Documentation

Later Metric is a privacy-focused analytics service for Instagram messaging data.

How It Works

The service processes Instagram ZIP export files entirely locally on your device. This means:

- Your Instagram data never leaves your device

- No messages, photos, or personal content are transmitted

- Processing happens in your browser using client-side JavaScript

Server Usage

Our servers are only used for:

- User authentication (email/login)

- Storing premium subscription status

- Processing payments through Stripe

Privacy First

We designed Later Metric with privacy as the core principle. Your messaging data is yours alone.

Later Metric works with Instagram's standard data export format.

Export Structure

Instagram exports come as ZIP files containing:

- JSON files with message data

- Media files (photos, videos)

- Metadata files

Supported Data Types

- Direct messages (DMs)

- Group messages

- Message reactions

- Media attachments

- Timestamps and metadata

Processing

The ZIP file is extracted and parsed entirely in your browser. No data is sent to our servers during analysis.

Later Metric provides comprehensive analytics for your Instagram messaging data.

Free Features

- Basic message statistics

- Conversation overview

- Total message count

- Activity timeline

Premium Features

- Top 10 conversations by message count

- Most active people analysis

- Longest messaging streaks

- Detailed activity charts and visualizations

- Message type breakdown (text, media, reactions)

- Monthly activity trends

- Advanced filtering and sorting

Premium Access

Premium is available as a one-time lifetime purchase for 2.99 €.

Understanding your analytics and what they mean.

Message Statistics

- Total messages sent and received

- Average messages per conversation

- Most active time periods

Conversation Analysis

- Conversation participants

- Message distribution

- Activity patterns

Activity Trends

- Daily, weekly, and monthly activity

- Peak usage times

- Engagement patterns

Streaks

- Longest consecutive days of messaging

- Active conversation periods

- Communication frequency

Security and privacy are fundamental to Later Metric.

Data Processing

- All Instagram data processing happens locally

- No data transmission to servers

- Client-side only processing

Authentication

- Secure email-based authentication

- OAuth support for social login

- Session management

Payment Security

- Stripe handles all payment processing

- We never see or store credit card information

- PCI-compliant payment processing

Data Storage

- Only email and premium status stored

- No Instagram data stored

- GDPR compliant

Technical information for developers and advanced users.

Technology Stack

- Next.js for the web application

- Client-side JavaScript for data processing

- Supabase for authentication and database

- Stripe for payment processing

Browser Requirements

- Modern browser with JavaScript enabled

- Support for File API and ZIP extraction

- Sufficient memory for large files

Performance

- Processing happens entirely client-side

- No server load for data analysis

- Fast local processing

Limitations

- Processing speed depends on device performance

- Large ZIP files may take time to process

- Browser memory limits apply