Comparison

Bubble Level + Compass Pro vs Nineteen Days

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

Head to head
About

Bubble Level + Compass Pro

This utility app provides a precise spirit level and compass for your iPhone and Apple Watch. Get live readings on your wrist, even when your phone's screen is out of sight. Features include bullseye, horizontal, and vertical levels with 0.1-degree precision.

Highlights
  • Bullseye, horizontal, and vertical levels
  • 0.1-degree precision
  • True and magnetic heading
  • Apple Watch companion app
  • Gyro or accelerometer sensor mode
  • Red-light night mode
Features
Read full description

Bubble Level + Compass Pro combines a precise spirit level, compass, and Apple Watch companion app, so when your phone is placed somewhere hard to see its screen, you can still get live readings from your wrist. No more out-of-reach setups, and no more crouching. Features: • Bullseye level plus horizontal and vertical levels with 0.1 degree precision • Bubble level units: Angle (degrees) or Incline/Slope (%) • True and magnetic heading with direction text • Magnetic declination • Apple Watch companion app • Gyro or accelerometer sensor mode • Gyro calibration offset to compensate for camera bulge or uneven phone cases • Pitch/Roll/Yaw rotation rate readouts • Compass calibration status • Red-light night mode The tool is normally included in my astronomical app (Polar Scope Align Pro), but I decided to release it as a separate app because I could not find anything with the features I wanted on the app store. (A free ad-supported version is also available)

About

Nineteen Days

This app provides a Bahá’í calendar companion for your mobile device. It helps you track the nineteen-month calendar, remember Holy Days and Feasts, and incorporate prayer and reflection into your daily routine. Widgets offer quick access to calendar information and reminders.

Highlights
  • Bahá’í calendar tracking
  • Home screen widgets
  • Holy Day and Feast reminders
  • Prayer and meditation support
  • Qiblih direction compass
  • Sunset-based calendar
Features
Currently charting
Read full description

# Nineteen Days **Your Bahá’í Calendar, Everywhere.** Stay connected to the Bahá’í calendar throughout your day with Nineteen Days Widget, a beautifully designed calendar companion for iPhone and iPad. Discover today's Badí‘ date, follow the nineteen-month calendar, remember Holy Days and Feasts, and make time for prayer, meditation, and reflection in your daily life. ### Features **Bahá’í Calendar** - View today's Badí‘ date alongside the Gregorian calendar. - Explore the nineteen months of the Bahá’í year. - Follow calendar days that begin at sunset. - Keep track of upcoming Holy Days and Feasts. **Beautiful Home Screen Widgets** - Display the Bahá’í date directly on your Home Screen. - Explore calendar dial and upcoming-event widgets. - Access useful calendar information without opening the app. **Holy Day & Feast Reminders** - Receive notifications for upcoming Holy Days and Feasts. - Choose reminders three days in advance. - Customize notification preferences and reminder times. **Meditation & Reflection** - Make time for quiet meditation and personal reflection. - Incorporate moments of stillness into your daily routine. - Support a balanced daily rhythm of prayer, meditation, and remembrance. **Prayer & Remembrance** - Set reminders for obligatory prayers. - Access remembrance prayers throughout the day. - Personalize prayer notifications to support your daily routine. **Qiblih Direction** - Find the direction of the Qiblih with the built-in compass. - Access Qiblih information through supported widgets. **Sunset-Based Calendar** - Follow the Bahá’í day as it begins at sunset. - Use location-aware sunset calculations for accurate calendar transitions. Nineteen Days Widget brings the beauty and meaning of the Bahá’í calendar into everyday life through a simple, thoughtful experience. **Developed by Nineteen Days, LLC** Support: info@nineteendays.com Website: https://nineteendays.com Note: The Nineteen Days Calendar app is not affiliated with or endorsed by the Bahá'i World Centre. It is an independent product created by Nineteen Days for the convenience of Bahá'is worldwide. About Badi Calendar The Badi calendar, adopted by the Bahá'i Faith, is a solar calendar composed of nineteen months and four or five intercalary days. The beginning of the year occurs at the equinox in spring. Each month has its name representing a virtue (e.g., Perfection, Mercy), as do the days of the week. This calendar was initiated in 1844 when the Báb began to spread His teachings.

Screenshots

Bubble Level + Compass Pro4 screens
Nineteen Days4 screens

Verdict

The call

The clearest difference is update cadence: Nineteen Days at weekly against Bubble Level + Compass Pro's every 17 months. Nineteen Days also leads on chart position (#103 vs unranked). Bubble Level + Compass Pro's advantage is price ($0.99 vs $5.99) and device support (4 vs 2). On review sentiment, ads, in-app purchases and monetization model 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

Bubble Level + Compass Pro costs $0.99 and Nineteen Days $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bubble Level + Compass Pro ships an update every 17 months, Nineteen Days weekly. Both last shipped on November 5, 2026.

Scorecard5 real differences · 6 level
Bubble Level + Compass Pro versus Nineteen Days: the parameters behind the verdict, then further details
ParameterBubble Level + Compass ProNineteen Days
Price$0.99 — better$5.99
Rating5.0 (22 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings22 — better—
Update frequencyEvery 17 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#103 — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size7 MB12 MB
Age rating4+4+
DeveloperDimitrios KechagiasNineteen Days,LLC

Customer experience

Bubble Level + Compass Pro

All ratings22 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nineteen Days

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bubble Level + Compass Pro

No in-app purchases

None

Nineteen Days

No in-app purchases

Questions

Is Bubble Level + Compass Pro free?
Bubble Level + Compass Pro costs $0.99, with no in-app purchases.
Is Nineteen Days free?
Nineteen Days costs $5.99, with no in-app purchases.
Do Bubble Level + Compass Pro or Nineteen Days have ads?
Neither Bubble Level + Compass Pro nor Nineteen Days shows ads.
Which is updated more often, Bubble Level + Compass Pro or Nineteen Days?
Bubble Level + Compass Pro ships an update every 17 months, and Nineteen Days weekly. Most recently, Bubble Level + Compass Pro was updated on November 5, 2026 and Nineteen Days on November 5, 2026.

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