Comparison

PARI Study Connect vs ARC Habit Tracker, App Blocker

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

Head to head
About

PARI Study Connect

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The PARI Study Connect App is intended for use in clinical trials with an eFlow® Technology nebuliser in conjunction with the eTrack Controller distributed by PARI Pharma GmbH. The app can be used by study participants to document and transfer data on the inhalations performed.

About

ARC Habit Tracker, App Blocker

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Everyone has a vision. Most people scroll past it. ARC helps you stop scrolling past yours. You pick the apps that pull you in. ARC locks them until you’ve proven today’s three core quests. Then they open again. Yes, we know how that sounds: an app against too many apps. That’s exactly why ARC is happy when you close it. HOW IT WORKS You pick the apps that eat your time. ARC locks them with Apple’s Screen Time: a real lock, not a reminder you swipe away. Every task you finish earns cookies. Cookies buy you free minutes. THREE CORE QUESTS A DAY After a few questions, ARC builds your path: 180 days, three core quests every day that fit your goal. Plus your own to-dos. PROVE IT, DON’T TICK IT A checkbox is free. In ARC you show what you did: - a photo, checked by AI - the camera counts your push-ups and squats - a focus timer that holds you to it - runs from Apple Health count by themselves YOUR WOLF Your wolf grows a little every day, from pup on day 1 to day 180. Yes, he’s cute. You’re still doing the push-ups. WITH PEOPLE LIKE YOU - Weekly leagues - Friends by code or username - Challenges: kilometres, reps, focus minutes or less screen time - Chat with reporting and blocking RUNS FROM APPLE HEALTH Run with Apple Fitness, Strava, Nike or adidas. With your permission, ARC reads your running workouts from Apple Health so kilometre challenges and running tasks count automatically. ARC reads nothing else and writes nothing to Apple Health. ALSO INSIDE - Focus mode and sleep mode - Widgets and a Live Activity - For iPhone and iPad, in English and German WHO IT’S FOR For everyone with a plan who notices in the evening that three hours are gone again. Who installed five blocker apps and deleted them all after two days. Who don’t want a lecture, but a reason. Become anyone. ARC PRO ARC Pro is an auto-renewing subscription, weekly or yearly. New subscribers get a trial week at no cost. The price is shown in your local currency before you subscribe. Payment is charged to your Apple account. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can cancel anytime in your Apple account’s subscription settings. Privacy Policy: https://tryarcapp.com/privacy Terms of Use: https://tryarcapp.com/terms

Screenshots

PARI Study Connect3 screens
ARC Habit Tracker, App Blocker4 screens

Verdict

The call

The clearest difference is in-app purchases: PARI Study Connect at none against ARC Habit Tracker, App Blocker's 4. ARC Habit Tracker, App Blocker's advantage is update cadence (every 9 days vs every 5 months). On price, ads, 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. ARC Habit Tracker, App Blocker sells 4 in-app purchases, starting at $4.99 per 7 days. PARI Study Connect asks for nothing beyond the download.

UpkeepUpdate frequency

PARI Study Connect ships an update every 5 months, ARC Habit Tracker, App Blocker every 9 days. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 4 level
PARI Study Connect versus ARC Habit Tracker, App Blocker: the parameters behind the verdict, then further details
ParameterPARI Study ConnectARC Habit Tracker, App Blocker
PriceFreeFree
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.2 — better16.0
Further details — not scored
Size31 MB210 MB
Age rating4+12+
DeveloperPARI GmbH Spezialisten fuer effektive InhalationRoland Fago

In-app purchases

None

PARI Study Connect

No in-app purchases

4 purchases

ARC Habit Tracker, App Blocker

Subscriptions3
  • ARC Pro Weekly7 Days trial$4.997 Days
  • ARC Pro Yearly – Offer7 Days trial$24.991 Year
  • ARC Pro Yearly7 Days trial$59.991 Year
One-time1
  • ARC Lifetime$49.99

Questions

Is PARI Study Connect free?
PARI Study Connect is free to download, with no in-app purchases.
Is ARC Habit Tracker, App Blocker free?
ARC Habit Tracker, App Blocker is free to download, with in-app purchases available.
Do PARI Study Connect or ARC Habit Tracker, App Blocker have ads?
Neither PARI Study Connect nor ARC Habit Tracker, App Blocker shows ads.
Which is updated more often, PARI Study Connect or ARC Habit Tracker, App Blocker?
PARI Study Connect ships an update every 5 months, and ARC Habit Tracker, App Blocker every 9 days. Most recently, PARI Study Connect was updated on October 30, 2026 and ARC Habit Tracker, App Blocker on November 10, 2026.

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