Comparison

Blueair vs Holy Deck

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

Head to head
About

Blueair

Monitor and control your indoor air quality with real-time tracking and intelligent device management. Gain insights into your environment and take effortless action for healthier living, whether you're at home or away.

Highlights
  • Real-time air quality tracking
  • Seamless device controls
  • Intelligent adaptive features
  • Remote management
  • Insightful data and graphs
Features
Read full description

The Blueair app transforms how you care for your indoor environment with real-time air quality tracking and seamless device controls. With over 30 years of air care innovation and expertise, our products and app give you insight and control of your air to help you manage it effectively. Whether you are home or away, take effortless action with intelligent features that adapt to your space.

About

Holy Deck

Engage in daily spiritual reflection with illustrated cards inspired by Jesus' life and teachings. Draw a card, read its reflection, and add personal journal entries to track your journey. This privacy-focused app keeps all your data local and secure.

Highlights
  • Daily card draw
  • Illustrated sacred story cards
  • Reflection text and keywords
  • Personal journal entries
  • Journal history by date
  • Card collection board
  • Optional iCloud sync
Features
Read full description

Holy Deck is a quiet daily reflection app built around illustrated cards inspired by the life, teachings, miracles, parables, and encounters of Jesus. Each day, draw one card. Read its reflection, explore its themes and keywords, and add your own journal entry. Over time, your drawn cards fill a progression board, creating a visible record of your journey through the deck. Holy Deck is designed for slow, intentional use: one card per day, one moment of reflection, one step forward. **Your reflections are your own. Holy Deck is a privacy-focused app designed with zero tracking, zero data collection, and absolutely no external data storage. Every journal entry you write stays strictly local and private on your device. Your spiritual journey is deeply personal, and your data remains entirely in your hands.** Features include: • Daily card draw reset at midnight • Illustrated sacred story cards • Reflection text and keywords for each card • Personal journal entries • Journal history by date • A collection board that fills as you draw cards • Completed game summaries that reveal the arc of your journey • Optional iCloud sync when available • Light, dark, and system appearance settings Holy Deck is not a Bible replacement or formal devotional program. It is a contemplative companion: a way to pause, notice patterns, and let the stories speak across time.

Screenshots

Blueair4 screens
Holy Deck4 screens

Verdict

The call

The clearest difference is update cadence: Holy Deck at every 4 days against Blueair's every 3 weeks. Blueair's advantage is ratings volume (24K vs 1) and device support (3 vs 1). On price, rating, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Holy Deck holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Blueair has 24K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Blueair ships an update every 3 weeks, Holy Deck every 4 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Blueair versus Holy Deck: the parameters behind the verdict, then further details
ParameterBlueairHoly Deck
PriceFreeFree
Rating4.8 (24K ratings)5.0 (1 ratings) — better
Positive reviews26.4% of reviews—
Number of ratings24K — better1
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better26.2
Further details — not scored
Size1.3 GB80 MB
Age rating4+4+
DeveloperBlueair ABBiagio Azzarelli

Customer experience

Blueair

All ratings23,533 ratings
Positive96.8%
Neutral1.1%
Negative2.1%
Written reviews904 reviews
Positive26.4%
Neutral8.8%
Negative64.7%

Holy Deck

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Blueair

Reported bugs

5 issues
  • App crashes on startup
  • Frequent app disconnections
  • Incorrect air quality readings
  • Scheduling feature not working as expected
  • Inability to change WiFi password

Requested features

6 requests
  • Add Google Home/Alexa integration
  • Improve app stability and responsiveness
  • Provide more customization options
  • Allow data export and backup
  • Fix daylight saving time issues
Show 1 more
  • Enhance notification and alert features

Holy Deck

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Blueair

No in-app purchases

None

Holy Deck

No in-app purchases

Questions

Is Blueair free?
Blueair is free to download, with no in-app purchases.
Is Holy Deck free?
Holy Deck is free to download, with no in-app purchases.
Which has better reviews, Blueair or Holy Deck?
Holy Deck is rated higher. Blueair averages 4.8 out of 5 from 24K ratings, while Holy Deck averages 5.0 from 1 ratings.
Do Blueair or Holy Deck have ads?
Neither Blueair nor Holy Deck shows ads.
Which is updated more often, Blueair or Holy Deck?
Blueair ships an update every 3 weeks, and Holy Deck every 4 days. Most recently, Blueair was updated on November 10, 2026 and Holy Deck on October 31, 2026.

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