Comparison

Keep A Breast vs Mentor Breast Simulator

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

Head to head
About

Keep A Breast

This app guides users through monthly breast self-checks with step-by-step tutorials and personalized reminders. It also provides breast health resources, survivor stories, and connects users to virtual care.

Highlights
  • Step-by-step self-check tutorial
  • Monthly reminder scheduling
  • Breast health resources
  • Virtual care connection
  • Survivor stories
  • Rewards for monthly checks
Features
Read full description

The Keep A Breast App wants to help you establish your own routine and approach to the breast self-check. The app helps guide you in your self-checks as well as lets you schedule a monthly reminder - so you never miss your monthly check! The Keep A Breast app is a new app designed to further support you in your self-check journey - we’re here to be your breast bud. Step-by-step self-check tutorial featuring animated gifs Scheduling feature based on your menstrual cycle (we have tips if you don’t have one, too!) Breast health resources and information Direct connection to virtual care via Carbon Health Stories from breast cancer survivors Rewards for users who check themselves monthly In-app sharing feature With 40% of diagnosed breast cancers being self-detected, establishing what is "normal" for you is an important step to knowing your body. Knowledge is Power. ABOUT The Keep A Breast Foundation™ is a nonprofit organization with a mission to empower young people around the world with breast health education and support. 2020 marks Keep A Breast’s 20th Anniversary! Since its inception in 2000, KAB has worked with young people to remove the shame associated with breasts and breast health. Through various initiatives and programs such as breast cast art exhibitions, “Non Toxic Revolution”, "i love boobies!" campaign, and the new “Keep A Breast App”, KAB has opened up the dialog about breast cancer, and has proven to be a doorway to breast self-awareness and education. Keep A Breast has grown into the leading global youth-based breast cancer prevention organization, with global affiliates in Europe, based in France, and partners in Mexico, Zambia, Kenya, and The Democratic Republic of Congo. Constantly pushing the boundaries of the pink ribbon status quo, Keep A Breast has always encouraged young people to love their boobies, get to know their bodies, and be aware of changes.

About

Mentor Breast Simulator

Visualize different breast implant sizes and shapes in 3D augmented reality. Make informed decisions about your desired look with real-time simulations. All your images are stored securely on your phone.

Highlights
  • 3D Augmented Reality Simulation
  • Visualize implant sizes and shapes
  • Real-time visualization
  • Informed decision-making
  • Secure on-device image storage
Features
Read full description

Empower your breast augmentation journey with our 3D AR simulator. Visualize, decide, and unleash confidence! Download now. Elevate your confidence with our 3D Augmented Reality Breast Simulator app! Visualize different sizes and shapes in real-time, empowering you to make informed decisions about your desired breast augmentation look. Enjoy peace of mind with our app. Your journey is yours alone, as all your images are stored on your phone. Complete registration, download the app, and begin simulating!

Screenshots

Keep A Breast3 screens
Mentor Breast Simulator4 screens

Verdict

The call

The clearest difference is review sentiment: Keep A Breast at 83% against Mentor Breast Simulator's 38%. Keep A Breast also leads on rating (5.0 vs 3.9) and monetization model (free vs ad-supported). Mentor Breast Simulator's advantage is ratings volume (155 vs 14). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Keep A Breast holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Mentor Breast Simulator has 155 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 83% of Keep A Breast's written reviews are positive against 38% of Mentor Breast Simulator's.

UpkeepUpdate frequency

Keep A Breast ships an update every 10 days, Mentor Breast Simulator every 3 weeks. The most recent releases landed on October 16, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 4 level
Keep A Breast versus Mentor Breast Simulator: the parameters behind the verdict, then further details
ParameterKeep A BreastMentor Breast Simulator
PriceFreeFree
Rating5.0 (14 ratings) — better3.9 (155 ratings)
Positive reviews83.3% of reviews — better37.5% of reviews
Number of ratings14155 — better
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad — betteriPhone
Requires iOS16.2 — better18.0
Further details — not scored
Size45 MB790 MB
Age rating4+17+
DeveloperThe Keep A Breast FoundationArbrea Labs

Customer experience

Keep A Breast

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews24 reviews
Positive83.3%
Neutral4.2%
Negative12.5%

Mentor Breast Simulator

All ratings149 ratings
Positive73.2%
Neutral2.0%
Negative24.8%
Written reviews56 reviews
Positive37.5%
Neutral1.8%
Negative60.7%

Bugs and requests

Keep A Breast

Not enough reviews yet to summarise bugs or requests.

Mentor Breast Simulator

Reported bugs

15 issues
  • App crashes after taking photos
  • App crashes when processing simulator
  • App crashes when taking pictures
  • App crashes before taking picture
  • App crashes between 1st and 3rd picture
Show 10 more
  • App crashes immediately after snapping a picture
  • App freezes up
  • App closes and doesn't save pictures
  • App glitches and kicks user out
  • App restarts during picture setup
  • App closes while trying to set up pictures
  • App picks CCs and won't let user change
  • Camera points don't align
  • Simulator only goes up to 450cc
  • Recent update removed CC visualization

Requested features

4 requests
  • Allow users to change CC size
  • Increase CC size options
  • Allow breast lifting simulation
  • Provide more realistic sizing/CC information

In-app purchases

None

Keep A Breast

No in-app purchases

None

Mentor Breast Simulator

No in-app purchases

Questions

Is Keep A Breast free?
Keep A Breast is free to download, with no in-app purchases.
Is Mentor Breast Simulator free?
Mentor Breast Simulator is free to download, with no in-app purchases.
Which has better reviews, Keep A Breast or Mentor Breast Simulator?
Keep A Breast is rated higher. Keep A Breast averages 5.0 out of 5 from 14 ratings, while Mentor Breast Simulator averages 3.9 from 155 ratings.
Do Keep A Breast or Mentor Breast Simulator have ads?
Neither Keep A Breast nor Mentor Breast Simulator shows ads.
Which is updated more often, Keep A Breast or Mentor Breast Simulator?
Keep A Breast ships an update every 10 days, and Mentor Breast Simulator every 3 weeks. Most recently, Keep A Breast was updated on October 16, 2026 and Mentor Breast Simulator on October 21, 2026.

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