---
title: "System Design Refresher - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "System Design Refresher is a free study companion for software engineers preparing for system design interviews.   WHAT'S INSIDE  • 30+ system design articles covering distributed systems, databases, "
---

# System Design Refresher — United States

![System Design Refresher App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/c1/ee/44/c1ee44d0-dd03-5be0-3cf4-2b78aaae4a9c/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Saurabh Sharma](https://apptail.io/developer/saurabh-sharma-IMNXXb)
**Category:** Education
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.ss9.SDTool
**Store:** Apple App Store
**Country:** United States
**Version:** 1.6 (released 2026-06-11)
**Original Release:** 2026-04-07
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6760277935)
**AppTail Page:** [https://apptail.io/app/system-design-refresher-Lztz/united-states](https://apptail.io/app/system-design-refresher-Lztz/united-states)

## System Design Refresher Description
System Design Refresher is a free study companion for software engineers preparing for system design interviews.

 WHAT'S INSIDE
 • 30+ system design articles covering distributed systems, databases, caching, and more
 • Engineering blogs from top tech companies (Google, Meta, Stripe, Airbnb, and more) aggregated in one place
 • AI-powered flashcards with spaced repetition
 • Ask AI to summarize or explain any article in plain language
 • Favorites, reading progress tracking, and custom RSS feeds

FEATURES
 • Works offline — articles download for reading without internet
 • Dark mode, font customization, and text size controls
 • Face ID / Touch ID lock for privacy
 • Sign in with Google or Apple, or use as a guest with no account required

## System Design Refresher Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/db/d3/1a/dbd31a59-0639-2e6e-11cc-5ebc4917e711/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.34.56.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/7f/03/95/7f039584-f666-22c0-5f86-9714eeeb4ea7/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.32.59.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/98/2b/e2/982be20c-7f5f-9919-f99e-7ecce35b1140/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.34.14.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/59/4e/12/594e126c-79f2-6be0-458f-997568dfba4f/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.33.11.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2b/d7/a7/2bd7a79e-0d40-c6fa-bbca-94950546d361/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.34.46.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/42/ef/11/42ef1125-fbbe-dc76-00ea-5a6d57bed4ec/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.33.58.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d0/ba/56/d0ba56a9-2019-7ba0-f0a6-b3ac597c1aae/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.32.53.png/1320x2868.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/30/b8/15/30b8158d-6900-1473-1d20-e19f0913188f/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.34.37.png/1320x2868.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/64/83/a1/6483a121-cba5-8cce-10f3-c99131353003/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.33.47.png/1320x2868.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2a/e6/c7/2ae6c7c2-b455-3db1-2abe-fcca4bae2b8b/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-04-03_at_19.33.05.png/1320x2868.png)







## System Design Refresher Available In
- [India](https://apptail.io/app/system-design-refresher-Lztz/india)
- [United States](https://apptail.io/app/system-design-refresher-Lztz/united-states)
- [Uzbekistan](https://apptail.io/app/system-design-refresher-Lztz/uzbekistan)

---

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