Comparison

i vs AA Big Book e

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

Head to head
About

i

This app connects to a Bluetooth breathalyzer to manage and share test results. It features a self-diagnosis system for sensor quality checks and allows users to verify tests with a photo. Results can be shared via SMS, SNS, and email.

Highlights
  • Bluetooth connectivity with breathalyzer
  • Data management and sharing
  • Self Diagnosis System (SDS) for sensor quality
  • Camera mode for test verification
  • Share results via SMS, SNS, and email
  • Location information sharing
Features
Read full description

Mobile application iSOBER is the most advanced breathalyzer application in the world It is connectable with breathalyzer via Bluetooth BLE function, so possible to manage a data and share by SMS, SNS and e-mail. The enhanced sensor quality check function “Self Diagnosis System (SDS)” on an app. will verify the quality of breathalyzer’s sensor and will make sure the accurate and reliable test result Key Features -Self Diagnosis System (SDS) Whenever using AL8800BT under pairing mode, Sensor quality will be checked and will give a message on an iSOBER App. -Camera mode ON/OFF Verify your actual testing by the picture of subject’s face -Sharing result, location information by SNS,SMS and e-mail With your friends and family

About

AA Big Book e

This app provides a digital version of the AA Big Book, allowing users to read, listen to the audio version, and take notes. It features highlighting, bookmarking, search functionality, and a sobriety calculator to support recovery.

Highlights
  • Highlight and color-code text
  • Take notes and reflections
  • Bookmark and quick access
  • Powerful search functionality
  • Full text of the Big Book
  • Audio playback
  • Sobriety calculator
Features
Read full description

Introducing the AA Big Book app, your comprehensive companion for recovery! This powerful tool provides a wealth of features to enhance your sobriety journey. Dive into the depths of the Big Book with ease and convenience, and experience sobriety like never before. • Highlight and Color-Code: Customize your reading experience by highlighting important passages and color-coding them for easy reference. Mark significant sections and make them stand out in vibrant hues. • Take Notes: Capture your thoughts, insights, and personal reflections as you delve into the Big Book. Jot down your own interpretations, lessons learned, and meaningful quotes to revisit later. • Bookmark and Quick Access: Never lose your place again! Bookmark pages to effortlessly return to specific passages or chapters. Access your favorite sections instantly, ensuring you stay connected to the wisdom of the Big Book. • Powerful Search Functionality: Seamlessly navigate the Big Book's vast content with our comprehensive search feature. Find specific keywords, phrases, or topics to explore relevant information quickly and efficiently. • 164 Pages and More: Access the complete text of the AA Big Book, spanning 164 pages, and beyond. Immerse yourself in the rich teachings and inspiring stories that have transformed countless lives. • Meeting Readings and Literature: Explore a collection of meeting readings and additional literature to deepen your understanding and broaden your perspective on recovery. Enhance your knowledge with supplementary material that complements the Big Book. • Audio Format: Listen to the Big Book on the go with our integrated audio feature. Immerse yourself in the stories and teachings, and let the powerful messages resonate with you wherever you are. • Sobriety Calculator: Keep track of your progress with a basic sobriety calculator. Celebrate your milestones and see your sober days accumulate, reminding you of the positive changes you've made. • Daily Reflections: Stay inspired with a direct link to the Daily Reflections, a valuable resource for daily meditation and contemplation. Gain fresh insights and renewed motivation with each passing day. Embark on your recovery journey armed with the AA Big Book app, a valuable companion that puts the power of sobriety at your fingertips. Let the wisdom of the Big Book guide you towards a life of fulfilment, serenity, and lasting sobriety. Subscription pricing and terms • AA Big Book eReader + Audio offers an auto-renewing annual subscription at $29.99/year a quarterly auto-renewing subscription at $15.99 or a monthly auto-renewing subscription at $4.99 to provide you with unlimited & ad-free access to the app features while you maintain an active subscription. • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • The account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms of Use- https://aabigbook.app/terms.php Privacy Policy- https://aabigbook.app/privacy.php This app is not affiliated to, sponsored by or endorsed by Alcoholics Anonymous, AAWS or any other 12 Step fellowship. A.A. & Alcoholics Anonymous are trademarks of A.A.W.S. and are only used in the app on an as-is basis from the public domain book "Alcoholics Anonymous" Please rate our app. For support, contact us through the app or email us directly ibyteapps@gmail.com

Screenshots

i4 screens
AA Big Book e4 screens

Verdict

The call

The clearest difference is review sentiment: i at 67% against AA Big Book e's 0%. i also leads on in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). AA Big Book e's advantage is rating (4.5 vs 3.7) and update cadence (weekly vs every 3 weeks). On price, 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. AA Big Book e sells 3 in-app purchases, starting at $4.99 per month. i asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AA Big Book e holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: AA Big Book e has 20 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 67% of i's written reviews are positive against 0% of AA Big Book e's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

i ships an update every 3 weeks, AA Big Book e weekly. Both last shipped on September 17, 2026.

Scorecard7 real differences · 3 level
i versus AA Big Book e: the parameters behind the verdict, then further details
ParameteriAA Big Book e
PriceFreeFree
Rating3.7 (3 ratings)4.5 (20 ratings) — better
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings320 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size88 MB33 MB
Age rating4+17+
DeveloperSENTECH KOREA CORPTushar Bhagat

Customer experience

i

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

AA Big Book e

All ratings20 ratings
Positive85.0%
Neutral10.0%
Negative5.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

i

No in-app purchases

3 purchases

AA Big Book e

Subscriptions3
  • Monthly Subscription7 Days trial$4.991 Month
  • Quarterly Subscription7 Days trial$9.993 Months
  • Annual Subscription7 Days trial$29.991 Year

Questions

Is i free?
i is free to download, with no in-app purchases.
Is AA Big Book e free?
AA Big Book e is free to download, with in-app purchases available.
Which has better reviews, i or AA Big Book e?
AA Big Book e is rated higher. i averages 3.7 out of 5 from 3 ratings, while AA Big Book e averages 4.5 from 20 ratings.
Do i or AA Big Book e have ads?
Neither i nor AA Big Book e shows ads.
Which is updated more often, i or AA Big Book e?
i ships an update every 3 weeks, and AA Big Book e weekly. Most recently, i was updated on September 17, 2026 and AA Big Book e on September 17, 2026.

Other comparisons