Holdings
What do I hold?
Every asset in its own position, its share of the whole, and how it has done against simply holding bitcoin.
Perly App
Every sat, in its place.
A private ledger for your Bitcoin, and for your other coins too. Cost basis, profit and return, worked out from every buy and sell you record — and sealed in your browser before any of it reaches us.
- No wallet to connect
- No seed phrase
- No exchange keys
The ledger
Three questions, one ledger.
Everything in Perly App is worked out from the fills you record. Nothing is estimated, and nothing is read from an exchange.
Cost basis
What did it cost me?
Cost basis and average buy price from every fill, fees included, with realized and unrealized profit kept apart.
Return
How am I doing?
Profit and return in dollars — or switch the unit to bitcoin and see whether the rest of the portfolio beat just holding BTC.
Figures from the demo portfolio in the tour.
How it works
From an exchange export to a clear picture.
- 1
Bring your history
Import the CSV your exchange already gives you — Coinbase, Binance, Kraken and most others are read on their own — type a fill in by hand, or watch a Bitcoin address. Nothing is saved until you have seen the preview.
- 2
Seal it
Choose one encryption password. Amounts are encrypted in your browser before they are stored; nobody at Perly can read them, or reset the password for you.
- 3
Read it
Cost basis, profit, return and every chart redraw from each fill you add. Switch to bitcoin as the unit whenever the dollar is the wrong ruler.
Charts
Charts drawn from your own fills.
Not a market feed with your balance laid on top: every line and every dot is something you did.
01Stacking
Every fill on the price — green bought, red sold, and the size of the dot is the amount.
02Stacking calendar
A year of habit, one cell a day. A week with a buy in it keeps the streak alive.
03PnL calendar
How the value moved, day by day, in green and in red.
04Holdings
The bitcoin you held after each fill, as a staircase.
05Invested per month
How much went in, month by month.
Around the ledger
What a long-term holder asks for, and nothing else.
A ledger you can check
Every fill with its value today, its profit and its return — and the whole ledger exported whenever you want it.
Every kind of entry
Buys and sells, transfers between your own wallets, income, gifts and coins spent — each counted the way it should be.
Alerts that find you
Price targets and market signals, checked every minute, delivered in the browser or through Perly's Telegram bot.
A plan you can keep
Set a recurring buy and Perly App reminds you when it is due, then counts how many you kept.
A mirror, not advice
Arithmetic over your own history — your rhythm, your spread, where the price stands against your average. It never tells you to buy or sell.
A report your accountant can read
Any year of the ledger, by average cost, FIFO or LIFO, saved as a PDF.
Figures from the demo portfolio in the tour.
Private by design
Nothing to connect. Nothing to leak.
Perly never asks for access to your coins. It keeps a record of what you tell it, encrypted with a password only you know.
- No wallet connection, no seed phrase, no exchange API keys — ever.
- Amounts encrypted in your browser, on by default for every portfolio.
- A recovery code and a backup file that are yours alone: Perly keeps no copy of either.
- Export the ledger, or delete the account and everything in it, whenever you like.
- Sign in with an email, or with Google or X — from Google, only your name, email address and profile picture.
Pricing
Try it for 14 days. Then choose.
From registration the whole app is yours for 14 days, with nothing to pay up front. After that your portfolios stay readable and exportable; to keep adding, take a seat in the club or a year of the subscription.
Nothing is on sale yet: the prices are published before the first one is sold.
See the full pricingTo start
14 days free
The whole app, from the day you register. No card.
Subscription
$84 a year
$7 a month, paid yearly
Or a seat in the club
from$21once
One payment. Nothing renews and nothing expires.
Questions
Do I have to connect a wallet or an exchange?
No. Perly App never connects to your coins. You import a CSV, type a fill in, or give it a public Bitcoin address or xpub to watch — never a private key, and never an API key.
Can Perly see my portfolio?
Not its amounts. Encryption is on by default, and amounts are encrypted in your browser before they are stored. Price alerts are the one exception: to fire while you are away, an alert's target is kept where the server can read it, and the app says so where you set one.
How do I sign in, and what does Perly get from Google?
With an email and a password, or with your Google or X account. Signing in with Google shares your name, email address and profile picture; Perly App uses the address to create your account and sign you in, and reads nothing else from your Google account — no mail, no contacts, no files. The same account opens Perly Invoice. The Privacy Policy lists all of it.
Which coins does it track?
Perly App is built around Bitcoin and tracks other coins too, each in its own position with its own cost basis — and each measured against bitcoin as well as the dollar.
What happens when the free days are over?
Nothing is taken away. Your portfolios stay readable, exportable and deletable; adding and changing entries needs a club seat or a yearly subscription.
Does it work on a phone?
Yes. Perly App runs in the browser and installs to the home screen, on a phone or on a computer.
Is this financial advice?
No. Everything Perly App shows is arithmetic over your own transactions and public market data. What to do with it is always yours to decide.
Start with the stack you already have.
Import one CSV and see your real cost basis in minutes.
Or look at the free market charts first