Your PIN
isn't lost.
It stayed
in your hands.
When you try to recall it by thinking, you freeze. When your fingers move on their own, they know the way. FingerCode captures that pattern and organizes the statistics so you can uncover the most likely sequence.
FingerCode does not crack or guess codes. It shows statistical results — not certainties — for you to interpret. Use it only on your own codes or with legal authorization.
You don't guess.
You let the statistics speak.
Instead of asking your head to remember, FingerCode asks your fingers — many times — and organizes the data until the pattern becomes visible.
Create an analysis
A dedicated workspace for the PIN you want to analyze: "old iPhone", "safe", "bank card".
Type without thinking
The phone vibrates between attempts. When it stops, you type. No pressure. Just let your fingers move on their own.
Repeat many times
Dozens or hundreds of times. The deviations are biological noise that the statistics average out and filter.
Read the data
The most frequent sequences, their statistical confidence, position probability and the heatmap of your taps.
Why your fingers
remember what you forget.
FingerCode is not a guessing tool. It is built on decades of research into how the body stores and reproduces movement. Three pillars explain it.
Motor chunking
When you type a PIN thousands of times, your brain stops processing it digit by digit. It packs the whole sequence into a single fluid movement, run by the motor cortex and the basal ganglia — not by conscious thought.
In the app: you capture the PIN on a keypad with realistic proportions, adjustable to any screen, to activate purely spatial and physical memory.
Choking under pressure
Explicit Monitoring Theory shows that consciously controlling an already-automatic skill breaks its flow. The prefrontal cortex gets in the way of the automatic movement — the harder you try to "remember", the more it slips.
In the app: a haptic vibration rhythm paces you. You wait for the vibration to stop before each attempt, which interrupts rational guessing and lets the automatic movement take over.
Keystroke dynamics
There is natural noise in human movement — you never touch the exact same pixel twice. But across enough samples, the statistical distribution of your taps cancels the error and reveals the underlying sequence with high probability.
In the app: frequency analysis powers the touch heatmap by position, the top combinations and the statistical confidence indices.
FingerCode organizes the statistics of the motor data you enter yourself. It is a mathematical mirror, not an oracle: it shows frequency, probability and confidence so that you are the one who reads the results and decides, on your own judgment.
Built so the
pattern emerges clearly.
A keypad that mimics the real one
Designed like the iPhone lock screen keypad so your hand moves exactly as it does in real life.
Three keypad modes
Numbers for logical memory. Shapes for spatial memory. Blank for pure muscle memory.
Vibration-guided rhythm
The keypad only activates when it vibrates. Each attempt is a genuine reproduction, not a mechanical loop.
Full calibration
Adjust key size, spacing and position to exactly mimic your real device, from iPhone mini to Max.
Statistical analysis
Most frequent sequences, statistical confidence, position probability and consistency over time.
Touch heatmap
See where your fingers physically land, filterable digit by digit to isolate strong and weak positions.
Your PIN never leaves
your iPhone.
FingerCode has no servers. No accounts. No network. Keystroke dynamics and heatmaps are behavioral biometrics — which is why they are processed and stored only on your device.
Privacy isn't an option. It's the architecture.
- 100% offline — works with no internet connection
- No accounts or sign-up — open the app and use it
- Zero telemetry — no third-party SDKs or analytics
- Local persistence (SwiftData) — everything lives on your iPhone
- A personal, legitimate recovery tool
Important notice. FingerCode's results are statistical estimates, not guarantees, and the most frequent pattern may not be your real PIN. Entering the wrong passcode too many times on a real device can disable it or permanently erase all of its data. You are solely responsible for how you use the results, and you should only use the app on codes you own or are legally authorized to access.
Your PIN didn't leave.
It just left your head.
Download FingerCode on the App Store and let your fingers speak. If you have questions, the support center and legal documents are one click away.