Comparison

Zeno vs Justop

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

Head to head
About

Zeno

This app links physical activity to phone usage, allowing users to earn app time by walking. It helps reduce screen time by creating a positive feedback loop where movement unlocks access to chosen applications.

Highlights
  • Steps-to-Minutes Conversion
  • App Selection
  • Morning Block Window
  • Credit Dashboard
  • Apple Health Integration
  • Privacy First
Read full description

Your steps unlock your apps. It's that simple. Free forever for early adopters! Zeno is a unique screen time app that connects your physical movement to your phone usage. Walk 1,000 steps, earn 10 minutes of app time. No complicated systems. No harsh blocking. Just a simple trade that helps you move more and scroll less. --- THE PROBLEM 5-6 hours. That's how much time you spend on your phone each day. Most of it happens on autopilot - opening Instagram in bed, scrolling TikTok between tasks, falling into YouTube rabbit holes. You've tried Screen Time limits. You've tried willpower. They don't work because they fight against your brain instead of working with it. --- A DIFFERENT APPROACH Zeno doesn't punish you for wanting to use your phone. Instead, it asks one simple question: Have you moved today? • Walk 1,000 steps → Earn 10 minutes of app time • Walk 3,000 steps → Earn 30 minutes • Walk 10,000 steps → Earn 100 minutes Your body becomes the unlock key. Every step counts toward the apps you actually want to use. --- HOW IT WORKS 1. Choose Your Apps Pick 2-3 apps that drain your time and focus. Instagram, TikTok, YouTube, X - whatever your "brain rot" apps are. 2. Set Your Window Block access during your most vulnerable hours. Morning? Evening? You decide when you need protection most. 3. Walk to Unlock Zeno reads your steps from Apple Health. As you move, you earn credits. Spend credits to unlock your apps. 4. Stay Accountable See exactly how much time you've earned versus spent. Gentle nudges help you walk more when credits run low. --- WHY ZENO IS DIFFERENT Unlike other blockers that rely on willpower alone, Zeno creates a positive feedback loop: - Want to scroll? Go for a walk first. - The walk improves your mood and focus. - By the time you've earned your time, you often don't need it. - And if you do use it, you've already done something good for yourself. This isn't about restriction. It's about earning. --- PERFECT FOR • Morning doomscrollers who reach for their phone before getting out of bed • Students and professionals who lose hours to social media • Anyone managing ADHD who needs gentle friction, not harsh rules • People who want to move more but struggle to find motivation • Anyone tired of Screen Time limits they ignore after 5 seconds --- FEATURES • Steps-to-Minutes Conversion — Simple 1,000 steps = 10 minutes formula • App Selection — Choose which apps require credits to unlock • Morning Block Window — Protect your most vulnerable hours • Credit Dashboard — See exactly what you've earned and spent • Apple Health Integration — Automatic step counting, no extra devices needed • Privacy First — All data stays on your device. No accounts required. --- THE ZENO PHILOSOPHY Named after the ancient philosopher who taught that small, consistent actions lead to wisdom, Zeno believes the same about your attention. You don't need to quit social media. You don't need extreme digital detoxes. You just need a simple trade: movement for screen time. Walk first. Then scroll. --- PRIVACY BY DESIGN We don't want your data. We want you to walk more and scroll less. No servers are storing your information. Read our full privacy policy - https://coda.io/d/_dh90kqvCMi1/Zeno-Privacy-Policy_suHlQDRA --- Download Zeno and start earning your screen time today.

About

Justop

This app helps you focus by blocking distracting applications, categories, and websites during scheduled times. Once a blocking session begins, it cannot be easily interrupted, encouraging adherence to your set schedule. It offers a vacation mode for extended breaks and is designed with privacy in mind, making no network requests.

Highlights
  • Scheduled app blocking
  • Block apps, categories, and websites
  • Uninterruptible schedules
  • Vacation mode
  • Privacy-focused design
  • One-time purchase
Read full description

Block the apps you can't put down. Justop is a screen time app blocker that hides the apps, categories and websites you choose, either during the hours you set or once you've used them enough for the day. Once a block starts, there's no snoozing it. HOW IT WORKS • Set a schedule (days + time window) or a daily time limit (an amount of time per day). • Choose the apps, categories or websites to block. • A schedule shields them for the window you set. A time limit shields them once you hit your daily amount, until the next day. NO EASY WAY OUT A running block can't be edited, turned off or deleted. If you really need back in early, the unlock session takes four hours and you have to stay on the unlock screen the whole time. Leave the app and the timer starts over. VACATION MODE Taking a real break? Vacation mode lifts every block for 24 hours, up to three times a month. It can't be ended early. PRIVATE BY DESIGN No account, no analytics, no ads, no third-party SDKs. Justop makes no network requests. iOS hands it opaque tokens, so it never learns which apps you picked. PRICING Free for 2 days. After that, a one-time purchase unlocks Justop for good. No subscription. Justop uses Apple's Screen Time frameworks. iOS always lets you turn off its Screen Time access in Settings or delete the app, which lifts every block. Requires iOS 16 or later. Justop: the app blocker, screen time limiter and focus app for people who are done negotiating with themselves.

Screenshots

Zeno4 screens
Justop4 screens

Verdict

The call

The clearest difference is in-app purchases: Zeno at none against Justop's 1. Zeno also leads on ratings volume (8 vs 2). On price, rating, 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. Justop sells 1 one-off in-app purchase. Zeno asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Zeno against 5.0 for Justop. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

Scorecard3 real differences · 7 level
Zeno versus Justop: the parameters behind the verdict, then further details
ParameterZenoJustop
PriceFreeFree
Rating5.0 (8 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings8 — better2
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhoneiPhone
Requires iOS17.616.0 — better
Further details — not scored
Size5 MB1 MB
Age rating4+4+
DeveloperKarthik Sivacharan LoganathanMicah Woodring

Customer experience

Zeno

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Justop

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Zeno

No in-app purchases

1 purchases

Justop

One-time1
  • Justop Full Access$4.99

Questions

Is Zeno free?
Zeno is free to download, with no in-app purchases.
Is Justop free?
Justop is free to download, with in-app purchases available.
Which has better reviews, Zeno or Justop?
Zeno and Justop are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.
Do Zeno or Justop have ads?
Neither Zeno nor Justop shows ads.

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