Comparison

Growbit vs MRI Registry Compass

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

Head to head
About

Growbit

This app offers short, engaging daily lessons to help you learn new facts and build knowledge without pressure. Transform your screen time into a productive learning habit with bite-sized content across various subjects.

Highlights
  • Bite-sized lessons
  • Learn new facts daily
  • Habit building
  • Multiple topics
  • Weekly new content
  • 5-minute lessons
Features
Currently charting
Read full description

Growbit is your way to turn screen time into something meaningful. Instead of endless scrolling, spend just a few minutes learning something new every day. No pressure, no long lessons, just short, engaging content that actually makes you feel smarter. Whether it’s history, biology, or geography, Growbit helps you build a habit of learning without overwhelming you. Each lesson takes around 5 minutes or less, so you can learn anytime, on the go, during breaks, or whenever you would normally reach for social media. Feel more productive. Feel less guilty about your screen time. And enjoy learning again. With Growbit, you can: • Explore bite-sized lessons across different topics • Learn interesting facts and build real knowledge daily • Stay consistent without effort or burnout • Discover new topics added every week Start your 3-day free trial and see how easy learning can be. -Payment will be charged to your iTunes account at confirmation of the purchase. -Subscription is auto-billed at the rate corresponding to the selected plan. -Subscription automatically renews and payment will be charged to your iTunes account unless auto-renew is turned off at least 24-hours before the end of the current period. -Subscription with a free trial period will automatically renew to a paid subscription. -Subscription can be managed by you and auto-renewal may be turned off in Settings. The cancellation will take effect in 24 hours after the last day of the current subscription period. You will be downgraded to a free service afterwards. By using Growbit - Daily Micro Learning, you agree to our Privacy Policy, Terms of Use. Privacy Policy: https://growbit.me/privacy-policy/ Terms Of Use: https://growbit.me/terms-of-use/

About

MRI Registry Compass

Prepare for your MRI registry exam with over 2,000 ARRT-style practice questions covering all major topics. Utilize various quiz modes, track your progress, and simulate exam conditions. A premium subscription unlocks the full question bank and advanced features.

Highlights
  • 2,000+ ARRT-style questions
  • Random Question mode
  • Custom Quiz mode
  • Past Errors Quiz
  • Mock Exam mode
  • Progress tracking
  • Exam countdown
Features
Read full description

MRI Registry Compass is a focused study app designed to help MRI students and technologists prepare for the MRI registry exam. Practice with 2,000+ ARRT-style questions across major MRI topics, including safety, physics, anatomy, procedures, equipment, image quality, and artifacts. Key features include: • Random Question mode for quick practice • Fast 5 for short daily review • Custom Quiz mode by category and question count • Past Errors Quiz to review missed questions • Flagged Questions for bookmarked review • Mock Exam mode for full practice sessions • Progress tracking and category performance • Exam countdown and study settings Free users can try a limited question set. Premium unlocks the full question bank, mock exams, advanced quiz modes, and full progress tracking. MRI Registry Compass is an independent study aid and is not affiliated with, endorsed by, or sponsored by ARRT® or any certifying organization. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://madeha.org/privacy-policy

Screenshots

Growbit4 screens
MRI Registry Compass4 screens

Verdict

The call

The clearest difference is review sentiment: MRI Registry Compass at 100% against Growbit's 14%. MRI Registry Compass also leads on rating (5.0 vs 3.4). Growbit's advantage is ratings volume (57 vs 3) and chart position (#148 vs unranked). 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. Growbit sells 9 in-app purchases, starting at $9.99 per month and MRI Registry Compass sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

MRI Registry Compass holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Growbit has 57 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 14% of Growbit's written reviews are positive against 100% of MRI Registry Compass's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 7 level
Growbit versus MRI Registry Compass: the parameters behind the verdict, then further details
ParameterGrowbitMRI Registry Compass
PriceFreeFree
Rating3.4 (57 ratings)5.0 (3 ratings) — better
Positive reviews13.8% of reviews100.0% of reviews — better
Number of ratings57 — better3
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#148 — better—
DevicesiPhone, iPodiPhone, iPod
Requires iOS1615.1 — better
Further details — not scored
Size255 MB45 MB
Age rating4+4+
DeveloperZemeto Ltd.MADEHA LLC

Customer experience

Growbit

All ratings54 ratings
Positive63.0%
Neutral5.6%
Negative31.5%
Written reviews29 reviews
Positive13.8%
Neutral3.4%
Negative82.8%

MRI Registry Compass

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

Growbit

Subscriptions9
  • Monthly$9.991 Month
  • Unlimited Access Weekly$9.997 Days
  • Weekly3 Days trial$9.997 Days
Show 6 more
  • Weekly3 Days trial$11.997 Days
  • Yearly$35.991 Year
  • Unlimited access for 3 months$39.993 Months
  • Unlimited Yearly Access7 Days trial$59.991 Year
  • Yearly$59.991 Year
  • Unlimited Yearly Access7 Days trial$89.991 Year
2 purchases

MRI Registry Compass

Subscriptions2
  • MRI Premium Monthly3 Days trial$24.991 Month
  • MRI Premium Annual3 Days trial$59.991 Year

Questions

Is Growbit free?
Growbit is free to download, with in-app purchases available.
Is MRI Registry Compass free?
MRI Registry Compass is free to download, with in-app purchases available.
Which has better reviews, Growbit or MRI Registry Compass?
MRI Registry Compass is rated higher. Growbit averages 3.4 out of 5 from 57 ratings, while MRI Registry Compass averages 5.0 from 3 ratings.
Do Growbit or MRI Registry Compass have ads?
Neither Growbit nor MRI Registry Compass shows ads.
Which is updated more often, Growbit or MRI Registry Compass?
Growbit ships an update monthly, and MRI Registry Compass monthly. Most recently, Growbit was updated on November 5, 2026 and MRI Registry Compass on October 31, 2026.

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