The Credentials
Bank aggregation hands a third party a live, categorised feed of everything you buy, everywhere, forever — the most commercially valuable document about you in existence, sitting on a server you have never seen.
Lab
The LabWhat we build, and the rule we build to The DoctrineFour commitments, stated as constraints Engineering StandardHow the work is held to account MethodologyEvery formula and test case, published NotesShort, sourced, and checked against the maths What We ShipEverything currently in the world Contactsupport@thebrinklabs.comInstruments
I · Plan
Zero-Based BudgetGive every unit of income a job before you spend it. 50/30/20 BudgetNeeds, wants and savings — against what you really spend. True Hourly WageWhat an hour of your life actually pays, after the job takes its cut.II · Protect
Subscription AuditWhat renting your life costs per use, per year, per decade. Emergency FundSavings divided by the month you cannot avoid. Savings GoalOne monthly figure for every known future cost.III · Borrow
Loan & EMIThe monthly payment, the interest and every month of the schedule. Debt PayoffAvalanche or snowball, priced to the month and the cent.IV · Grow
Rule of 72How long until money, debt or prices double. Net WorthEverything you own against everything you owe — and where it is heading. All 10 instrumentsThe index, by chapterMyneWallet
OverviewThe app, and what it refuses to do How It WorksEnvelopes, capture, analysis What It CostsFree tier and the one-time unlock QuestionsFourteen answers, no marketing Privacy PolicyFourteen sections, plainly written Get it on Google PlayAndroid · the only official listingAn expense tracker and zero-based budget planner that never asks for a bank login, keeps your ledger on your phone, and works fully in airplane mode. It goes online only when you back up — encrypted — to your own Drive, or buy PRO.
Free to use. One-time unlock for the full engine. No subscription, ever.
The Short Version
The Three Ransoms
A bank login. A monthly payment. And permission to study what you buy. MyneWallet asks for none of them.
Bank aggregation hands a third party a live, categorised feed of everything you buy, everywhere, forever — the most commercially valuable document about you in existence, sitting on a server you have never seen.
A tool you open daily makes a superb subscription. Miss one payment and the app you fed for three years locks you out of your own history. That is not owning software. That is renting your own numbers.
Ad interstitials, upsell modals, sync spinners. Every second between I spent money and it is logged is a second you will eventually stop spending. An untracked week is what actually breaks a budget.
Buy It Once. Log In Seconds. Keep Everything.
How It Works
Most finance apps do many things adequately. This one does three things and holds itself to a standard on each.
Every dollar that lands gets a destination. Rent, groceries, the trip in March, the card you are digging out of. When To Assign reaches zero, every envelope on screen is a promise already funded.
A tracker only works if you open it. This one is engineered around one number: the seconds between spending and logging. Two taps for the common case, the full form when you want it, no network round-trip either way.
Net Worth and Obligations in one place: what you own, what you owe, what is scheduled to leave, and, with PRO, where the balance lands in thirty days — computed from real obligations, never a hand-waved average.
The Vault
We do not have any. Your ledger lives in MyneWallet’s private storage on your phone, protected by Android’s own encryption, and The Brink Labs operates no server that receives it. That is the difference between a privacy policy and a privacy architecture: one is a promise about what a company will choose to do, the other is a statement about what is possible.
Transparent Pricing
The core engine is free, permanently. If you want the deep analytics and unlimited structure, you buy it once — and it is yours for good.
Not a trial and not a crippled demo. A complete, private, offline money manager that never expires and never shows you an advertisement.
Every limit removed, and new PRO capabilities included as they ship. Tied to your Google account, so it survives reinstalls and new phones.
Try The Method First
The same architecture, running in your browser. Allocate a budget, price your subscriptions, find your runway or measure your net worth — without downloading anything or telling us who you are.
Open the instrumentsStraight Answers
Yes. MyneWallet is free to download and the core budgeting and tracking engine is free permanently — no advertisements, no trial expiry. PRO is an optional one-time purchase that removes every limit. It is not a subscription and it never renews.
Yes — fully. There is no account and no sign-in, and every budgeting, tracking and analysis feature works in airplane mode. MyneWallet goes online only when you back up to or restore from your own Google Drive, and when Google Play shows the PRO price or completes a purchase.
No. MyneWallet never asks for bank credentials and uses no aggregation service. That is deliberate twice over: continuous read access to your accounts is the single largest privacy concession in personal finance software, and the two seconds spent logging a purchase are the moment you actually notice it. The app is engineered to make those two seconds as fast as physically possible, not to remove them.
In MyneWallet’s private storage on your phone, which Android isolates from every other app and protects with the phone’s own encryption. MyneWallet does not encrypt this working copy itself — its backups are encrypted. The Brink Labs runs no server that holds your financial data. No copy of your ledger exists outside your phone unless you choose to back it up — encrypted — to your own Google Drive or a file you keep.
You restore from a backup you control. MyneWallet encrypts each backup on your phone with AES-256-GCM before it leaves, keyed from your passphrase (PBKDF2-HMAC-SHA256, 600,000 iterations), and stores it in a hidden app folder in your own Google Drive or as a file you save. On a new phone, install MyneWallet, sign in to the same Google account and enter your passphrase. You can also export a plain CSV at any time.
No. PRO is a single one-time unlock tied to your Google account. It never expires, it survives a reinstall and a new phone, and new PRO capabilities added in future updates are included rather than sold again.
Zero-based budgeting means assigning every unit of income a specific job before it is spent, until the amount left to assign reaches zero. Instead of reviewing what you spent after the fact, you decide in advance what each dollar is for. MyneWallet implements it with envelopes, an Auto Assign tool, and a live To Assign counter that reads zero when the plan is complete.
Yes. MyneWallet imports CSV files and adopts the categories it finds automatically, ranked by how material each one actually is, so your history arrives intact rather than collapsing into an uncategorised bucket. Export is equally complete — CSV for your raw data, and with PRO, a formatted PDF statement.
No. There is no advertising network, no attribution SDK and no product-analytics SDK in the app, and Google’s Firebase suite is not integrated. Do not take our word for it: put the app behind a network monitor, or simply use it in airplane mode: everything except backup and purchases keeps working.
Android, through Google Play. There is no web version and no cross-device sync — a direct and deliberate consequence of storing your ledger only on your own device.
From one-time PRO unlocks, and from nothing else. There is no advertising inventory, no data brokerage, no affiliate placement and no recurring revenue to protect, which is precisely why the app can afford to work entirely offline. A business model that depends on your attention or your ledger produces different software, and the difference is visible in every screen.
No. There is no sign-up, no email address and no password. You open the app and start budgeting. An account exists to identify you to a server, and there is no server here to be identified to — the only optional Google sign-in is for backing up an already-encrypted file to your own Google Drive.
The free tier allows 3 active accounts, 7 active envelopes, 10 active expense and 4 active income categories, and 4 active obligations, and lets you browse any of your last 3 months, one month at a time, in the ledger and in the Category, Nature, Tag and Heatmap analytics. Tags are unlimited, nothing you enter is ever deleted, nothing is time-limited, and there are no advertisements. The one-time PRO unlock removes every cap, combines months into one view and extends history to 12 months.
Not currently. MyneWallet is an Android application distributed through Google Play, and there is no iOS release, no web application and no desktop client at this time.
Transparency
Published in full so a reviewer, a researcher or an answer engine can find it without hunting. The complete legal text lives in the Privacy Policy.
| Purpose of the app | An offline-first personal finance engine: track expenses, run zero-based budgets, monitor net worth and obligations, all on the device. |
|---|---|
| Scope requested | Google Drive, app-data scope only (drive.appdata), via OAuth. |
| Used for | Backing up and restoring your own encrypted ledger to your own Drive. Nothing else. |
| Never used for | Reading, aggregating, profiling or transmitting your data to any third-party server. |
| Servers holding your data | None. The Brink Labs operates no such server. |
MyneWallet’s use and transfer of information received from Google APIs to any other app will adhere to the Google API Services User Data Policy, including the Limited Use requirements.