Item
¥22CNY
App information
- Version
- 1.0
- Download size
- 796.06KB
- First released
- 2026-05-22
- Developer
- SAMBASEVAM SHANMUGAM
- Bundle ID
- sam.sysdesigncalc
- Category
- Developer Tools (4,119)
- Developer website
- system-design-calculator.com
Screenshots
Screenshots come from the App Store listing. They are shown at full aspect ratio, never cropped. Click to enlarge.
In-App Purchases 1 items · USD
About
From the App Store SourceSystem Design Calculator helps engineers make fast back-of-the-envelope estimates for architecture planning and interviews. Use focused calculators for common system design questions: - Users and traffic: convert daily active users into average and peak QPS. - Storage: estimate retention, replication, and index overhead. - Bandwidth: calculate ingress, egress, and monthly transfer. - Throughput and concurrency: apply Little's Law to request load. - Cache sizing: estimate hot working sets for Redis or Memcached. - RAM per server: size memory for sessions and connection state. - Media streaming: estimate bandwidth and storage for audio and video services. - AI inference: estimate GPU memory and throughput requirements. - WebSocket and real-time systems: estimate fan-out, connection memory, and server count. The app supports shorthand numeric input such as 10k, 1.5m, and 2B, includes compact and full-size layouts, and keeps calculations local on your Mac.
FAQFAQPage
Who made it?
The developer is SAMBASEVAM SHANMUGAM, and the app identifier is sam.sysdesigncalc.
When was it first released?
It was first released on 2026-05-22, according to our own database record.
Every number in these answers comes from the data shown above on this page.