Comparison

Stay in the Blue vs Mypromille

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

Head to head
About

Stay in the Blue

This app helps users monitor and predict their blood alcohol content (BAC) to encourage lower-risk drinking habits. It tracks standard drinks, provides prevention strategies, and alerts users when they reach legally impaired levels. Users can save sessions to visualize their drinking patterns over time.

Highlights
  • BAC tracking and prediction
  • Standard drink measurement
  • Prevention strategies
  • Legal impairment alerts
  • University policy information
  • Lower-risk drinking tips
  • Transportation options
  • Session saving and visualization
Features
Read full description

The Stay in the Blue app aims to help students (and other community members) keep their drinking at lower risk levels. The Stay in the Blue campaign encourages those who drink to stay at a .06 BAC (blood alcohol content) or below, and non-drinkers are always in the blue. It includes standard size drink options available at establishments or private events. This also encourages mindful measurement of standard drinks. It allows individuals to track their BAC in real time or get a snapshot by planning ahead, provides prevention strategies, alerts them at .08 BAC (legally drunk level) or above, has University of Michigan policy information, lower risk drinking tips, and transportation options. At the end of a drinking session, it gives a total number of standard drinks, showing app users if they are in the blue (preferred), maize, orange, or red. It will also allow them to save these sessions so they can have a visual representation of how they are doing over time. The same data can be saved from the "plan ahead" feature.

About

Mypromille

Features
Read full description

MyPromille offers a comprehensive way to monitor and understand your alcohol consumption. It's a user-friendly platform for logging and reflecting on your drinking habits, providing valuable insights into your relationship with alcohol. Features of MyPromille: Drink Logging: Record your intake of different alcoholic beverages, including beers, wines, and cocktails. This helps in maintaining a clear record of your alcohol consumption. Consumption Insights: Gain insights into your drinking trends. MyPromille's analytics help you recognise patterns and make informed decisions about your alcohol consumption. Personal Goals and Limits: Set personal objectives regarding your drinking habits. The app helps you track your progress and stay mindful of your goals. Extensive Drink Database: Integrated with Untappd, MyPromille allows you to explore a wide range of beer types and labels. This feature enriches your drinking experience by providing detailed information about various beverages. Comparative Analysis: Compare your drinking habits with others in the MyPromille community. This feature encourages a shared journey towards mindful drinking. Customisable Measurement Units: Choose your preferred units (cl, ml, oz) for recording drink volumes, tailoring the app to your comfort. Educational Estimations: MyPromille includes an educational feature that estimates the number of Standard Drinks (SD) consumed based on various factors. It is important to note that this estimation is for educational purposes only and should not be used to make decisions about driving or other activities that require full sobriety. The app is not a substitute for legal advice, or other formal assessments of alcohol levels. User Responsibility: We emphasise the importance of responsible drinking and personal accountability. MyPromille is a tool for awareness and self-reflection, not for legal or medical determination. Decisions based on the app's use are the sole responsibility of the user. Privacy: https://landing.mypromille.com/privacy Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stay in the Blue4 screens
Mypromille4 screens

Verdict

The call

The clearest difference is in-app purchases: Stay in the Blue at none against Mypromille's 2. Stay in the Blue also leads on ads (none vs shown). Mypromille's advantage is update cadence (every 2 weeks vs every 22 months) and device support (3 vs 1). On price 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. Mypromille sells 2 in-app purchases, starting at $1.99 per month. Stay in the Blue asks for nothing beyond the download.

UpkeepUpdate frequency

Stay in the Blue ships an update every 22 months, Mypromille every 2 weeks. The most recent releases landed on June 3, 2026 and September 11, 2026 respectively.

Scorecard4 real differences · 6 level
Stay in the Blue versus Mypromille: the parameters behind the verdict, then further details
ParameterStay in the BlueMypromille
PriceFreeFree
Rating4.0 (13 ratings) — better
Positive reviews86.4% of reviews
Number of ratings13 — better
Update frequencyEvery 22 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size15 MB87 MB
Age rating17+17+
DeveloperThe University of MichiganBreesa IT

In-app purchases

None

Stay in the Blue

No in-app purchases

2 purchases

Mypromille

Subscriptions2
  • Premium account$1.991 Month
  • Premium account$14.991 Year

Questions

Is Stay in the Blue free?
Stay in the Blue is free to download, with no in-app purchases.
Is Mypromille free?
Mypromille is free to download, with in-app purchases available.
Do Stay in the Blue or Mypromille have ads?
Mypromille shows ads; Stay in the Blue does not.
Which is updated more often, Stay in the Blue or Mypromille?
Stay in the Blue ships an update every 22 months, and Mypromille every 2 weeks. Most recently, Stay in the Blue was updated on June 3, 2026 and Mypromille on September 11, 2026.

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