Comparison

Kept By vs Memento

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

Head to head
About

Kept By

Digitally preserve cherished paper memories like cards, letters, and notes. Capture images, add details like sender and occasion, and easily organize, search, and revisit your personal keepsakes.

Highlights
  • Digitally preserve paper memories
  • Capture front, inside, and back images
  • Add sender, event, date, and notes
  • Organize and search personal collection
  • Browse saved keepsakes easily
Features
Read full description

Kept By helps you preserve the cards, letters, notes, and personal keepsakes that matter. Instead of keeping meaningful paper memories scattered in boxes, drawers, or folders, Kept By gives you a simple way to capture and organize them on your iPhone. Use Kept By to photograph the front, inside pages, and back of a card or letter, then save it with helpful details such as the sender, occasion, date, and personal notes. Your keepsakes can be browsed, searched, and revisited whenever you want. Features: • Capture cards, letters, notes, and keepsakes • Save front, inside, and optional back images • Add sender, event, date, and notes • Browse your saved memories in one place • Search and organize your personal collection • View saved keepsakes in a clean, simple layout Kept By is designed for personal memory keeping. It is not a social network and does not require an account.

About

Memento

Features
Read full description

Some days deserve more than a number on a calendar. The first date. The wedding. The day the dog came home. Memento counts those days for you — down to the ones ahead, up through the ones you've shared. And each year, when the day comes around, it asks for one photo and a few words. That's how a countdown becomes a timeline: year after year, your milestones grow into the story of your life. WHAT IT DOES • Counts down and counts up — days left, days together, years passed • Marks milestones on its own: 100 days, 365, 1,000, five years, ten • On This Day — the same date, remembered across the years • A photo album and a journal for every event • Solar and lunar dates, both handled properly • Templates for birthdays, weddings, first dates, pets • Reminders 1, 3, 7 or 30 days ahead — so no day slips by • 18 colour themes and 8 app icons • Locks behind a PIN only you know • Exports everything to a ZIP anytime QUIET BY DESIGN No account. No cloud. Everything lives on your phone, works offline, and belongs to you. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Kept By4 screens
Memento4 screens

Verdict

The call

The clearest difference is update cadence: Memento at every 4 days against Kept By's every 2 months. Memento also leads on iOS requirement (15.0 vs 18.0). On price, 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

Both are free to download. Kept By sells 1 one-off in-app purchase and Memento sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kept By ships an update every 2 months, Memento every 4 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 8 level
Kept By versus Memento: the parameters behind the verdict, then further details
ParameterKept ByMemento
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size68 MB40 MB
Age rating4+4+
DeveloperJames JacksonHo Van Dai

In-app purchases

1 purchases

Kept By

One-time1
  • Unlimited Keepsakes$4.99
2 purchases

Memento

Subscriptions2
  • Memento Premium Monthly$0.991 Month
  • Memento Premium Yearly$9.991 Year

Questions

Is Kept By free?
Kept By is free to download, with in-app purchases available.
Is Memento free?
Memento is free to download, with in-app purchases available.
Do Kept By or Memento have ads?
Neither Kept By nor Memento shows ads.
Which is updated more often, Kept By or Memento?
Kept By ships an update every 2 months, and Memento every 4 days. Most recently, Kept By was updated on October 31, 2026 and Memento on October 31, 2026.

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