Comparison

Sumi vs Superhappy Screen Time Blocker

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

Head to head
About

Sumi

This app helps you reduce phone usage by setting timers for breaks. It alerts you if you touch or move your device during the break, aiming to boost productivity and mental well-being.

Highlights
  • Timed phone breaks
  • Movement alerts
  • Productivity enhancement
  • Mental health improvement
  • Simple interface
Features
Read full description

The most beautiful thing an app can do is get out of your way. Sumi sits quietly on cream paper, holds your attention for an hour, and asks for nothing back. Set a length. Put your phone face down. Pick it up before the time is done and the session breaks — not as a punishment, but as a commitment kept. No ads. No notifications. No streaks-as-slot-machines. No weekly subscription trap. Just deep work, and the quiet record of the hours you've given it. — THE RITUAL — Set an intention and a length. Put the phone down. Sumi keeps watch: lift it, or leave the app, and the session ends. When the time is held, the line completes, your lifetime hours grow, and the session is logged. Silent while you work. Quietly rewarding when you finish. — A CALM LEDGER, NOT A GAME — The number that only goes up: your lifetime hours focused. A streak, if you want one. A week that fills, a line that climbs. No characters to feed, no points, no dark patterns. Progress you can feel, with nothing engineered to hook you. — MADE FOR DEEP-WORK PEOPLE — For writers, developers, designers, students of a craft — anyone who already romanticizes focus and resents apps built to fracture it. Graphite and cream. Monospace. Paper grain. A single calligraphic mark. — PAY ONCE — Your focus shouldn't be a recurring charge. Sumi is free to use, with an optional one-time Lifetime unlock (or a subscription, if you prefer) for custom lengths, full history and trends, themes, and session intentions. Put the phone down. Pick the work up. ——— Privacy Policy: https://dayonefoundry.com/sumi/privacy Terms of Use (EULA): https://dayonefoundry.com/sumi/terms

About

Superhappy Screen Time Blocker

This app uses AI and mindfulness techniques to help you reduce screen time. It offers features like app blocking, intentional conversations with an AI coach, and time limits to promote digital detox and focus.

Highlights
  • AI coach for mindful app unlocking
  • Block distracting apps and websites
  • Set time limits with automatic lockout
  • Digital detox and dopamine reset
  • Customizable app blocking sessions
  • Track screen time limits and streaks
Read full description

Superhappy combines the power of AI and mindfulness to help you reduce your screen time. Whether you need a cold turkey blocker for social media or a dopamine detox tool to reclaim your time, you're at the right place. Here’s how it works: - Block distracting apps and embrace a digital detox. - Use intentional conversations with your AI coach to unlock apps mindfully. - Set a time limit, and let your coach lock you out when time’s up. - Soon, your mind will be rewired, and you'll find yourself saying "lock me out" in no time! - Stay under your daily limits and keep a streak going. - Block different apps at different times of the day with Sessions. Superhappy is more than an app blocker tool — it’s your partner for building self control and learning to limit screen time. Our users have transformed their screentime, switching from aimless scrolling to purposeful focus. It’s like having a dumb phone or focus lock when you need it, but smarter. Premium subscription required for some features to support the Superhappy team. Ready to focus? Download Superhappy now and see improvements today. Terms, Privacy, and Conditions: Terms: https://www.superhappy.ai/terms-of-service or https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://www.superhappy.ai/privacy

Screenshots

Sumi4 screens
Superhappy Screen Time Blocker4 screens

Verdict

The call

The clearest difference is review sentiment: Superhappy Screen Time Blocker at 60% against Sumi's 0%. Superhappy Screen Time Blocker also leads on rating (4.6 vs 3.0) and ratings volume (282 vs 2). Sumi's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement 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. Sumi sells 3 in-app purchases, starting at $5.99 per month and Superhappy Screen Time Blocker sells 10 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Superhappy Screen Time Blocker holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Superhappy Screen Time Blocker has 282 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Sumi's written reviews are positive against 60% of Superhappy Screen Time Blocker's.

UpkeepUpdate frequency

Sumi ships an update every 5 days, Superhappy Screen Time Blocker fortnightly. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
Sumi versus Superhappy Screen Time Blocker: the parameters behind the verdict, then further details
ParameterSumiSuperhappy Screen Time Blocker
PriceFreeFree
Rating3.0 (2 ratings)4.6 (282 ratings) — better
Positive reviews0.0% of reviews59.6% of reviews — better
Number of ratings2282 — better
Update frequencyEvery 5 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.016.0
Further details — not scored
Size10 MB43 MB
Age rating4+4+
DeveloperDavid ParkRazzed, LLC

Customer experience

Sumi

All ratings2 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Superhappy Screen Time Blocker

All ratings266 ratings
Positive91.0%
Neutral2.3%
Negative6.8%
Written reviews47 reviews
Positive59.6%
Neutral8.5%
Negative31.9%

Bugs and requests

Sumi

Not enough reviews yet to summarise bugs or requests.

Superhappy Screen Time Blocker

Reported bugs

7 issues
  • App freezes when attempting to unlock
  • Blocking stops working if app not opened daily
  • AI agent fails and crashes
  • Cannot add multiple blocks with paid account
  • Automatic blocking feature malfunctions
Show 2 more
  • Inconsistent app functionality
  • Premium features locked after reinstall

Requested features

8 requests
  • Background blocking without daily app check-in
  • Multiple app blocking in free version
  • Mac/desktop version support
  • Revert changes option for AI customization
  • Conditional blocking (e.g., chess app frustration management)
Show 3 more
  • Stop asking for feedback after every conversation
  • Free tier with basic features
  • Undo/rollback functionality for AI modifications

In-app purchases

3 purchases

Sumi

Subscriptions2
  • Sumi Pro Monthly$5.991 Month
  • Sumi Pro Annual7 Days trial$24.991 Year
One-time1
  • Sumi Pro Lifetime$49.99
10 purchases

Superhappy Screen Time Blocker

Subscriptions10
  • Superhappy Pro Monthly3 Days trial$14.991 Month
  • Superhappy Pro Monthly$14.991 Month
  • Superhappy Pro Monthly7 Days trial$14.991 Month
Show 7 more
  • Superhappy Pro Monthly7 Days trial$19.991 Month
  • Superhappy Pro Annual$49.991 Year
  • Superhappy Pro Annual3 Days trial$59.991 Year
  • Superhappy Pro Annual3 Days trial$74.991 Year
  • Superhappy Pro Annual$74.991 Year
  • Superhappy Pro Annual7 Days trial$74.991 Year
  • Superhappy Pro Annual7 Days trial$99.991 Year

Questions

Is Sumi free?
Sumi is free to download, with in-app purchases available.
Is Superhappy Screen Time Blocker free?
Superhappy Screen Time Blocker is free to download, with in-app purchases available.
Which has better reviews, Sumi or Superhappy Screen Time Blocker?
Superhappy Screen Time Blocker is rated higher. Sumi averages 3.0 out of 5 from 2 ratings, while Superhappy Screen Time Blocker averages 4.6 from 282 ratings.
Do Sumi or Superhappy Screen Time Blocker have ads?
Superhappy Screen Time Blocker shows ads; Sumi does not.
Which is updated more often, Sumi or Superhappy Screen Time Blocker?
Sumi ships an update every 5 days, and Superhappy Screen Time Blocker fortnightly. Most recently, Sumi was updated on October 7, 2026 and Superhappy Screen Time Blocker on October 22, 2026.

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