Comparison

Unit Conversion for Safari vs Open Pi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Unit Conversion for Safari

Features
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Smart Unit Converter for Safari automatically detects measurements on web pages and converts them instantly while you browse. When reading international websites, you often see unfamiliar units such as Fahrenheit, miles, inches, pounds, or gallons. This extension detects those values directly on the page and displays the converted result next to them so you can understand measurements immediately. Unlike traditional unit converter apps, Smart Unit Converter works directly inside Safari. You do not need to copy values or search for conversions. Everything appears automatically while you browse. The extension supports bidirectional conversion between metric and imperial units. Whether a page uses Fahrenheit or Celsius, miles or kilometers, pounds or kilograms, both units are displayed so you can instantly understand the measurement. Examples 70°F (≈ 21°C) 25°C (≈ 77°F) 5 miles (≈ 8 km) 10 km (≈ 6.2 mi) 10 lb (≈ 4.5 kg) 1 gallon (≈ 3.78 L) Key Features Automatic unit detection on web pages Bidirectional conversion between metric and imperial units Supports temperature length weight and volume conversions Inline display or hover display modes Click converted values to copy Enable or disable conversion for specific websites Category control for temperature length weight and volume Fast local processing with no external communication Smart Unit Converter for Safari is designed to be lightweight, fast, and privacy friendly. All processing happens locally in your browser with no data collection. The extension supports multiple languages and automatically adapts to your system language. Perfect for reading international articles, shopping online, DIY tutorials, technical documentation, and global news.

About

Open Pi

Manage your Raspberry Pi devices remotely without cloud services. Monitor system health, control Docker, run commands, transfer files, and manage GPIO from a modern, privacy-focused interface.

Highlights
  • Real-time system monitoring
  • SSH terminal access
  • Docker container management
  • GPIO control
  • File manager
  • Wake-on-LAN Helper
  • Remote system actions
Features
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Direct, local, and private Raspberry Pi management. Open Pi lets you monitor system health, manage Docker containers, and run SSH commands on your Raspberry Pi right from your phone. No cloud servers, accounts, or subscriptions. Built for homelabs, self-hosting, IoT projects, and software development. Key Features • System Health: Real-time CPU, RAM, storage, and temperature metrics • Docker Management: View, start, stop, and restart containers • Terminal: Secure SSH command-line access over local network or VPN • File Manager: Direct file uploads and downloads • GPIO Control: Monitor and toggle pins • Auto-Discovery: Detect devices automatically on local networks • System Actions: Wake-on-LAN helper, remote reboot, and alerts Privacy • Native SSH connection with no background agents • No accounts, tracking, or telemetry • Local-first architecture with zero subscriptions • All data stays on your local network

Screenshots

Unit Conversion for Safari4 screens
Open Pi4 screens

Verdict

The call

The clearest difference is price: Open Pi at Free against Unit Conversion for Safari's $1.99. Open Pi also leads on update cadence (weekly vs every 2 months). Unit Conversion for Safari's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 18.0). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Open Pi is free to download; Unit Conversion for Safari costs $1.99 up front. Open Pi sells 2 one-off in-app purchases. Unit Conversion for Safari asks for nothing beyond the download.

UpkeepUpdate frequency

Unit Conversion for Safari ships an update every 2 months, Open Pi weekly. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
Unit Conversion for Safari versus Open Pi: the parameters behind the verdict, then further details
ParameterUnit Conversion for SafariOpen Pi
Price$1.99Free — better
Rating—4.4 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size4 MB43 MB
Age rating4+4+
DeveloperSeiya.kArtem Svitelskyi

In-app purchases

None

Unit Conversion for Safari

No in-app purchases

2 purchases

Open Pi

One-time2
  • Single (Lifetime)$5.99
  • Family (Lifetime)$12.99

Questions

Is Unit Conversion for Safari free?
Unit Conversion for Safari costs $1.99, with no in-app purchases.
Is Open Pi free?
Open Pi is free to download, with in-app purchases available.
Do Unit Conversion for Safari or Open Pi have ads?
Neither Unit Conversion for Safari nor Open Pi shows ads.
Which is updated more often, Unit Conversion for Safari or Open Pi?
Unit Conversion for Safari ships an update every 2 months, and Open Pi weekly. Most recently, Unit Conversion for Safari was updated on October 8, 2026 and Open Pi on October 11, 2026.

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