Comparison

Future Capsule vs Letterseal

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

Head to head
About

Future Capsule

Features
Read full description

Future Capsule is a private time capsule diary for journaling, letters to your future self, photo memories, and meaningful moments you want to reopen later. Write now, choose an open date, and meet your past self again when the time feels right. - Create capsules for daily journaling, future self letters, and messages for someone important - Save feelings, stories, and photos in a time capsule you can reopen later - Use weekly view, monthly calendar, and countdowns to see what is opening next - Set reminders to build a gentle and consistent journaling habit - Enjoy a lightweight, ad-free, private writing space - Members can use home screen widgets to check this week and calendar status faster If you're looking for a time capsule app, diary, photo journal, or a place to write letters to your future self, Future Capsule gives you a calm space to keep those memories safe. Privacy Policy: https://futurecapsule.top/legal/en/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Letterseal

Features
Read full description

Write a letter to the person you'll become. Seal it in wax. Then let time do the rest. Letterseal is a time capsule for your words. Write to your future self, choose the day it opens and press the seal. Until that day, all you see is the envelope and a countdown. NEW IN 4.0 โ€ข This Year's Letter: write it in December or January with a new New Year question; it opens on New Year's Day at least ten months later โ€ข Sealed letters you send now arrive with a short note and an App Store link, so anyone can open them in Letterseal (free). Nothing about your letter is in the note โ€ข Received a letter? Ask for a reminder on the day it opens โ€ข Three new app icons: Wax Seal, Envelope and Gold Seal HOW IT WORKS 1. Write on paper that feels like paper. Add photos, and with Unlimited your voice or a short video. 2. Choose a date: next month, your next birthday, ten years from now. Or let Letterseal hide a surprise date. 3. Seal it. Press the wax, and the letter stays closed until its day. 4. Open it. On the day, break the seal and read what you once hoped, feared and promised. LETTERS FOR SOMEONE ELSE Write to your child for their 18th birthday, to a friend for next summer, to your partner for your anniversary. Letterseal sends the sealed letter as a file by AirDrop, Messages or Mail. When they open it in Letterseal, it waits, sealed, until the date. They need Letterseal (free) to open it. MADE FOR THE WAIT โ€ข 56 writing prompts, including New Year and "for someone" themes โ€ข Home Screen and Lock Screen widgets, including a new large widget โ€ข A Live Activity in the final 8 hours, and a live seconds countdown on the last day โ€ข Reply to your past self, or write ahead to your next self โ€ข Export any opened letter as a keepsake PDF PRIVATE BY DESIGN No account. No cloud. No ads. No tracking. Your letters stay on your iPhone and the developer collects no data. Lock the app with Face ID and keep an encrypted backup file wherever you like. FREE, OR UNLIMITED ONCE Letterseal is free to download. The free version keeps up to 5 sealed letters at a time, with 2 papers, 2 wax colors, up to 2 photos per letter and one surprise date. Letters for someone else (words and photos) are free and don't count toward the 5. "This year's letter" is free too. Letterseal Unlimited is a one-time purchase, not a subscription. It unlocks unlimited sealed letters, all 6 papers and 8 wax colors plus your initials pressed into the seal, video letters (up to 3 minutes) and voice letters (up to 5 minutes), up to 6 photos per letter and unlimited surprise dates. AN HONEST NOTE Letterseal keeps a letter closed until its date. That is the whole ritual. It is a sealed envelope, not a bank vault: please don't use it for passwords or anything that must stay hidden from someone holding your unlocked iPhone. If you truly need to, you can open a letter early, but only on purpose.

Screenshots

Future Capsule4 screens
Letterseal4 screens

Verdict

The call

The clearest difference is update cadence: Future Capsule at every 2 days against Letterseal's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Future Capsule sells 8 in-app purchases, starting at $0.99 per month and Letterseal sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Future Capsule ships an update every 2 days, Letterseal every 4 weeks. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard1 real difference ยท 5 level
Future Capsule versus Letterseal: the parameters behind the verdict, then further details
ParameterFuture CapsuleLetterseal
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.0 โ€” better17.0
Further details โ€” not scored
Size24 MB6 MB
Age rating9+4+
Developerๆ€้œ– ๆŽMURATHAN ORAN

In-app purchases

8 purchases

Future Capsule

Subscriptions4
  • 1-Month Plan$0.991 Month
  • 3-Month Plan$2.993 Months
  • 6-Month Plan$4.996 Months
Show 1 more
  • 1-Year Plan$7.991 Year
One-time4
  • 420 fragment$0.99
  • 900 fragment$1.99
  • 1900 fragment$3.99
Show 1 more
  • 5880 fragment$8.99
1 purchases

Letterseal

One-time1
  • Letterseal Unlimited$5.99

Questions

Is Future Capsule free?
Future Capsule is free to download, with in-app purchases available.
Is Letterseal free?
Letterseal is free to download, with in-app purchases available.
Do Future Capsule or Letterseal have ads?
Neither Future Capsule nor Letterseal shows ads.
Which is updated more often, Future Capsule or Letterseal?
Future Capsule ships an update every 2 days, and Letterseal every 4 weeks. Most recently, Future Capsule was updated on November 9, 2026 and Letterseal on November 6, 2026.

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