Comparison

Nucleus vs Untap

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

Head to head
About

Nucleus

Features
Read full description

Welcome to Nucleus, the only app you'll ever need for Quotes. Our mission is to present the most elegant and simple quote app you would ever use. Why should we distract you on the app while discovering the next quote you'll fall in love with?

About

Untap

This app helps you regain control of your phone usage by blocking distracting applications during designated focus hours and setting daily limits on app usage. It offers features like timed pauses, study quizzes before app access, and progress tracking to encourage mindful digital habits.

Highlights
  • Block distracting apps during focus hours
  • Set daily app opening limits
  • Create quizzes from study notes
  • Implement timed pauses before app access
  • Track screen time and protection streaks
  • Lock settings for stricter control
Features
Read full description

Make space for studying, work and life beyond your phone. Untap helps you limit screen time, block distracting apps and choose more deliberately when to open social media. PROTECT YOUR FOCUS HOURS Choose the days and times you want to keep for studying, work or reading. Restrict selected apps during those hours. Use the available strict settings when you want a firmer boundary, and review your rules before starting. LIMIT THE REST OF YOUR DAY Set how many times you can open an app each day and how long each session can last. Lock settings to make impulsive changes harder. Combine focus hours with daily opening limits and session caps. QUIZ YOURSELF BEFORE YOU SCROLL Turn an unlock into a study check. Upload a PDF or photos of your notes, or enter a topic, to create quiz questions. Answer a question correctly before opening the selected app. Use the pause to review what you are learning rather than jump straight into a feed. READ A PAGE OR TAKE A PAUSE Choose an available reading passage before opening an app, then decide whether to continue reading or unlock. Or add a short waiting period to interrupt automatic app checking. UNDERSTAND YOUR SCREEN TIME See your daily screen time, most-used apps and protection streak. Review your habits and adjust your limits as your routine changes. FOR STUDY AND EVERYDAY FOCUS Protect revision time, keep social media breaks within a limit and make room for projects, books and offline plans. Untap provides controls for the boundaries you choose; results depend on your settings and use. GET STARTED Select the apps you want to control, authorize the required Screen Time access and set your schedule and limits. Some features require a paid plan; review the options and prices shown in the app. PRIVACY AND QUIZ GENERATION Untap uses Apple’s Screen Time API. App blocking runs on your device. If you upload study files for quizzes, those files are sent to Google’s Gemini AI to generate quiz questions. Quiz generation is separate from on-device app blocking. Privacy Policy: https://www.getuntap.com/privacy Terms: https://www.getuntap.com/terms

Screenshots

Nucleus4 screens
Untap4 screens

Verdict

The call

The clearest difference is in-app purchases: Nucleus at none against Untap's 3. Nucleus also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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. Untap sells 3 in-app purchases, starting at $2.99 per 7 days. Nucleus asks for nothing beyond the download.

UpkeepUpdate frequency

Nucleus ships an update every 9 days, Untap weekly. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Nucleus versus Untap: the parameters behind the verdict, then further details
ParameterNucleusUntap
PriceFreeFree
Rating—4.6 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size15 MB56 MB
Age rating4+4+
DeveloperYekta SariogluVishal Pawar

In-app purchases

None

Nucleus

No in-app purchases

3 purchases

Untap

Subscriptions3
  • Weekly Subscription$2.997 Days
  • Monthly Subscription$4.991 Month
  • Yearly Subscription14 Days trial$29.991 Year

Questions

Is Nucleus free?
Nucleus is free to download, with no in-app purchases.
Is Untap free?
Untap is free to download, with in-app purchases available.
Do Nucleus or Untap have ads?
Neither Nucleus nor Untap shows ads.
Which is updated more often, Nucleus or Untap?
Nucleus ships an update every 9 days, and Untap weekly. Most recently, Nucleus was updated on November 7, 2026 and Untap on November 9, 2026.

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