Comparison

Lock Dock-Widget App Launcher vs Dúo Calculator

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

Head to head
About

Lock Dock-Widget App Launcher

Instantly access your most-used tools and apps directly from your lock screen. Customize shortcuts for quick, one-tap launches to streamline your daily tasks and improve phone interaction efficiency.

Highlights
  • Instant lock screen access
  • Fully customizable shortcuts
  • Personalized app shortcuts
  • Fast and efficient performance
  • User-friendly interface
  • Seamless background operation
Read full description

Unlock a whole new level of convenience with Lock Dock! Say goodbye to the hassle of endlessly swiping and searching for your most-used tools. With Lock Dock, you can instantly access your favorite tools and shortcuts directly from your lock screen—quick, easy, and customized just for you. Why Choose Lock Dock? We understand how important it is to have fast access to the tools you use daily. Lock Dock offers you a seamless experience that lets you set up the perfect collection of shortcuts, ready to launch with just one tap. Whether you need to open your calendar, launch your camera, or quickly access your favorite social media app, Lock Dock is here to streamline your day. Key Features: Instant Access from the Lock Screen: Add your most essential tools and apps directly to your lock screen, giving you the power to launch them with a single tap. Fully Customizable: Tailor the app to suit your unique needs. Select the tools that matter most and arrange them however you like—put what you need front and center. Personalized Shortcuts: Create shortcuts to anything you use frequently, whether it's messaging apps, productivity tools, or even your smart home controls. Fast & Efficient: Lock Dock is designed for speed. You’ll love how quickly you can access your tools without navigating through multiple menus or screens. User-Friendly Interface: Simple and intuitive design lets you set up your shortcuts in seconds. The app is easy to navigate and requires minimal setup to get started. Seamless Performance: Lock Dock runs efficiently in the background, ensuring smooth performance without draining your battery. Streamline Your Day Tired of digging through your phone to find the tools and apps you need? Lock Dock helps you cut down on wasted time by providing instant access to your most-used shortcuts. Whether you’re sending a message, checking the weather, or adjusting your smart home devices, everything is just one tap away—right from your lock screen. Perfect for Any Lifestyle Lock Dock is perfect for busy professionals, multitaskers, or anyone who values efficiency. Whether you're running errands, managing tasks, or simply want quick access to your entertainment apps, Lock Dock adapts to your lifestyle. Simplicity Meets Power We’ve focused on creating an app that gives you powerful functionality in the most straightforward way possible. With Lock Dock, the days of opening multiple menus or apps just to perform a basic action are over. You’ll love the speed, simplicity, and convenience it brings to your everyday phone usage. Ready to Get Started? Download Lock Dock now and transform the way you interact with your phone. Customization, speed, and simplicity—all in one app. Unlock your phone, tap your favorite tools, and get more done, faster! Join Thousands of Happy Users! Thousands of users have already made their lives easier with Lock Dock. Don’t miss out—download today and experience the convenience of having all your essential tools just a tap away. Support & Updates We’re constantly working to improve Lock Dock and bring you new features. Have feedback or need assistance? Our support team is ready to help you make the most of your experience. Terms of Service: https://idecapps.com/terms/ Privacy Policy: https://idecapps.com/privacy/

About

Dúo Calculator

Features
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Now compatible with iPhone Duo. LiquidCalculator is now Dúo Calculator: fold your iPhone Duo and it's a basic calculator; unfold it and it becomes a full scientific calculator. On any iPhone: a basic or scientific keypad, a unit converter and your calculation history, with a precise math engine. No ads, no account and no in-app purchases. ONE CALCULATOR, TWO SCREENS • Folded: a basic calculator with big keys. In landscape, a compact scientific keypad appears (you can turn it off in Settings). • Unfolded: a 10 × 5 scientific keypad with every function in view; with the screen flat, also programmer mode and a unit converter. • Half open like a laptop, the result sits above the fold and the keypad below it. Open like a book, the keypad splits across both sides of the fold. • Fold or unfold in the middle of a calculation and your work stays put: keys slide to their new places and the new ones appear. • It also adapts to Split View on the inner display. ON YOUR IPHONE • Pick Basic or Scientific from the menu, in portrait or landscape. • Unit converter and History on every model. • iPhone SE and accessibility text sizes keep the big basic keys. HISTORY • Your last 50 calculations, newest first • Tap a result to use it again; swipe to delete one, or clear them all • On an unfolded iPhone Duo it opens in a panel that never crosses the fold A REAL SCIENTIFIC CALCULATOR • Trigonometry in degrees or radians, inverse and hyperbolic functions • ln, log10, log2 and logarithms in any base • Powers, roots of any degree, factorial, 1/x, π, e and EE notation • Parentheses, memory (mc, m+, m−, mr) and the 2nd key • Live result as you type, plus cursor editing: tap the expression to fix any point It does not include graphing, matrices or statistics. EXACT UNDER THE HOOD Basic operations use exact fractions: 0.1 + 0.2 gives 0.3 and 1 ÷ 3 × 3 gives 1. Functions such as sin, ln or e^x are computed with 60 digits of precision and the display shows up to 16. Invalid operations, such as dividing by zero or tan 90°, show a clear error instead of a wrong answer. The engine is checked against an independent reference model on hundreds of test cases. PROGRAMMER MODE (large screens, such as an unfolded iPhone Duo) • 8, 16, 32 and 64-bit integers, signed or unsigned • BIN, OCT, DEC and HEX at once, with a bit grid you can tap • AND, OR, XOR, NOR, NOT, shifts, rotations, 1's and 2's complement, mod UNIT CONVERTER • 87 units in 11 categories: length, mass, temperature, area, volume, speed, time, data, energy, pressure and angle • Swap units with one tap, pull in the calculator's value or send the result back to it • Works offline; currencies are not included YOUR WAY • Light, dark or system theme, with optional pure OLED black • Four accent colors: amber, indigo, mint and graphite • Liquid Glass design; haptics and the aurora background are optional • Copy and paste, plus hardware keyboard support • English and Spanish, with VoiceOver labels; respects Reduce Motion, Reduce Transparency and Increase Contrast PRIVATE BY DESIGN • Collects no data: no account, no ads, no analytics, no tracking • Never uses the network: the app never sends your calculations anywhere • Settings, your last calculation and your History are stored on the device (and in its backups) and removed from it with the app COMPATIBILITY • Now compatible with and optimized for iPhone Duo, on both the outer and the inner display. • Runs on any iPhone with iOS 26 or later. Programmer mode needs a large screen, such as the inner display of iPhone Duo. • iPhone only. Support and feedback: alex@nextechia.dev iPhone and iPhone Duo are trademarks of Apple Inc. This app is independent and is not affiliated with Apple.

Screenshots

Lock Dock-Widget App Launcher4 screens
Dúo Calculator3 screens

Verdict

The call

The clearest difference is price: Lock Dock-Widget App Launcher at Free against Dúo Calculator's $1.99. Lock Dock-Widget App Launcher also leads on update cadence (every 5 days vs every 6 months) and iOS requirement (18.0 vs 26.0). Dúo Calculator's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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

Lock Dock-Widget App Launcher is free to download; Dúo Calculator costs $1.99 up front. Lock Dock-Widget App Launcher sells 3 in-app purchases, starting at $4.99 per month. Dúo Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Lock Dock-Widget App Launcher ships an update every 5 days, Dúo Calculator every 6 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
Lock Dock-Widget App Launcher versus Dúo Calculator: the parameters behind the verdict, then further details
ParameterLock Dock-Widget App LauncherDúo Calculator
PriceFree — better$1.99
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 days — betterEvery 6 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.0 — better26.0
Further details — not scored
Size23 MB3 MB
Age rating4+4+
DeveloperiDec Apps S.L.Alejandro Hernandez Mitre

In-app purchases

3 purchases

Lock Dock-Widget App Launcher

Subscriptions2
  • Lock Dock PRO (Monthly)$4.991 Month
  • Lock Dock PRO (Yearly)$29.991 Year
One-time1
  • Lock Dock PRO (Lifetime)$9.99
None

Dúo Calculator

No in-app purchases

Questions

Is Lock Dock-Widget App Launcher free?
Lock Dock-Widget App Launcher is free to download, with in-app purchases available.
Is Dúo Calculator free?
Dúo Calculator costs $1.99, with no in-app purchases.
Do Lock Dock-Widget App Launcher or Dúo Calculator have ads?
Lock Dock-Widget App Launcher shows ads; Dúo Calculator does not.
Which is updated more often, Lock Dock-Widget App Launcher or Dúo Calculator?
Lock Dock-Widget App Launcher ships an update every 5 days, and Dúo Calculator every 6 months. Most recently, Lock Dock-Widget App Launcher was updated on October 27, 2026 and Dúo Calculator on October 28, 2026.

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