Best apps for investing: how to open an account and start with little money.

Investment apps combine registration, product information, and order placement. Minimum investment amount, costs, and account opening time vary by institution and product. Before investing, understand the risks, liquidity, and how to verify the transaction record.

This guide follows the path from registration to redemption, with examples from brokers and banks. The choice of product depends on your goals and your situation; the interface does not eliminate risks nor define a suitable investment for everyone.

What happens when you open an account with a brokerage firm?

A brokerage firm acts as an intermediary: it is authorized by the Central Bank and the CVM (Brazilian Securities and Exchange Commission) to receive your order, execute the purchase, and keep the record. The money you transfer is held in an account in your name, and each purchased security is registered with a central custodian, which in Brazil is B3 for stocks, real estate funds, Treasury Direct, and most fixed income investments. The registration is issued under your CPF (Brazilian taxpayer ID), not the brokerage firm's name.

This changes the game in practice: if the brokerage firm closes its doors, the security remains yours. The solution is to request a transfer of custody to another institution, and the invested money doesn't disappear along with the company. Warren, for example, states in its own information sheet that client custody remains with Banco Santander.

The stock exchange itself has an app, called B3, which the fact sheet describes as the official Investor Area app: it consolidates investments from all brokerage firms into a single statement. It's the quickest way to check if what the brokerage app shows matches what's registered under your CPF (Brazilian tax identification number).

How to open an account: step by step

The process is practically the same at XP, Rico, BTG, Warren, Nubank, and Inter. Use the official app store by tapping the button on the cards in this guide or searching for the app's exact name.

1. Download the app from Google Play or the App Store. XP, Rico, Warren, and BTG are listed in both stores, and check the developer and the institution's identity; being the top search result does not guarantee authenticity.
2. Please provide your CPF (Brazilian tax identification number), email address, and mobile phone number. The CPF (Brazilian taxpayer ID) must be in good standing with the Federal Revenue Service; if there are any pending issues, the registration will be blocked on the first screen.
3. Take a picture of the document and take a selfie. Brazilian ID card (RG) or driver's license (CNH). The selfie is for biometric validation and serves to prevent someone else from opening an account using your data.
4. Declare your income and assets. The question is required by law (the know-your-customer rule), and for common amounts, most brokers do not ask for proof.
5. Take the personality test. Some questions regarding deadlines, objectives, and reaction to losses; the next section explains what it does.
6. Please wait for approval. It can be processed in minutes or take a business day; the BTG form literally says to wait for approval. When it takes longer, the most common reason is an illegible photo.
7. Transfer money via Pix or TED. The brokerage only accepts deposits from accounts under the same CPF (Brazilian tax identification number); transfers from third parties will be returned.
8. Choose the product and confirm. The app shows the value, the rate, the term and, since CVM Resolution 179, how much the brokerage firm receives for that product.

Understanding the profile questionnaire

Before authorizing your first purchase, the app administers a questionnaire called suitability. This questionnaire is required by the CVM (Brazilian Securities and Exchange Commission), Resolution CVM 30, and it's not just for show: the result (conservative, moderate, or aggressive) is saved in your account and compared to each product you try to buy.

Products incompatible with the profile may generate alerts, requirements, or restrictions depending on the operation and applicable rules. Do not alter answers to circumvent this assessment; clarify any doubts with the institution.

The suitability questionnaire considers your goals, knowledge, and financial situation, based on the information provided. It helps assess compatibility, but does not guarantee a return or replace planning. Answer accurately and review your profile when your situation changes; do not alter your answers just to unlock a product.

What appears on the screen: each acronym explained

A brokerage's product shelf is divided into fixed income (you lend money and know the remuneration rule from the beginning) and variable income (you buy a piece of something and the price changes every day). The table summarizes what each term means, who guarantees it, and when the money is returned.

Product	What is it	Who guarantees it?	When the money comes back
Selic Treasury	A government bond that tracks the benchmark interest rate.	National Treasury	You can settle on D+0 before 1 PM under normal conditions; check the institution's deadline.
IPCA+ and Fixed-Rate Treasury Bonds	Government bond with a pre-fixed rate to maturity; before that, the price fluctuates.	National Treasury	D+0 or D+1 depending on the time and conditions, at market price.
CDB	Loan from a bank in exchange for interest (percentage of the CDI or fixed rate)	FGC, up to R$ 250 thousand per CPF or CNPJ per financial institution or conglomerate.	Daily liquidity (D+0) or only at maturity, depending on the security.
LCI and LCA	Loan from a bank backed by real estate or agricultural credit; exempt from income tax for individuals.	FGC, same limit as CDB.	Only after the grace period defined in the issuance
Investment fund	A share of a portfolio managed by a manager, with an administration fee.	No guarantee; the assets belong to the shareholders.	Quotation and settlement period for the prospectus, from D+1 to D+30 or more.
Stocks and REITs	A fraction of a company or real estate fund traded on the stock exchange.	No guarantee; the price is the market price.	Net sales in D+2

FGC and Treasury: who returns the money if something goes wrong?

The FGC covers eligible products, such as CDBs, RDBs, LCIs, and LCAs, within the limits of the regulations: up to R$$ 250,000 per CPF or CNPJ per financial institution or conglomerate, considering principal and covered income, and a global ceiling of R$$ 1 million in guarantees paid every four years. Coverage depends on the issuer and the product; it is not immediate redemption nor insurance against all losses.

Funds, stocks, and REITs (Real Estate Investment Trusts) are not covered by the FGC (Credit Guarantee Fund). Buyers assume that prices will go up and down, and no brokerage can promise otherwise. Government bonds, on the other hand, are guaranteed by the National Treasury itself; the official website of the Treasury can provide more information. Direct Treasury on gov.br It explains the program and the types of titles.

There is a small cost that appears only in Treasury bonds: the B3 custody fee. gov.br investor portal It informs that there is a total exemption from this fee for investments of up to R$10,000 in Tesouro Selic (Brazilian Treasury Selic bonds), which makes this bond the most common entry point for beginners.

XP, Rico, Warren, and BTG: how each app is organized

Check the account terms and services on the official pages and channels. The way products are presented and charges for services varies between institutions.

XP Investments

The XP app brings together banking services and investments on the same screen and allows you to turn the stock market tab on or off: those who only want fixed income can hide the charts and have a cleaner interface, according to the store's own description. It has a rating of 3.9 on Google Play, with over 300,000 reviews and 10 million downloads; on the App Store, the same app has a rating of 4.7.

Rich

Rico describes in its product page what it offers: Treasury Direct, CDB, LCI, LCA, CRI and CRA in fixed income; funds, real estate funds, BDRs, mini-contracts and stocks in variable income; home broker without brokerage fees on stocks; digital account with Pix and card. It is the most explicit product line among the four, and the app has a rating of 3.9 and 10 million downloads on Google Play, and 4.7 on the App Store.

Warren Investments

Warren offers investment services and managed portfolios. Check the minimum investment amount, custody fees, and current rate in the contract for your chosen service. Don't confuse ANBIMA's self-regulation with authorization from a regulator. Self-managed and self-traded asset management and trading options may have different conditions.

BTG Pactual Investments

BTG separates the current account (BTG Pactual Banking app) from the investment app. In the latter, the profile promises zero brokerage fees on stocks, REITs, and BDRs, recommended portfolios for various profiles, an investment simulator, and products exempt from income tax, in addition to loans secured by investments. It has a rating of 4.6 to 5 million downloads on Google Play; on the App Store, BTG Pactual Investimentos has a rating of 4.8.

How to withdraw: D+0, D+1 and D+2 explained

Withdrawing money has two steps: the money leaves the investment and goes into the brokerage account, then it goes from the brokerage to your bank. The first step is the one with a deadline, and the deadline is set by the product, not the app.

• CDB with daily liquidity: The redemption is processed on the same business day (D+0), generally when requested within market hours.
• Direct Treasury: Redemptions requested before 1 PM can be settled in D+0 under normal conditions; after that time or in specific situations, D+1 will apply.
• Stocks and REITs: After the sale, the exchange settles in two business days (D+2). If you sold on Monday, the money will be available on Wednesday.
• Funds: The subscription period plus the settlement period is stated in the fund's prospectus and varies from one day to more than a month.
• CDB, LCI and LCA without liquidity: Only at maturity or at the end of the grace period; before that, the availability of the exit option depends on the product's conditions.

After settlement, the transfer to the bank follows the institution's schedules, limits, and procedures. Check the full timeframe before making any commitments regarding the remaining invested amount.

Common mistakes beginners make

• Put your emergency fund into action or into reserve. The tire goes flat on Tuesday, and the sale only closes on Thursday, at a price you don't choose. Reserves require daily liquidity.
• Paying for a "signals group" or mentorship before opening an account. All the introductory material is available for free within the apps, and the CVM (Brazilian Securities and Exchange Commission) only authorizes registered individuals to recommend assets.
• Deposit to "release" a withdrawal. Legitimate charges and taxes must be documented. Requesting a Pix payment to an unfamiliar account as a condition for releasing funds requires independent verification through official channels.
• Just look at the CDI percentage. A 120% CDI-linked CDB that only matures in three years and a 100% CDB with daily liquidity solve different problems; tax, term, and grace period are part of the equation.
• Leaving money idle in a brokerage account. Uninvested funds do not generate returns for you unless the institution offers interest on those funds. If you haven't decided yet, consider keeping the available funds in your original account.
• Confusing "recommended portfolio" with guarantee. It's a suggestion based on profile, with the risk described in the product itself, and no one is responsible for price variations.

If you have debts with interest, compare their costs and prioritize essential expenses before deciding on an investment. Debt organization and negotiation guide It helps to gather this information.

It's a matter of scale: investment returns interest on what you already have; it doesn't replace income. Those looking for ways to make money using their cell phones will find it on... guide to apps for making money The order of magnitude of each type of task, and it's about change, not salary.

Common questions

Is there a tax on investing through the app?

Taxation varies depending on the product, term, and transaction. Fixed income, funds, stocks, and REITs do not follow a single rule: there is withholding tax, cases of conditional exemption, and situations where the investor must calculate the tax. Day trading and ETFs, for example, should not automatically receive the monthly exemption applicable to certain stock sales. Consult the institution's statement and the current guidance from the Federal Revenue Service before calculating or declaring.

Does opening an account require investment?

Check the institution's terms and conditions. Registration does not replace an analysis of each product; read about costs and any maintenance requirements before transferring money.

Does the FGC cover all investments?

No. Coverage depends on the product, the issuer, and the limits of the regulations. Stocks, funds, and REITs do not have this guarantee, and coverage does not equate to immediate redemption.

How can I compare this investment to my budget?

Gather expenses, deadlines, and commitments before choosing. monthly budget guide It helps to organize available funds and future obligations.

Start by checking with the institution, its authorization, and account terms. Read about costs, risks, liquidity, and taxation before transferring money. Investing just to familiarize yourself with the interface isn't necessary, and a low minimum investment doesn't make the product suitable for everyone. Prioritize essential expenses and commitments before deciding how much you can keep invested.

Read also

• Digital banks: best apps for free accounts and no-annual-fee cards
• Saving money with apps: how to create and follow a monthly budget
• Making money with apps: how much each type of app pays per month
• Debt management apps: map out what you owe and negotiate via your mobile phone.