Comparison

days vs BDT

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

Head to head
About

days

This app helps you track important past and future dates, from personal milestones to expiring documents. It offers a clear interface to manage events outside of standard calendars, with customizable reminders and categorization.

Highlights
  • Track past and future life events
  • Customizable reminders up to 31 days in advance
  • Clear UI with extensive categorization
  • Manage events outside of standard calendars
  • iCloud sync across iOS devices
  • Filtering, searching, and sharing capabilities
Features
Read full description

days, the perfect complement to Calendar - Keep track of the most important dates in your life! ① If you’re tired of fishing through calendar apps to find important dates that you occasionally need, either from the distant past or the far off future, then days is for you! ② If you want to see clearly the events coming up in your calendars without being shown lots of empty white boxes with entries in text so tiny you can’t even read what’s there on a given day, then days is for you! ③ If you want to know how long it’s been since you left school / university, had your last hair cut, saw a doctor, had a vaccination, started your current job, left your previous job, when you bought your car, how old your television is, then days is for you! ④ If you want to be reminded up to 31 days before your passport / drivers license expires, when your mortgage / loans run down, when your next medical appointment is, when you need to perform routine maintenance on your household devices, when you have to renew your subscriptions / contracts, how long to go before your vacation starts or you can retire, then days is for you! ⑤ If you want a single app that keeps track of ALL the most important dates in your life, and lets you manage these in a simple and clear UI, yet provides extensive categorisation, sorting, filtering, searching, and sharing capabilities, showing how old a past event is or a countdown to when a future event will occur, then days is for you! Unlike most calendar apps which focus on events coming up in the near future, days has been designed to keep track of the most important dates in your life from the distant past to the distant future. It manages this by seamlessly combining calendar entries with its own database to store events outside of calendar. Use days to store distant past events such as your entire education, employment, medical history, and events off in the future like legal documents expiring, contracts running down, etc. Use days own database to store events in three broad stores: ► Days Gone - Great for important dates you need to remember from the past: Medical Dates, Personal Dates, Project Milestones, Employment Dates, Education Dates, Equipment Age, Journal / Log Book ► Annual - Great for annually recurring events, just enter the details once and days will always remember: Birthdays, Anniversaries, Name days, Death dates, Public Holidays, Historic Events, National Celebrations ► Days To Go - Excellent as a to-do reminder store for keeping track of important dates coming up in the future: Warranties Expiring, Membership / Subscription Renewals, Contractual Dates, Legal Documents Expiring, Bank Cards Expiring, Project Deadlines, Appointments, House Chores, Equipment Maintenance, Vacations and important Life Events Features _________ ► Universal app (iPad/iPhone/iPod Touch) with iCloud synch and other sharing features to transfer events between all iOS devices. ► Local notification alerts, you choose which events you want to be alerted to and how many days before, up to 31 days for Days To Go and Annual events. ► Instant sorting by Days-to-Go / Gone / Alphabetical - How many calendar's let you sort events alphabetically? ► Instant filtering on multiple Categories / Calendars. ► Copy entries across the lists, and to and from Calendars. ► Powerful search feature with drill down filtering. ► Add unlimited notes to each event, which are also checked when searching. ► Built in date calculator. ► Preferences to control display behaviour and set alert time. ► Change UI Theme Colours ► Choose from SF Symbols or Emojis to set category icons, and choose your own category colour ► Supports Light & dark Modes with the ability to set in the app your preferred choice, and supports adaptive text for using larger text reading sizes. All day’s events can be exported for backup, importing, or sharing. Note: Calendar events are integrated from 1 day back to 1 year forward.

About

BDT

Easily track all important dates with this iPhone companion. It displays upcoming birthdays from your contacts, showing ages and zodiac signs. Stay organized and never miss a celebration.

Highlights
  • View birthdays from contacts
  • Sort by birthdate
  • Highlight next upcoming birthday
  • Deep link to contacts
  • Display age and zodiac sign
Features
Read full description

Introducing the ultimate birthday companion for your iPhone. Never miss a friend or family member's special day again! With this app, you can easily view all the birthdays stored in your Contacts app sorted by birthdate. The app highlights the next upcoming birthday making it easier for you to plan ahead. It also deep links to your contacts app. Plus, it even displays people’s age and zodiac sign, making it a fun and interactive way to stay organized. Download Birthdays today and make sure you never forget a birthday ever again!

Screenshots

days4 screens
BDT3 screens

Verdict

The call

The clearest difference is rating: BDT at 5.0 against days's 3.1. BDT also leads on review sentiment (100% vs 63%) and chart position (#192 vs unranked). days's advantage is update cadence (every 3 weeks vs every 36 months) and price ($0.99 vs $4.99). On 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

days costs $0.99 and BDT $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BDT holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 13 and 3 respectively. Written reviews point the same way: 63% of days's written reviews are positive against 100% of BDT's.

UpkeepUpdate frequency

days ships an update every 3 weeks, BDT every 36 months. The most recent releases landed on July 10, 2026 and July 30, 2026 respectively.

Scorecard8 real differences · 3 level
days versus BDT: the parameters behind the verdict, then further details
ParameterdaysBDT
Price$0.99 — better$4.99
Rating3.1 (13 ratings)5.0 (3 ratings) — better
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings13 — better3
Update frequencyEvery 3 weeks — betterEvery 36 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#192 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.415.6 — better
Further details — not scored
Size5 MB44 MB
Age rating4+4+
DeveloperNaim ChoudhryJervis Thompson

Customer experience

days

All ratings13 ratings
Positive38.5%
Neutral23.1%
Negative38.5%
Written reviews128 reviews
Positive62.5%
Neutral13.3%
Negative24.2%

BDT

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

days

No in-app purchases

None

BDT

No in-app purchases

Questions

Is days free?
days costs $0.99, with no in-app purchases.
Is BDT free?
BDT costs $4.99, with no in-app purchases.
Which has better reviews, days or BDT?
BDT is rated higher. days averages 3.1 out of 5 from 13 ratings, while BDT averages 5.0 from 3 ratings.
Do days or BDT have ads?
Neither days nor BDT shows ads.
Which is updated more often, days or BDT?
days ships an update every 3 weeks, and BDT every 36 months. Most recently, days was updated on July 10, 2026 and BDT on July 30, 2026.

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