report for every file in the folder
  • Smart reconciliation: your system vs the bank statement
  • Silent command line for scheduled runs
Buy Professional

Download the trial

Run it on your own data first. 3 days / 10 runs, every feature unlocked including batch processing.

FlySense-International-1.0.0.zip

Unzip it and double-click FlySense.exe. No installation.
The first run opens an activation window: click Copy Machine ID and send it to us. We send your license key back, you paste it in once, and you are done.

Windows warning? If SmartScreen or your antivirus flags the file, unzip it to a folder first and run it from there (do not run it from inside the zip). This is normal for a small publisher without a paid code-signing certificate - it is not a virus. A SHA-256 fingerprint is included in the package so you can verify the file.

Frequently asked

Questions? Email 214871177@qq.com

Does it send my data anywhere?

No. It runs entirely on your computer. There is no server call, no telemetry and no account. You can unplug the network and it behaves exactly the same.

Which file formats?

csv and xlsx. Results are exported as a new Excel file; your original stays untouched.

My antivirus complained. What now?

Unzip first, then run (do not double-click inside the zip). If Windows SmartScreen appears, click "More info" then "Run anyway". If the file was quarantined, restore it and add an exclusion. The package includes a SHA-256 fingerprint you can check.

I have a new computer. Do I pay again?

No. Send the new Machine ID and we issue a new key - one machine move is free.

Can the Personal edition process a whole folder?

No, Personal works one file at a time. Batch processing and the summary report are Professional features.

Is there a subscription?

No. It is a one-time payment. Version 1.x will not ask you for more money; a future major version would be announced separately, with a discount for existing customers.

How is the license delivered?

Right after payment you get the download and the activation steps. Send us the Machine ID shown in the activation window and we issue your key, usually within a few hours.

Do you offer refunds?

No - once a license key has been issued the sale is final, because a key is a one-off digital item. That is exactly why there is a free trial with every feature unlocked: please run it on your own file first. See the refund policy for the few cases where we do refund.