Comparison

dtac OneCall vs MonCalendar

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

Head to head
About

dtac OneCall

This cloud-based phone service transforms your devices into a virtual business PBX. It allows you to stay connected for business communications from anywhere, on any device.

Highlights
  • Cloud-based phone service
  • Virtual business PBX
  • Mobile and desktop integration
  • Stay connected anywhere
  • Full business communication features
Features
Read full description

dtac OneCall is a cloud-based phone service that turns your mobile devices and desktops into a full virtual business PBX. Stay connected whenever you are with dtac.

About

MonCalendar

This app provides a comprehensive Mon calendar system, including traditional dates, lunar calculations, cultural observances, and astrological insights. It offers seamless integration with your iOS Calendar and features a beautiful, intuitive interface for Mon communities worldwide.

Highlights
  • Traditional Mon calendar dates
  • Lunar calculations and moon phases
  • Cultural and religious observances
  • Mon astrological information
  • iOS Calendar integration
  • Home Screen widgets (Premium)
Features
Read full description

MonCalendar brings the ancient wisdom of the Mon calendar system to your iPhone and iPad. Perfect for Mon communities worldwide, this beautifully designed app seamlessly blends traditional Labentai calendar knowledge with modern iOS functionality. TRADITIONAL CALENDAR SYSTEM • View dates in the traditional Mon calendar (Sakarat) • Display Mon calendar dates with accurate lunar calculations. • See Mon month names and fortnight days (waxing/waning moon phases) • Track moon phases for traditional observances. • Automatic conversion between Western and Mon dates. CULTURAL & RELIGIOUS OBSERVANCES • Traditional Buddhist holidays (Uposatha days) • Full moon and new moon dates for religious observances • Complete list of Mon cultural celebrations and festivals ASTROLOGICAL INFORMATION (LABENTAI) • Traditional Mon astrology based on your birth date • Weekday-based astrological interpretations • Planetary influences and zodiac information • Lucky and unlucky days according to traditional beliefs • Personalized astrological insights CALENDAR INTEGRATION • Create events that sync with iOS Calendar • View your iOS Calendar events within MonCalendar • Add Mon calendar context to your events • Full two-way synchronization with iCloud • Support for multiple calendars MODERN FEATURES • Beautiful, intuitive interface designed for iOS • Support for iPhone and iPad with optimized layouts • Home Screen widgets showing today's Mon date (Premium) • Dark mode support • Multilingual support: English and Mon language • Custom Pyidaungsu font for authentic Mon text rendering WIDGET FEATURE (Premium) • Display today's Mon date on your Home Screen • Quick glance at moon phase and fortnight day • Always up-to-date calendar information FOR MON COMMUNITIES Whether you're living in Mon, Thailand, or anywhere in the diaspora, Mon Calendar helps you stay connected to your cultural roots. Perfect for: • Tracking religious observances and meditation days • Planning traditional ceremonies and celebrations • Teaching children about Mon calendar traditions • Consulting astrological information for important decisions • Staying informed about cultural holidays PRIVACY FIRST • Calendar access only when you grant permission • All data stored securely on your device and iCloud • No tracking or third-party data sharing • Your calendar events remain private FREE FEATURES INCLUDE: • Full Mon calendar conversion • Holiday and observance listings • Astrology information • Event creation and calendar sync • Multilingual language options By using this app, you agree to Apple's Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

dtac OneCall4 screens
MonCalendar4 screens

Verdict

The call

The clearest difference is in-app purchases: dtac OneCall at none against MonCalendar's 3. dtac OneCall also leads on ads (none vs shown) and iOS requirement (15.5 vs 17.6). MonCalendar's advantage is update cadence (every 2 months vs every 13 months) and ratings volume (4 vs 1). On price, rating 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. MonCalendar sells 3 in-app purchases, starting at $1.99 per month. dtac OneCall asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for dtac OneCall against 5.0 for MonCalendar. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

dtac OneCall ships an update every 13 months, MonCalendar every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 3 level
dtac OneCall versus MonCalendar: the parameters behind the verdict, then further details
Parameterdtac OneCallMonCalendar
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Number of ratings14 — better
Update frequencyEvery 13 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.6
Further details — not scored
Size215 MB6 MB
Age rating4+4+
DeveloperTRUE CORPORATION PUBLIC COMPANY LIMITEDMin Site Chan

Customer experience

dtac OneCall

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

MonCalendar

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

dtac OneCall

No in-app purchases

3 purchases

MonCalendar

Subscriptions2
  • Monthly Widget Access$1.991 Month
  • Yearly Widget Access$12.991 Year
One-time1
  • Lifetime Widget Access$29.99

Questions

Is dtac OneCall free?
dtac OneCall is free to download, with no in-app purchases.
Is MonCalendar free?
MonCalendar is free to download, with in-app purchases available.
Which has better reviews, dtac OneCall or MonCalendar?
dtac OneCall and MonCalendar are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do dtac OneCall or MonCalendar have ads?
MonCalendar shows ads; dtac OneCall does not.
Which is updated more often, dtac OneCall or MonCalendar?
dtac OneCall ships an update every 13 months, and MonCalendar every 2 months. Most recently, dtac OneCall was updated on November 3, 2026 and MonCalendar on November 4, 2026.

Other comparisons