Comparison

Math Shield vs Pull to Refresh

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

Head to head
About

Math Shield

Features
Read full description

Stay Focused with Math Shield Math Shield helps you reduce distractions and build better focus habits by placing a math challenge between you and your most distracting apps. Instead of mindlessly opening social media, games, or other time-wasting apps, you'll need to solve a math problem before gaining temporary access. This simple barrier helps break automatic habits and encourages intentional screen time. Key Features Block Distracting Apps: Choose the apps you want to limit and keep them locked during focus sessions. Unlock with Math Challenges: Solve math problems before accessing blocked apps. Temporary App Access: Gain limited access after successfully completing a challenge. Stay Productive: Create friction between impulses and distractions to help maintain focus. Easy Setup: Select apps, choose your preferences, and let Math Shield help you stay on track. Perfect For - Students who want to focus on studying - Professionals who need distraction-free work sessions - Anyone looking to reduce screen time - People building healthier digital habits Whether you're studying, working, reading, or spending time with family, Math Shield helps you take control of your attention—one challenge at a time. Download Math Shield and make every app unlock a conscious decision. To enjoy the full experience and to gain all the premium features, you can always purchase our Monthly, Yearly or Lifetime premium subscription pack. Math Shield will automatically charge your iTunes Account at the end of your subscription unless auto-renew is turned off at least 24 hours before the end of your current period. Subscriptions renew at the original price. You can turn off auto-renew at any time and still receive full functionality until the end of your current period, but no refund can be provided for unused portions of the subscription. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. All your previous purchases can be easily restored using the **Restore Purchase** option in the app. This will provide you access to all the premium features. You can view Math Shield Terms of Use & Privacy Policy. Terms of Use (EULA):  https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://github.com/vinothvino42/app-privacy-policy/blob/main/math-shield.md

About

Pull to Refresh

This app locks your most time-consuming applications until you complete physical exercises. Earn back minutes for your apps by doing push-ups, sit-ups, or other movements, with the camera accurately counting your reps. Your exercise data can be saved to Health.

Highlights
  • App time allowance setting
  • Exercise-based rep counting
  • Pose detection for accurate reps
  • Health app integration
  • Optional public leaderboard
  • Strict mode for enhanced blocking
Features
Read full description

Pull to refresh. Actually pull. Pick the apps that eat your day, give them an allowance, and when it runs out they lock. To get back in, you do reps. The camera counts them on your phone. HOW IT WORKS 1. Choose the apps. Instagram, TikTok, X, games — whatever you actually lose hours to. 2. Set the allowance. So many minutes a day, a few minutes an hour, or nothing at all. 3. Run out, and they shut. 4. Do a set. Push-ups, sit-ups, squats, pull-ups or jumping jacks. 5. Spend what you earned, on whichever app you were reaching for. THE COUNTING IS HONEST Reps are scored from your body's joint positions, not from your phone shaking in a pocket. A rep only counts on a full movement — down to depth and back — so half-reps score nothing, and the app tells you why instead of leaving you guessing. Shaking the phone pays exactly zero. Time is measured in real use of those apps, not on a clock. Put the phone down mid-scroll and the minutes you paid for are still there. NOTHING LEAVES YOUR PHONE Pose detection runs on the device. No video is recorded, stored or uploaded, and there is no account to make. iOS hands the app opaque tokens rather than names, so it can tell that you picked an app — never what you do inside it. IT COUNTS TWICE Finished sets can be saved to Health as workouts, so reps done here go to your Move ring and show up in Fitness with everything else. RACE SOMEONE Put your reps on a public board and chase a friend. Opt-in, under any name you like, and leaving deletes your row. PRO Free covers a whole working loop: one group of apps on a daily allowance, every exercise, rep counting, Health and the leaderboard. Forever. Pro makes the lock harder — it never makes it softer: - Strict mode. A rule you cannot switch off the moment you want to. Changing it costs a cooling-off period first, which is exactly when you would have caved. - Minutes per hour. Short check-ins instead of one long sitting. - As many rules as you like, with different limits for different apps. - Your whole history, with streaks. Money never buys screen time here. Only reps do that. Pro is a subscription, renewing until cancelled, or a one-off payment for good. Manage or cancel any time in Settings. WORTH KNOWING Blocking uses Apple's Screen Time. You will be asked to grant it on first launch, and the camera when you do your first set. Deleting the app removes every lock, whatever you have bought — this is a speed bump you chose, not a cage. Privacy Policy - https://ef03b566.pull-to-refresh.pages.dev/privacy EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Math Shield4 screens
Pull to Refresh4 screens

Verdict

The call

The clearest difference is iOS requirement: Pull to Refresh at 17.0 against Math Shield's 26.0. On price, update cadence, ads and in-app purchases 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. Math Shield sells 3 in-app purchases, starting at $3.99 per month and Pull to Refresh sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Math Shield ships an update every 2 days, Pull to Refresh every 3 days. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

Scorecard1 real difference · 9 level
Math Shield versus Pull to Refresh: the parameters behind the verdict, then further details
ParameterMath ShieldPull to Refresh
PriceFreeFree
Rating—5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 2 days — betterEvery 3 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS26.017.0 — better
Further details — not scored
Size20 MB5 MB
Age rating4+4+
DeveloperVinoth RamajeyamIvan Chernoknizhnikov

In-app purchases

3 purchases

Math Shield

Subscriptions2
  • Math Shield Pro Monthly$3.991 Month
  • Math Shield Pro Yearly3 Days trial$12.991 Year
One-time1
  • Math Shield Pro - Lifetime$19.99
2 purchases

Pull to Refresh

Subscriptions2
  • Monthly$12.991 Month
  • Yearly$44.991 Year

Questions

Is Math Shield free?
Math Shield is free to download, with in-app purchases available.
Is Pull to Refresh free?
Pull to Refresh is free to download, with in-app purchases available.
Do Math Shield or Pull to Refresh have ads?
Neither Math Shield nor Pull to Refresh shows ads.
Which is updated more often, Math Shield or Pull to Refresh?
Math Shield ships an update every 2 days, and Pull to Refresh every 3 days. Most recently, Math Shield was updated on October 7, 2026 and Pull to Refresh on October 2, 2026.

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