Comparison

days vs Sincerely

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

Sincerely

Never forget important dates or personal details again. This app helps you track custom occasions, remember likes and dislikes, and manage gift ideas for everyone you know. Stay organized with home screen widgets and timely notifications.

Highlights
  • Custom occasion reminders
  • Contact profile tracking
  • Gift idea organizer
  • Home screen widgets
  • Time-sensitive notifications
  • Searchable occasion lists
Features
Read full description

In a world overflowing with events, moments, and milk cartons with expired dates, wouldn’t it be nice to be able to remember it all? What if you had a friend that new all the big and small occasions, to give you a little reminder? Here's how it works: - Remember occasions for anything From holidays to the day you adopted your pet turtle, Leonard. Our custom occasions feature ensures you can remember every event that is important to you. - Track likes & dislikes With detailed contact profiles, you'll remember Aunt Linda's newfound love for salsa dancing or Kelly’s latest kitchen disaster. - Easily sort & search all occasions Customized lists for any occasions you want, half-birthdays, holidays, first day of school, anything you want. - Gift ideas tracker Give better gifts by writing down the small wants you hear about from someone throughout the year, making that time of year stress-free. - Home screen widgets See upcoming occasions front and center. - Time-sensitive notifications When occasions get close we will send you notifications so you have plenty of time to prepare. Forgot Grandma’s birthday again? We didn’t. And hey, we're here to ensure you remember next time. Can’t remember if it’s your third or fourth anniversary? No worries, your friends here at sincerely-est know, we won’t tell if you don’t...

Screenshots

days4 screens
Sincerely4 screens

Verdict

The call

The clearest difference is price: Sincerely at Free against days's $0.99. Sincerely also leads on rating (5.0 vs 3.3) and review sentiment (100% vs 63%). days's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (12 vs 1). On ads, in-app purchases, monetization model 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

Sincerely is free to download; days costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sincerely holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: days has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of days's written reviews are positive against 100% of Sincerely's.

UpkeepUpdate frequency

days ships an update every 3 weeks, Sincerely every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
days versus Sincerely: the parameters behind the verdict, then further details
ParameterdaysSincerely
Price$0.99Free — better
Rating3.3 (12 ratings)5.0 (1 ratings) — better
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings12 — better1
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.417.0 — better
Further details — not scored
Size5 MB59 MB
Age rating4+12+
DeveloperNaim ChoudhryVilidea LLC

Customer experience

days

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

Sincerely

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

days

No in-app purchases

None

Sincerely

No in-app purchases

Questions

Is days free?
days costs $0.99, with no in-app purchases.
Is Sincerely free?
Sincerely is free to download, with no in-app purchases.
Which has better reviews, days or Sincerely?
Sincerely is rated higher. days averages 3.3 out of 5 from 12 ratings, while Sincerely averages 5.0 from 1 ratings.
Do days or Sincerely have ads?
Neither days nor Sincerely shows ads.
Which is updated more often, days or Sincerely?
days ships an update every 3 weeks, and Sincerely every 4 months. Most recently, days was updated on October 23, 2026 and Sincerely on October 24, 2026.

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