Your book stays on your phone.
Keepbook keeps spends, bills, splits and goals in an encrypted book on your Android phone. No account, no server, no ads. You decide what leaves, and where it goes.
Your book
Encrypted on this phone, with a key the phone keeps in the Android Keystore.
Receipts are read on the phone. Pro purchases go through Google Play.
01 · App lock
Locked when you look away.
Turn on the lock and Keepbook asks for your fingerprint, face or the phone’s own screen lock. Keepbook never sees them.
- Locks after a minute away, timed on a clock that keeps counting while the phone sleeps.
- No preview in Recents while the lock is on. Leaving covers the book at once.
- Hide in Recents also blocks screenshots.
- A half-typed entry is still there after you unlock.
- OpenYour book, as you left it.
- You leaveThe book is covered at once.
- Time away0:00 of 1:00
- You come backIt asks before it opens.
02 · Backups
Sealed with a passphrase only you know.
A lost phone shouldn’t mean a lost book. Pick a folder, set a passphrase, and Keepbook writes an encrypted copy there. It opens on any phone with Keepbook and that passphrase.
- 12 characters or four words. Common passwords and keyboard runs are refused.
- AES-256-GCM, with a key made from your passphrase in 600,000 rounds. Without it, nobody, including us, can open the file.
- Photos and documents go in too, unless you switch them off.
- Free: Back up now once a month. Pro: any time, plus a weekly copy when you open Keepbook. Restore is never limited.
Passphrase
- 12 characters or 4 words
- Not a common password
- Not a keyboard run
keepbook-20261110-0930.kbkEncrypted
- snapshot · your book
- receipts/ · photos
- vault/ · warranty cards
- end · file count
To your backup folderBack up now
Left out of every backup: payment alert text, the Capture inbox, and this phone’s own settings such as the lock and the backup folder.
03 · Year pack
A year, zipped for your accountant.
One zip: a PDF summary, every entry as a spreadsheet, and your receipts. It is made on the phone and saved only where you choose.
An Indian rupee book counts April to March. Switch to January to December if your year runs that way.
The CSV and receipts are free. The PDF summary comes with Pro.
Keepbook-FY2025-26.zip
- summary.pdfTotals, each month, by categoryPro
- entries.csvEvery entry · 1,284 rowsFree
- receipts/96 photosFree
Keepbook year pack
Financial year 2025–26 · 1 Apr 2025 to 31 Mar 2026
Made 10 Nov 2026 from the book on the phone.
Totals
| Spent | ₹3,84,120 |
| Income | ₹9,60,000 |
| Entries | 1,284 |
| Receipts attached | 96 |
Month
Every entry is in entries.csv; receipts are in the receipts folder. Amounts are as recorded in Keepbook. This is not a tax statement.
04 · Languages
Thirteen languages. Same book.
Keepbook follows your phone’s language, or you pick one in You → Language. Arabic reads right to left. Amounts keep the digits 0 to 9.
The year pack PDF follows too in Spanish, Portuguese, Indonesian and Arabic. In the Indian languages its labels stay in English for now, and names you typed still print in your script.
Spent in November
₹18,940
₹11,060 left of ₹30,000
Save ₹340
Keepbook is in testing on Google Play.
Write to us to ask for a place in the test. Your book stays on your phone either way.
Terms
The short version. The full terms decide.
- Your licence. Unit Labs gives you a personal licence to use Keepbook on phones you own or control. It is not meant for children under 13.
- Free and Pro. The book, drafts and Save, caps, goals, search, CSV export, restore and a monthly backup are free. Keepbook Pro is optional and billed by Google Play, which shows the price.
- Refunds. All sales are final, except where the Refunds policy, Google Play’s own policy or a law says otherwise.
- Your data. Your book is encrypted on your phone. There is no account and no server, so we can’t recover it. Backups open only with your passphrase; we can’t reset it.
- A notebook, not advice. Keepbook does not move money, give credit or connect to your bank. Check each draft before you Save; totals and the year pack are your own records, not tax or financial advice.
- No warranty. Keepbook is provided as is. Our liability is limited to what you paid for Pro in the 12 months before a claim. The laws of India apply.