Dark Reader for Safari vs Uno Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dark Reader for Safari
This Safari extension transforms websites into dark themes, reducing eye strain and improving readability. It offers customizable brightness, contrast, and color themes, and seamlessly integrates with system dark mode. Enjoy a comfortable browsing experience, especially in low light conditions.
- Creates dark themes for websites
- Adjustable brightness and contrast
- Multiple color theme presets
- Customizable background and text colors
- Enable/disable for specific websites
- Syncs with system dark mode
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Dark Reader is an eye-care Safari extension that enables night mode by creating dark themes for websites on the fly. It inverts bright colors to make web pages high contrast and easier to read. Dark Reader integrates seamlessly with system dark mode. Adjust brightness and contrast to match your display and ambient lighting. Enable dark mode on every web page or give websites a sepia tone. Select from multiple color theme presets or create your own by customizing background and text colors. Enable or disable Dark Reader for specific websites, automatically sync with system dark mode, or detect already dark websites and leave them unchanged. Developed by the original creators of Dark Reader. Since 2014, we continuously evolve alongside modern web technologies to deliver fast and reliable dark mode support for people sensitive to bright light. A single purchase includes access to the macOS version (Safari browser) when using the same iCloud account. Dark Reader contains no ads and does not collect user data. Enable Dark Reader in Safari preferences and disable similar extensions to prevent conflicts. Enjoy browsing!
Uno Calculator
This app offers a comprehensive suite of calculation tools, handling everything from basic arithmetic to complex unit conversions. It supports measurements for size, temperature, speed, energy, and currency, making it a versatile solution for diverse needs.
- Arithmetic calculations
- Unit conversions
- Size measurements
- Temperature conversions
- Speed calculations
- Energy calculations
- Currency exchange
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The powerful Uno Calculator receives a makeover from Uno Platform with a wide variety of features. From calculations to measurements of size, temperature, speed, energy, currency and more, the calculator is a powerful one-stop-shop for all calculation-related needs.
Screenshots
Verdict
The clearest difference is price: Uno Calculator at Free against Dark Reader for Safari's $4.99. Uno Calculator also leads on rating (4.6 vs 4.3) and review sentiment (73% vs 64%). Dark Reader for Safari's advantage is update cadence (every 2 months vs every 5 months) and chart position (#16 vs unranked). On ratings volume, ads, in-app purchases 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
Uno Calculator is free to download; Dark Reader for Safari costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Uno Calculator holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 286 and 116 respectively. Written reviews point the same way: 64% of Dark Reader for Safari's written reviews are positive against 73% of Uno Calculator's.
Dark Reader for Safari ships an update every 2 months, Uno Calculator every 5 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | Dark Reader for Safari | Uno Calculator |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.3 (286 ratings) | 4.6 (116 ratings) — better |
| Positive reviews | 64.2% of reviews | 73.2% of reviews — better |
| Number of ratings | 286 — better | 116 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #16 — better | — |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Requires iOS | 15.0 | 14.2 — better |
| Further details — not scored | ||
| Size | 4 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | Dark Reader Ltd | Uno Platform Inc. |
Customer experience
Dark Reader for Safari
Uno Calculator
User reviews
Dark Reader for Safari
From 286 App Store ratingsWhat we love
- 👍 Works well on most websites
- 🚀 Fast and efficient
- 💡 Customizable settings
- 👍 Preserves website design
- 👍 Easy to enable/disable per site
Room to improve
- 🐛 Inconsistent performance on some websites
- 🐛 Occasional rendering issues
- 🔒 Privacy concerns about data access
- 💰 Paid extension when free versions exist
- 🔋 Can slow down Safari performance
Uno Calculator
From 116 App Store ratingsWhat we love
- 💰 Completely free with no ads or in-app purchases
- 🎨 Clean, minimalist, and intuitive user interface
- 🔧 Multiple calculator modes (standard, scientific, programmer)
- 📊 Useful unit conversion features
- 📜 Helpful history and memory panes for tracking calculations
Room to improve
- ⌨️ No keyboard input support on Mac or iPad (major recurring complaint)
- 📍 Calculator buttons positioned on left side (inconvenient for right-handed users)
- 📜 History pane cannot be hidden or minimized
- ⏱️ Slower app launch time compared to stock calculator
- 🐢 Laggy performance on macOS with slow button responsiveness
Bugs and requests
Dark Reader for Safari
Reported bugs
3 issues- Extension stops working after Safari has been open for a while
- Fails to load on certain websites
- Inverts colors incorrectly on some websites
Requested features
5 requests- Per-site settings for Dynamic vs Filter modes
- Automatic dark mode based on time of day
- Ability to customize accent colors
- Support for PDF documents
- Sync settings across devices
Uno Calculator
Reported bugs
10 issues- Standard calculator mode doesn't follow order of operations (1+2*3 = 9 instead of 7)
- Buttons disappear while using on iPad
- Apple Pencil input causes buttons to blend into background
- Slow key responsiveness on macOS
- Numeric keypad input not recognized from Apple keyboard
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- History not persisting after app closure
- Text rendering issues on larger iPad displays
- Unit conversion errors (volume translated incorrectly in Chinese)
- Slow data entry on macOS Catalina
- Landscape mode layout issues
Requested features
11 requests- Keyboard input support for Mac and iPad (most requested)
- Copy and paste functionality for results and formulas
- Option to reposition calculator buttons to right side
- Ability to hide or collapse history pane
- Persistent history that saves after app closes
Show 6 moreShow fewer
- Sound/click feedback option in settings
- Donation option within the app
- Improved dark mode styling
- Bluetooth keyboard support
- Numeric keypad support for external keyboards
- Currency conversion feature restoration
In-app purchases
Dark Reader for Safari
No in-app purchases
Uno Calculator
No in-app purchases
Questions
Is Dark Reader for Safari free?
Is Uno Calculator free?
Which has better reviews, Dark Reader for Safari or Uno Calculator?
Do Dark Reader for Safari or Uno Calculator have ads?
Which is updated more often, Dark Reader for Safari or Uno Calculator?
Other comparisons
