Comparison

Diddit vs Mark.

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

Head to head
About

Diddit

Create shared trackers for recurring life events with others. Easily log entries, view historical timelines, and manage household tasks, hobbies, or pet care. Your data is securely stored in iCloud with no third-party tracking.

Highlights
  • Create shared trackers
  • One-tap logging
  • Historical timelines
  • Private or shared groups
  • iCloud data storage
  • No third-party tracking
Features
Read full description

Keep track of the things that don't belong on a to-do list, and do it with others. Diddit allows you to create trackers, shared groups, and historical timelines for the things that recur in life. It's great for household tasks, caring for kids or pets, hobbies, and anything that requires a shared record. Your data is stored in your existing iCloud account -- there's no separate sign-up and no other server involved. There's also no third-party tracking, no analytics, and no metrics gathering. Start using Diddit immediately with no setup. It feels just like a built-in app. If you're comfortable with Reminders, you'll be right at home in Diddit. - Create groups to hold private or shared trackers - Add trackers for anything you want to keep track of - Use one-tap logging to easily add an entry to any trackers - Include a note if you need to refer back to it - View the historical timeline of each tracker, including the time elapsed between each entry - Ask Siri when you last did something, or to log a new entry in a tracker Diddit is made in New York City by an independent developer. -- Terms of Use https://didditapp.com/terms

About

Mark.

Read full description

Mark is a notes and lists app that looks like paper and stays out of your way. Write a note. Make a list. Everything saves as you type, so there is no save button anywhere. HIGHLIGHT ANY LINE Color a single line of a list, the way you would with a marker: the thing to buy first, the one that matters, the one that's late. Give a whole note a color too. ON THE GRID Every note sits on a printed grid of rows and columns. Lay your board out as Flow, Grid or List, whichever way you think. LISTS THAT KEEP UP Check things off and they drop to the bottom. Tuck items under others. A link shows its page's title instead of the address. FIND IT AGAIN Pin notes to the top, add labels, archive what's done and search everything. Deleted notes wait in Trash for 7 days. YOURS, EVERYWHERE Sign in with your email, no password, and your notes sync with Mark on the web at markdot.app. Mark works offline and catches up when you're back. LIGHT AND DARK Mark follows your iPhone's appearance, or pick one in Settings. PRIVATE BY DESIGN No ads and no trackers. Your notes are yours: export everything or delete your account from Settings at any time.

Screenshots

Diddit4 screens
Mark.4 screens

Verdict

The call

The clearest difference is in-app purchases: Mark. at none against Diddit's 2. Mark. also leads on update cadence (daily vs monthly). On price, ads, device support and iOS requirement 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. Diddit sells 2 in-app purchases, starting at $1.99 per month. Mark. asks for nothing beyond the download.

UpkeepUpdate frequency

Diddit ships an update monthly, Mark. daily. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Diddit versus Mark.: the parameters behind the verdict, then further details
ParameterDidditMark.
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyMonthlyDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone
Requires iOS18.018.0
Further details — not scored
Size18 MB8 MB
Age rating4+4+
DeveloperChristopher LoSaccoGeoform LLC

In-app purchases

2 purchases

Diddit

Subscriptions2
  • Diddit Plus (Monthly)$1.991 Month
  • Diddit Plus$19.991 Year
None

Mark.

No in-app purchases

Questions

Is Diddit free?
Diddit is free to download, with in-app purchases available.
Is Mark. free?
Mark. is free to download, with no in-app purchases.
Do Diddit or Mark. have ads?
Neither Diddit nor Mark. shows ads.
Which is updated more often, Diddit or Mark.?
Diddit ships an update monthly, and Mark. daily. Most recently, Diddit was updated on October 21, 2026 and Mark. on October 16, 2026.

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