Meishi
Apple Contacts App
Google Contacts
Connect You
My Contacts Backup
Sync.ME
What’s My Name
ZIWO
s3-lambda
Meishi is a mobile contacts application that solves the data sovereignty problem in contact management. The platform enables users to maintain complete control over their contact information while ensuring data remains current through automatic peer-to-peer synchronization. When users update their contact information, changes automatically propagate to all connections who have been granted access, eliminating manual updates. The privacy-by-design architecture uses end-to-end encryption via the Signal Protocol for all private data transmission.
Key features: Automatic contact synchronization across user networks End-to-end encrypted P2P data transmission User-controlled access permissions with granular grant/revoke capabilities Zero-knowledge architecture - no central contact database Data update notifications Network-wide contact search for public profiles GDPR and CPRA compliant by design
The hybrid architecture combines P2P sync for private contact data with client-server infrastructure only for public search functionality. Users maintain complete visibility into who has their data and can revoke access instantly. For businesses, Meishi offers a pay-per-lead API providing always-current contact data with user-controlled consent, addressing the problem of outdated B2B data (70% obsolete within one year). The freemium model charges for utility features (backup/restore, selective sharing) at $5/month, while businesses pay $0.10 per contact per month for API access. Revenue comes exclusively from features, not data monetization.
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Meishi's answer
Meishi was born from the founders' personal frustration with the broken contact management system. As stated in their manifesto: "We have not lost control of our data, in truth we never had it and we voluntarily gave it away."
The problem started with simple business card exchanges, but evolved into:
Contact data scattered across corporate databases, social media, and the dark web
Privacy violations (Facebook-Cambridge Analytica scandal)
Massive data breaches
No control over who has your data or ability to update it
The founders realized: "He who owns the data, commands" should be updated to "Who has control of the data, commands." Their mission is to "overturn the balance of power to increase people's independence" by giving individuals—not Big Tech or governments—control over their contact information. It's described as "a mission, a crusade, a call to arms."
Meishi's answer
Meishi targets two primary segments:
Privacy-Conscious Users (B2C)
Individuals who value data sovereignty and security
People frustrated with outdated contact information
Those concerned about data breaches (64% of consumers fear them)
Freelancers & SMBs (B2B) - US Freelancers: 70M+ professionals needing current client contacts
US Small-Medium Businesses: 33M companies (1-500 employees) facing GDPR/CPRA compliance challenges
Organizations dealing with 70% obsolete B2B data after one year
The Serviceable Addressable Market (SAM) is 1.73M privacy-conscious users (2% of freelancers, 1% of SMBs).
Meishi's answer
Meishi is unique because it's the only contacts app that gives users complete data sovereignty through a privacy-by-design architecture. Unlike competitors, it combines:
Automatic peer-to-peer synchronization using end-to-end encryption (Signal Protocol)
Zero data storage or monetization - Meishi never accesses, stores, or sells user data
User-controlled data sharing - you decide who gets access and can revoke it anytime
Real-time auto-updates - when contacts change their information, it updates automatically across all connections
Meishi's answer
Meishi solves problems that no competitor addresses. With Meishi, you get always-current contacts without manual updates, complete privacy control, and protection from data breaches that have affected billions (Yahoo: 3B, Marriott: 500M, Equifax: 147.9M users).
Meishi's answer
Based on the pitch deck and manifesto:
Core Architecture:
Peer-to-peer (P2P) synchronization for private data exchange
End-to-end encryption (E2EE) via Signal Protocol
Client-server architecture for public search functionality only
Privacy-by-Design principles - no centralized data storage
Infrastructure:
AWS (servers, database, CDN)
Mobile-native development (iOS + Android)
Target: P2P sync <100ms latency
Privacy Technologies:
Inspired by Web 3.0 decentralization concepts (not blockchain)
Zero-knowledge architecture - even Meishi cannot access user data
GDPR/CPRA compliant by design
Meishi's answer
Meishi is currently pre-launch (seeking $100K pre-seed funding), so it doesn't have customers yet. However, their roadmap targets:
Beta Phase (Q1): 1000 alpha users
MVP Phase (Q2-Q3): 1.2K MAU, $300 MRR
Seed-Ready (Q4): 2K MAU, $2K MRR ($24K ARR)
Planned B2B Partnerships (Year 2):
Calendly
Notion
HubSpot
CRM tools integration
Target Customer Profile:
Freelancers managing 100+ contacts ($10/month)
Small agencies with 500+ contacts ($50/month)
Privacy-conscious professionals and SMBs needing GDPR compliance
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Connect You - Contacts app for Android using MD3
My Contacts Backup - My Contacts Backup app enables users to keep track of their contacts list to merge or delete all the duplicate contacts.
Sync.ME - Search over 1 Billion phone numbers worldwide. Identify unknown phone numbers and block unwanted calls.
What’s My Name - What’s My Name is a contact manager app that allows you to collect images of people from multiple places and gives you a list of people to match with your contacts.
