Comparison

CalcGate | App Lock with Math vs Focus Lock

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

Head to head
About

CalcGate | App Lock with Math

Features
Read full description

CalcGate is a screen time control app designed for people who want to break the habit of opening distracting apps without thinking. Have you ever opened social media “just for a minute,” only to lose track of time? Do you find yourself checking your phone when you should be studying, working, or focusing? Do app limits feel too easy to ignore or turn off? CalcGate adds a simple but effective moment of friction before you can reopen restricted apps. Choose the apps or app categories you want to limit, start a lock, and CalcGate will require you to solve math challenges before access can be restored early. Unlike blockers that can be dismissed instantly, CalcGate is designed to make you pause and ask yourself: “Do I really want to open this app right now?” To unlock early, every math problem must be answered correctly. If you make a mistake, your progress resets and the challenge starts again from the beginning. This small hurdle helps interrupt automatic habits like repeatedly opening social media, video apps, games, or other distractions without thinking. CalcGate is useful for study sessions, deep work, productivity, reading, reducing late-night scrolling, managing screen time, and building healthier digital routines. Key features: ・Restrict selected apps or app categories ・Start instant locks anytime ・Create recurring daily lock schedules ・Unlock early by solving math challenges ・Customize challenge difficulty and question count ・Reset progress after incorrect answers CalcGate is not about completely avoiding your phone. It is about using your phone more intentionally. Whether you want to improve focus, study without distractions, reduce social media overuse, build better habits, or create a healthier relationship with your device, CalcGate helps you pause before you tap. Start using CalcGate today and build the habit of thinking before unlocking.

About

Focus Lock

This app helps you break phone addiction by automatically locking distracting apps when your phone is charging or the battery is low. To regain access, you must solve a math or logic puzzle, creating a small barrier to prevent mindless scrolling.

Highlights
  • Auto-lock apps when charging
  • Auto-lock apps on low battery
  • Manual focus sessions
  • Math and logic unlock challenges
  • Strict Mode with no surrender
  • Smart usage insights
  • Focus streak tracking
Features
Read full description

You pick up your phone to check the time. Somehow, 40 minutes of Instagram later, you're still on the couch. Sound familiar? Focus Lock breaks that loop — automatically. HOW IT WORKS The moment you plug in your charger, Focus Lock locks the apps that waste your time. No willpower needed. The trigger does it for you. Want back in? Solve a quick math challenge first. Your brain has to actually engage before you can scroll again. That's it. Simple. Surprisingly powerful. THREE WAYS TO LOCK Charging Lock — Plug in and apps lock automatically. Most people charge 2–3 hours a day. That's 2–3 hours you could be present. Low Battery Lock — Battery below 30%? Instead of doomscrolling on your last 10%, Focus Lock locks distractions automatically. Manual Focus Sessions — Start a 15-min, 30-min, or 1-hour session anytime. Lock your apps, set your timer, get to work. WAYS TO UNLOCK Every other app lets you tap "ignore" and keep scrolling. Focus Lock doesn't. Solve to unlock — a quick math challenge in Easy, Medium, or Hard. Easy ones take 5 seconds. Hard ones make you think. That tiny bit of friction is enough to break the reflex — and ask yourself if you actually want to open that app. Walk to unlock — don't want to think, want to move? Earn your way back in with steps instead, from as few as 10 up to 5,000. On by default, and it works even from your pocket. Strict Mode removes the give-up button on challenges entirely — solve it or stay locked. Most of the time, you won't even want to. BATTERY CARE Focus Lock also pays attention to what it's plugged into. See how healthy your daily charging habits look, and get a nudge the moment it's actually fine to unplug — usually around 80%. FOCUS INSIGHTS Focus Lock tracks your own focus sessions, locally on your device, and turns them into something useful. "You've locked in 3 times today — above your weekly average." "Most sessions start after 9PM. Worth a bedtime nudge?" "Best focus day this week: Thursday. Keep it up." Friendly nudges, not guilt trips. You decide what to do with the information. FEATURES Auto-lock apps when charger is connected. Auto-lock apps when battery drops below your threshold. Manual focus sessions (15 min, 30 min, 1 hr, or custom). Math unlock challenges in Easy, Medium, and Hard. Walk to Unlock — set any step goal. Strict Mode with no give-up option on challenges. Battery Care and unplug suggestions. Configurable safety release, so an open-ended lock never traps you for good. Smart daily suggestions based on your own focus patterns. Focus streak tracker. Weekly progress report. Your data never leaves your device. SUBSCRIPTION PRO — unlock everything. $1.99 per week or $19.99 per year (save 79% — best value). Pro includes unlimited app locks, Low Battery Lock trigger, all challenge levels and Strict Mode, full analytics dashboard, daily smart suggestions, and streak system with achievements. Subscriptions are billed through your Apple ID and auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in iPhone Settings, Apple ID, Subscriptions. PRIVACY Focus Lock uses Apple's Screen Time API (FamilyControls) to block apps. We never see which apps you use, what you type, or what you view. All data stays on your iPhone. Always. Privacy Policy: https://aptnotion.com/privacy-policy-chargelock/ Terms of Use: https://aptnotion.com/terms-conditions-chargelock/ Support: support@aptnotion.com Your phone charges every day. Your focus should be too. Focus Lock — Lock distractions. Earn your unlock.

Screenshots

CalcGate | App Lock with Math4 screens
Focus Lock4 screens

Verdict

The call

The clearest difference is in-app purchases: CalcGate | App Lock with Math at none against Focus Lock's 2. CalcGate | App Lock with Math also leads on update cadence (every 3 weeks vs every 6 weeks). Focus Lock's advantage is iOS requirement (17.6 vs 26.2). On price, 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

Both are free to download. Focus Lock sells 2 in-app purchases, starting at $2.99 per 7 days. CalcGate | App Lock with Math asks for nothing beyond the download.

UpkeepUpdate frequency

CalcGate | App Lock with Math ships an update every 3 weeks, Focus Lock every 6 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
CalcGate | App Lock with Math versus Focus Lock: the parameters behind the verdict, then further details
ParameterCalcGate | App Lock with MathFocus Lock
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.217.6 — better
Further details — not scored
Size4 MB14 MB
Age rating4+4+
DeveloperHIDEYUKI INAGAKIEfat Md. Minhaz Siddiquee

In-app purchases

None

CalcGate | App Lock with Math

No in-app purchases

2 purchases

Focus Lock

Subscriptions2
  • Weekly$2.997 Days
  • Annually$19.991 Year

Questions

Is CalcGate | App Lock with Math free?
CalcGate | App Lock with Math is free to download, with no in-app purchases.
Is Focus Lock free?
Focus Lock is free to download, with in-app purchases available.
Do CalcGate | App Lock with Math or Focus Lock have ads?
Neither CalcGate | App Lock with Math nor Focus Lock shows ads.
Which is updated more often, CalcGate | App Lock with Math or Focus Lock?
CalcGate | App Lock with Math ships an update every 3 weeks, and Focus Lock every 6 weeks. Most recently, CalcGate | App Lock with Math was updated on October 25, 2026 and Focus Lock on October 31, 2026.

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