Comparison

Square Root Calculator vs Focus

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

Head to head
About

Square Root Calculator

Features
Read full description

The iOS Square Root Calculator App will solve all of your square root math problems! This app is uniquely built to add square roots, subtract square roots, multiply square roots, and divide square roots. Each math problem will give you the answer in two forms: the simplest radical form and the decimal form. Of course, the app can also calculate the square root of any number. As a bonus, we have even included a tool that can simplify square roots. With so many tools in one place, the Square Root Calculator is the only square root app you will ever need! The app does not require an Internet connection, so you can use it anytime and anywhere. The goal was to make the app intuitive, clutter-free, fast to operate, and easy to use. We hope that the Square Root Calculator App will become one of your favorite math apps.

About

Focus

This app offers a peaceful approach to focus and productivity. It uses a charming fishing cat companion and engaging mini-games to make focused time feel rewarding. Block distractions, track your progress, and build healthy habits with flexible focus modes and ambient sounds.

Highlights
  • Fishing cat companion
  • Gamified focus sessions with fish collection
  • Distraction blocker
  • Pomodoro and stopwatch modes
  • Ambient sounds and music
  • Focus plans and routines
  • Screen Time API integration
Read full description

Take a little half day for yourself. Life doesn’t always have to be a sprint. Little Halfday is a cozy focus and productivity app designed to help you step away from distractions, settle into the moment, and make focused time feel more peaceful. Put down the endless scrolling. Sit by the lake, listen to the water, and let a little fishing cat keep you company while you work, study, read, exercise, or simply slow down. Here, focus isn’t a battle. It’s a small, quiet ritual you can come back to every day. YOUR LITTLE FOCUS COMPANION Start a focus session and your tiny fishing cat settles in beside you. No pressure, no complicated setup—just a calm companion while you spend time on what matters. Whether you’re studying, working on a project, reading, or fighting procrastination, Little Halfday gives you a distraction-free space to get started. FOCUS. FISH. COLLECT. Every focus session brings a little adventure. Spend focused time by the water to catch fish and discover marine creatures such as starfish, jellyfish, and hermit crabs. Keep focusing to unlock new fishing spots, expand your collection, and discover fun facts along the way. Your focus time becomes more than a number—it becomes a little world you build, one session at a time. THE FOCUS EXPERIENCE Flexible Focus Modes • Pomodoro timer for structured focus sessions • Stopwatch count-up mode for flexible, open-ended work Distraction Blocker Block distracting apps such as Instagram, TikTok, Discord, and more while you focus. Pause & Resume Pause when life interrupts, then come back without losing your rhythm. Music & Ambient Sounds Create a calm focus atmosphere with built-in music and relaxing ambient sounds. Rewarding Progress Complete a session—or finish early—and continue making progress toward your collection. TURN FOCUS INTO A ROUTINE Real change rarely comes from one huge burst of productivity. It comes from small habits repeated day after day. Create Focus Plans and routines for: • Deep Work • Study & Reading • Workout • Meditation • Yoga • Bedtime Wind-down • Any activity you want to make a habit Create different schedules for weekdays and weekends. With Scheduled Start, set your routine once and automatically start your focus session at the same time each day. Less planning. Less phone checking. More time for what matters. QUICK START Sometimes you don’t need another productivity system. You just need to start. Use Quick Start cards for Work, Read & Study, Workout, Yoga, and Bedtime. One tap and you’re ready to focus. UNDERSTAND WHERE YOUR TIME GOES Little Halfday uses Apple’s Screen Time API to help you understand and manage device usage. Track: • Daily focus duration • Completed sessions • Focus check-in history • Phone usage trends • Distracting app usage patterns • Progress in time management and habits A DIFFERENT KIND OF PRODUCTIVITY APP Little Halfday isn’t about squeezing every task into your day. It’s about making room for focused time. A little time to work. A little time to study. A little time to read. A little time to move. A little time to simply be. When the world gets noisy, there’s always a quiet lake, a fishing cat, and one more little catch waiting for you. SIDE EFFECTS MAY INCLUDE More focused minutes. Less mindless scrolling. Better daily routines. A surprising amount of knowledge about fish. And the occasional thought: “Just one more catch.” WHY LITTLE HALFDAY? Because you don’t always need a full reset. Sometimes, you just need a little half day—a small pocket of time that belongs entirely to you. Little Halfday — your little moment of calm. CONTACT support@xiaobanri.com Privacy Policy: https://xiaobanri.com/CozyHalfDayPrivacyPolicy Terms of Service: https://xiaobanri.com/CozyHalfDayTermsOfService

Screenshots

Square Root Calculator4 screens
Focus4 screens

Verdict

The call

The clearest difference is price: Focus at Free against Square Root Calculator's $0.99. Square Root Calculator's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On ads 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

Focus is free to download; Square Root Calculator costs $0.99 up front. Focus sells 3 in-app purchases, starting at $3.99 per month. Square Root Calculator asks for nothing beyond the download.

Scorecard4 real differences · 5 level
Square Root Calculator versus Focus: the parameters behind the verdict, then further details
ParameterSquare Root CalculatorFocus
Price$0.99Free — better
Rating—4.5 (2 ratings) — better
Number of ratings—2 — better
Update frequency—Every 10 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.1 — better16.0
Further details — not scored
Size1 MB76 MB
Age rating4+12+
DeveloperH ValeurDRAMICRO TECHNOLOGY LIMITED

In-app purchases

None

Square Root Calculator

No in-app purchases

3 purchases

Focus

Subscriptions2
  • PRO · 月订阅$3.991 Month
  • PRO · Yearly7 Days trial$18.991 Year
One-time1
  • PRO · 终身$33.99

Questions

Is Square Root Calculator free?
Square Root Calculator costs $0.99, with no in-app purchases.
Is Focus free?
Focus is free to download, with in-app purchases available.
Do Square Root Calculator or Focus have ads?
Neither Square Root Calculator nor Focus shows ads.

Other comparisons