Comparison

Letter to your future vs AnniversaryNote Dates

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

Head to head
About

Letter to your future

Send messages to yourself in the future with this intuitive app. Schedule delivery for a specific date and receive notifications when your letter arrives. Protect your thoughts with a passcode lock for privacy.

Highlights
  • Send letters to the future
  • Scheduled delivery
  • Notification on arrival
  • Passcode lock for privacy
  • Intuitive design
Features
Read full description

This app allows you to send a letter to your future self. It has a simple design and is intuitive to use. You can set the letter to be delivered at a specified time, and it will notify you when the letter arrives. You can send a letter even years in advance. As long as you don't delete the app, you can receive it at any time. The app has a passcode lock, so you don't have to worry about anyone seeing the contents of your letters. (Some models are not compatible with this function. When I was in elementary school, I put my letters in a small can and opened it at my coming-of-age ceremony, which was fun, so I made this app. I would be very happy if you could give me any feedback or suggestions on how I can improve this app. Please download it and try the magical experience of receiving a letter from your past self!

About

AnniversaryNote Dates

Features
Read full description

Keep birthdays, anniversaries, and meaningful dates in one calm place. AnniversaryNote is a simple important date tracker for birthdays, wedding anniversaries, relationship milestones, favorite memories, and any date you want to remember. The Home screen shows today, upcoming dates, the next birthday, and the next anniversary at a glance. You can check how many days are left, how many years have passed, and what age a birthday will be. Use the timeline views to look back by age or by day count, including milestones such as 100 days, 1,000 days, and 10,000 days. Main features - Add birthdays and anniversaries - See today, upcoming dates, next birthdays, and next anniversaries - Search, filter, and sort your list - View dates on a monthly calendar - Browse age and day-count timelines - Organize dates with categories - Light, dark, and system themes - Japanese and English display options - Optional local reminders on the day, the day before, 7 days before, and day-count milestones - Export and import your data - Anniversary data is stored on device Recommended for people who want to: - Remember family and friends' birthdays - Keep wedding and relationship anniversaries organized - Save fan milestones, travel memories, or personal dates - Use a quiet, simple anniversary calendar - Check how many days are left until an important date AnniversaryNote is not a social timeline. It is a private notebook for the dates that matter to you.

Screenshots

Letter to your future4 screens
AnniversaryNote Dates4 screens

Verdict

The call

The clearest difference is in-app purchases: AnniversaryNote Dates at none against Letter to your future's 1. AnniversaryNote Dates also leads on update cadence (every 9 days vs monthly). Letter to your future's advantage is iOS requirement (15.0 vs 17.0). On price, ads 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. Letter to your future sells 1 in-app purchase, starting at $2.99 per month. AnniversaryNote Dates asks for nothing beyond the download.

UpkeepUpdate frequency

Letter to your future ships an update monthly, AnniversaryNote Dates every 9 days. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Letter to your future versus AnniversaryNote Dates: the parameters behind the verdict, then further details
ParameterLetter to your futureAnniversaryNote Dates
PriceFreeFree
Rating5.0 (10 ratings) — better—
Positive reviews91.2% of reviews—
Number of ratings10 — better—
Update frequencyMonthlyEvery 9 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size143 MB26 MB
Age rating4+4+
DeveloperSaki TsujiYUUMA TAKINO

In-app purchases

1 purchases

Letter to your future

Subscriptions1
  • Monthly Premium Plan$2.991 Month
None

AnniversaryNote Dates

No in-app purchases

Questions

Is Letter to your future free?
Letter to your future is free to download, with in-app purchases available.
Is AnniversaryNote Dates free?
AnniversaryNote Dates is free to download, with no in-app purchases.
Do Letter to your future or AnniversaryNote Dates have ads?
Both Letter to your future and AnniversaryNote Dates show ads.
Which is updated more often, Letter to your future or AnniversaryNote Dates?
Letter to your future ships an update monthly, and AnniversaryNote Dates every 9 days. Most recently, Letter to your future was updated on October 25, 2026 and AnniversaryNote Dates on October 16, 2026.

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