10 must-have data privacy tools for 2025: Stop data tracking now

by Esprezzo Team on January 28, 2025

Best data privacy tools

Earlier this month, a massive data breach exposed the precise location data of millions of users across popular apps including Candy Crush, Tinder, and MyFitnessPal. The breach was particularly alarming because some of the affected apps were VPNs and privacy tools — apps that people trusted to protect their data.

This incident exposed the use of real-time bidding (RTB), which involves “data brokers” auctioning off your browsing activity and personal information to  the highest bidder — all to power the advertising industry. Your location, device details, content you viewed, and other private information are shared with auction winners in milliseconds, often without your knowledge. According to the Electronic Frontier Foundation (EFF), “while only one advertiser wins the auction, all participants receive the data,” including malicious parties posing as ad buyers.

And that’s just one of the latest hacks in the news. With today being Data Privacy Day and new data breaches happening left and right, there’s no better time to take control of your digital privacy. While it can sound daunting, protecting yourself is simpler than you might think. Let's look at ten essential tools that can help protect your privacy in 2025.

Quick tip to get started:

Data brokers and apps are constantly trying to track your every move online. Here are two simple ways to throw them off:

  • iPhone users: Head to Settings → Privacy & Security → Tracking and turn off "Allow Apps to Request to Track"
  • Android users: Try DuckDuckGo's App Tracking Protection to block trackers
    This helps limit the amount of personal information apps can collect and share.

Disclaimer: The following tools are presented for educational purposes only. We are not endorsing, sponsoring, or receiving compensation from any of these privacy services. Always conduct your own research, read reviews, and verify the credibility of any privacy tool before use.

Brave Browser: Privacy-first browsing

Brave Browser privacy settingsBrave Browser privacy settings. Source: Brave

The foundation of your online privacy starts with your browser. While Chrome and Safari collect some user data by default, Brave stands out by blocking trackers, third-party cookies, and ads automatically, putting privacy first.

What makes Brave stand out is how the browser prioritizes online privacy without sacrificing performance:

  • No trackers or ads means web pages load noticeably faster, and pages aren’t cluttered with ads that make it hard to focus on content
  • Direct connection to the decentralized web through IPFS lets you access content that can't easily be censored
  • Private browsing with Tor integration helps hide your IP address and location

For anyone frustrated with Google's data harvesting or skeptical of Apple's privacy marketing, Brave offers a serious alternative. It's built on the same Chromium platform as Chrome, so you get familiar speed and compatibility — just with privacy protection turned on from the start.

Brave browser best for:

Users who want Chrome's speed and compatibility without Google's tracking
Privacy-conscious users who still want a seamless browsing experience
People looking to access decentralized content and Web3 applications

DuckDuckGo: Private search engine

DuckDuckGo search engineDuckDuckGo search engine. Source: DuckDuckG

While most search engines store and build a profile of your every online move, DuckDuckGo takes a different route. Built around its privacy-first search engine, the platform offers tools that help you browse and search without becoming a data point for advertisers.

Key privacy features include:

  • Private search with zero history collection or user profiling
  • Standalone browser apps for Mac, Windows, iPhone and Android with built-in tracking protection
  • Email protection service that strips trackers from your incoming messages
  • Browser extensions for desktop to extend your privacy protection (you can add the DuckDuckGo extension to Brave)

The Gravy Analytics breach laid bare the dangers of unchecked app tracking, especially on Android devices. DuckDuckGo's tools act as a shield, blocking trackers before they can vacuum up your personal information.

DuckDuckGo best for:

Users who want to search the web without being profiled
Android users looking for comprehensive tracking protection
Anyone wanting to keep their email inbox free from trackers

Proton: Private email, wallet, VPN, storage

Swiss-based Proton came to fame for ProtonMail, "encrypted email that's private by default". Since then, the company has expanded its offerings to include a VPN, cloud storage, password manager, calendar, and self-custody crypto wallet — all based around their belief that "Nobody should be able to exploit your data, period."

ProtonMail inbox

ProtonMail inbox. Source: ProtonMail

ProtonMail uses end-to-end and zero-access encryption, ensuring your messages stay between you and your intended recipient — and no one else.

Key privacy features include:

  • Rock-solid encryption for emails between ProtonMail users
  • Zero-access encryption that keeps even ProtonMail's own team from peeking at your messages
  • Encrypted calendar that keeps your schedule as private as your conversations
  • Headquartered in Switzerland, with some of the world's strongest privacy protections
  • Optional encrypted storage for contacts and attachments

Unlike other email services run by companies that make money from selling your information to advertisers, ProtonMail works seamlessly with most email clients.

ProtonMail best for:

Professionals who need end-to-end encrypted communication
Users looking for a complete privacy suite (email, calendar, VPN, storage)
Privacy-focused individuals who need Swiss privacy law protection

Venice: Private AI interactions

Venice AI private chat

Venice AI private chat. Source: Venice AI

Generative AI apps like ChatGPT and Claude have become essential for everything from writing code to generating images. However, most of these tools store your conversation history, attach it to your identity, and their employees can review your conversations "to improve". Venice takes a different approach to generative AI apps, keeping your information right where it belongs—with you.

Key features include:

  • Code writing and debugging without exposing your codebase
  • AI text generation that keeps your prompts and outputs private
  • Image creation tools that shield your creative process
  • Uncensored AI chat that respects your conversation's confidentiality

Especially for developers and teams working with sensitive information, Venice's privacy-focused approach solves a crucial problem. They also purport to use "leading open-source AI models".

Venice AI best for:

Developers working with sensitive or proprietary code
Teams needing private AI assistance for confidential projects
Creative professionals who want to keep their AI experiments private

OneTrust: Enterprise data privacy governance

OneTrust data dashboards

OneTrust data dashboard. Source: OneTrust

As organizations handle more data and AI, responsible management becomes critical. OneTrust helps companies enforce compliance and optimize data strategies while protecting user privacy.

Key features include:

  • Automated privacy request handling
  • Data governance and risk management
  • AI system compliance monitoring
  • Privacy-focused consent management
  • Data collection and usage controls

While primarily serving enterprises, you've likely encountered OneTrust's tools through cookie consent banners or privacy request forms on major websites. The platform helps organizations balance data innovation with privacy protection and regulatory compliance.

OneTrust best for:

Enterprise organizations managing complex privacy compliance
Companies handling sensitive customer data across multiple regions
Businesses implementing AI systems that need privacy governance

Signal: Encrypted messaging app

Signal iPhone app

Signal iPhone app. Source: Signal

We all want our private conversations to stay private. Signal takes this seriously, using encryption for every message, call, and chat. Unlike messaging apps that track your interactions, Signal ensures your messages are seen only by you and your intended recipients.

Key features include:

  • End-to-end encryption for messages and calls
  • Zero data collection — no storing messages or tracking conversations
  • Disappearing messages for those moments you want to leave no trace
  • Username options to keep your phone number private
  • Encrypted group chats that feel just like your usual group conversations

Being open source means security experts can analyze and scrutinize the code for potential security vulnerabilities and to ensure they’re keeping their promise of protecting your privacy.

Signal best for:

Users who need completely private messaging and calling
Teams requiring secure group communications and file sharing
Privacy advocates who prefer open-source, auditable software

Privado: Privacy scanning for developers

Privado AI platform UI

Privado AI platform UI. Source: Privado AI

Privado helps organizations identify and manage privacy risks in their software by automatically scanning code for personal data handling. Unlike manual privacy assessments that can take months, Privado provides real-time visibility into how applications collect and share data.

Key features include:

  • Automated personal data discovery across applications
  • Third-party data sharing detection
  • Data flow mapping and tracking
  • AI-powered privacy risk detection
  • Real-time compliance monitoring

For development and privacy teams, Privado bridges the gap between software development and privacy compliance, helping prevent potential privacy mishaps and mistakes.

Privado best for:

Development teams needing automated privacy compliance scanning
Organizations wanting real-time visibility into data handling
Companies building privacy-first applications at scale

Manta Network: Privacy-first blockchain

Manta Pacific bridge

Manta Pacific bridge. Source: Manta Network

For Web3 developers looking for privacy-oriented networks to build on, Manta Network leverages zero-knowledge proofs (ZKPs) to enable privacy-preserving applications on the blockchain. Through its two main systems, developers can build applications that maintain confidentiality while preserving blockchain's transparency where needed.

Key features include:

  • Zero-knowledge proof systems allow validating transactions without revealing sensitive details of the transactions
  • Support for privacy-preserving applications
  • Two networks:
  1. Manta Pacific: L2 for ZK applications on Ethereum
  2. Manta Atlantic: ZK Layer 1 network on Polkadot

Some popular projects in Manta's ecosystem include Dmail for decentralized communication, Manta Wallet for asset management, and ZeroLend for decentralized lending.

Manta Network best for:

Web3 developers building privacy-preserving DeFi applications
Projects requiring zero-knowledge proof implementation
Teams building on Ethereum L2 or Polkadot needing privacy features

Privacy and protection: A two-way street

Privacy and security go hand in hand. While previous tools focused on controlling data collection, these next tools show how security can help strengthen privacy protection.

1Password: Securing your private information

1Password password application

1Password password application. Source: 1Password

Managing unique passwords for every account isn't just about security — it's an important privacy strategy. Making use of 1Password’s random password generator helps ensure that a breach of one service doesn't expose your private data across all your accounts.

Key features include:

  • Secure password generation and storage to prevent unauthorized access to your private accounts
  • Travel Mode protects sensitive data privacy while crossing borders
  • Watchtower monitoring for privacy breaches and compromised accounts
  • Secure Notes for storing sensitive personal documents
  • Secure sharing for families and teams without exposing data to third parties
  • Integration with biometric authentication to keep your password vaults private

The platform works across devices and browsers, making it easy to generate, store, and use super-secure, encrypted passwords and other sensitive information, no matter where you are.

1Password best for:

Individuals and families managing multiple secure passwords
Business teams requiring secure password sharing and management
Frequent travelers who need to protect sensitive data while crossing borders

Dispatch: Real-time smart contract and wallet monitoring

Dispatch Contract History view

Dispatch’s Contract History view

In Web3, privacy breaches often begin with subtle changes in smart contract behavior. Dispatch can help you catch unexpected smart contract activity by monitoring these changes in real time, ensuring your transactions and interactions remain under your control.

Key features include:

  • Real-time monitoring of smart contract events and function calls
  • Automated alerts for permission changes and proxy upgrades
  • Custom triggers for wallet and token activity monitoring
  • No-code interface for setting up monitoring
  • Multi-chain support across Ethereum, Polygon, Arbitrum, Base, and Optimism

What makes Dispatch powerful is its simplicity. Without writing complex queries, you can monitor your smart contracts and receive instant alerts through Discord, Telegram, email, or use webhooks to power your own dashboards and dApps. When critical changes occur — like unexpected permission updates or unusual contract activity — you'll know immediately.

Dispatch best for:

Web3 teams needing real-time smart contract monitoring
DeFi projects requiring multi-chain security monitoring
Non-technical users who want simple contract monitoring setup

Give Dispatch a try

Monitor your smart contracts and wallets for free with Dispatch → Start for free

Building your privacy stack

Privacy requires a multi-layered approach. Each tool we've covered plays a specific role: browsers block tracking, messaging apps protect communications, and monitoring tools watch for threats. When used together, these tools protect your personal information and online activity. Recent breaches remind us that our personal information is increasingly vulnerable. But with the right tools and protections in place, we can take back control of our privacy.

Topics: Trends

Esprezzo Team
Esprezzo Team

We're on a mission to make it easier and faster for anyone to use blockchain data to drive decisions and workflow automations. Whether you're a DeFi enthusiast, crypto trader or developer building revolutionary blockchain-based applications, we're here to help you bring your vision to reality.

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