Comparison

Nano Timekeeper vs Locked

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

Head to head
About

Nano Timekeeper

Features
Read full description

Nano Timekeeper is a free countdown app. Features: - Set intermediate checkpoints with a sound alert - Set the desired countdown in 1-minute or 30-second intervals - Swipe right or left to increase or decrease the time quickly, and tap to fine-tune - Support for Dark Mode

About

Locked

This app uses a physical NFC tag to create friction and help you break phone addiction. Set app limits and lock them until you scan the tag, encouraging focus and reducing distractions.

Highlights
  • NFC-powered physical tag app blocker
  • Deep Focus Mode with no override
  • Customizable app blocking
  • Works with Apple Screen Time API
  • Minimal interface for easy setup
  • No data collection or cloud sync
Read full description

Locked is the most effective screen time control app that pairs with a physical NFC tag to help you reduce screen time, stay focused, and stop phone addiction. We all know how it goes: you sit down to work or study, and before you know it, you’re lost in a scroll loop - Instagram, TikTok, YouTube, games, notifications, distractions. Even with screen time apps (like those expensive apps, Opal, cough), it’s easy to override the limit. Your brain knows there’s no real consequence. That’s why Locked is different. Why Locked Works: According to behavioral science, friction changes behavior. Most screen time apps are low-friction - you can override limits with a tap. But with Locked, you set app limits and then lock them with a physical NFC tag. When the tag is out of reach, so are your distractions. You can’t override it unless you scan the tag. This break in the autopilot gives your rational brain a chance to intervene and choose focus. How It Works: Choose which apps to block inside the Locked app Scan your phone to the Locked Tag Your selected apps are now locked. Leave the tag at home, in a drawer, or far away Apps stay blocked until you scan the tag again to unlock them No passwords, no sneaky bypass. Just a real-world app blocker your brain respects. Benefits: Save 1–4 hours per day from less screen time Improve focus and productivity at work or school Stop phone addiction and doomscrolling habits Be more present with friends, family, and yourself Support your mental health by reducing digital overwhelm Create intentional tech boundaries that stick Build better habits with a tool that holds you accountable Reduce stress and anxiety caused by overuse Helps with ADHD and ADD Gain back control, without deleting apps or your whole phone Features: NFC NFC-powered tag that physically locks your phone’s distracting apps Works with Apple Screen Time (no shady VPNs or tracking) Deep Focus Mode: no override without the tag Custom app blocking: choose what’s locked vs what stays usable (e.g., music, maps, messages) Simple, minimal interface designed for quick setup and long-term success No data collection, no cloud sync. Your usage stays private and secure What People Are Saying: “I’ve tried everything - Focus Mode, Opal, Screen Time — but nothing worked until Locked. The physical tag makes all the difference.” “It’s like turning your phone into a brick when you need to focus.” “I didn’t realize how often I opened apps out of habit until I used Locked. Game changer for productivity and mental clarity.” Privacy & Terms: We care about your privacy. Locked does not track your app usage or personal data. All blocking is handled locally using Apple’s Screen Time API. Privacy Policy: https://nowlocked.com/policies/privacy-policy Terms of Service: https://nowlocked.com/policies/terms-of-service

Screenshots

Nano Timekeeper2 screens
Locked4 screens

Verdict

The call

The clearest difference is update cadence: Locked at every 2 weeks against Nano Timekeeper's every 4 months. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nano Timekeeper ships an update every 4 months, Locked every 2 weeks. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

Scorecard1 real difference · 9 level
Nano Timekeeper versus Locked: the parameters behind the verdict, then further details
ParameterNano TimekeeperLocked
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhoneiPhone
Requires iOS16.416.4
Further details — not scored
Size1 MB17 MB
Age rating4+4+
DeveloperAlexandre CasinoSocialMate Pty Ltd

In-app purchases

None

Nano Timekeeper

No in-app purchases

None

Locked

No in-app purchases

Questions

Is Nano Timekeeper free?
Nano Timekeeper is free to download, with no in-app purchases.
Is Locked free?
Locked is free to download, with no in-app purchases.
Do Nano Timekeeper or Locked have ads?
Neither Nano Timekeeper nor Locked shows ads.
Which is updated more often, Nano Timekeeper or Locked?
Nano Timekeeper ships an update every 4 months, and Locked every 2 weeks. Most recently, Nano Timekeeper was updated on October 18, 2026 and Locked on October 13, 2026.

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