Architecture Benchmark
20-20-20 vs. Stretchly
Why a pure native Swift binary outperforms cross-platform Electron apps in battery life, memory footprint, and macOS system integration.
| Metric | 20-20-20 for Mac | Stretchly |
|---|---|---|
| Underlying Framework | 100% Native Swift & SwiftUI | Electron / Node.js / Chromium |
| RAM Usage | ~14 MB | ~280 MB - 450 MB |
| CPU Idle Impact | 0.0% CPU | 0.5% - 2.0% Background Wakeups |
| Binary Size on Disk | ~1.2 MB | ~180 MB |
| Battery Life Impact | Imperceptible (Zero drain) | Noticeable background draw |
| macOS Feel & Aesthetics | Native Frosted Glass & SF Symbols | Web-rendered UI |
The Problem with Electron on macOS
Stretchly is a well-known open source break reminder, but it is built on Electron. That means running a full instance of Google Chrome and Node.js in the background just to display a countdown timer every 20 minutes.
**20-20-20 for Mac** was built specifically for Mac power users who value their battery and memory. With a memory footprint of just **14MB**, you can leave 20-20-20 running 24/7 on your MacBook without sacrificing a single minute of battery life.
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Protect Your Eyes Without Sacrificing Battery Life
A lightweight, native macOS menu bar app. One-time payment of $49.99. Lifetime updates included.
Requires macOS 13+ (Ventura, Sonoma, Sequoia)
Apple Silicon & Intel Native Universal
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