Comparison

Dayfly vs Piece Day

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

Head to head
About

Dayfly

Features
Read full description

Dayfly is for notes you only need for a little while. Notes quietly disappear after 24 hours by default. Parking spots, Wi-Fi passwords, locker numbers, today-only reminders — jot it down and forget about it. Dayfly cleans up after itself. Attach photos and videos too. That whiteboard, a receipt, a photo you only took to ask an AI about — capture it and share it straight from Dayfly. Dayfly-managed attachments are removed when an expired note is cleaned up. Photo-library originals and shared copies remain. Want to keep something? One star makes a note permanent. • No account, no sign-up — open and write • Stored on your device, with no account or cloud sync • No ads, no tracking • Minimal design, dark by default Dayfly Pro (lifetime Ā· one-time purchase): • Multiple photos + video attachments (free: one photo per note) • Per-note expiry — from 1 hour to 7 days, or forever • Lock Screen widget with your latest note and time left • Action Button & Siri quick capture (Control Center capture is free) • Notes fade out as they near expiry • Extra themes Not a subscription. Buy once, yours for life. Expired notes are hidden; stored data is cleaned up when the app is active. Device backups may include notes and attachments. Shared copies and originals in your photo library are not deleted when a Dayfly note expires.

About

Piece Day

Features
Read full description

Piece Day — a habit tracker that keeps your day in gentle little pieces We took the paper habit trackers from stationery-shop diaries and put them on your iPhone, unchanged. No sign-up, no elaborate setup. One tap marks today. ā–  Four trackers, one app Ā· Monthly — fill the calendar with green checks and see a whole month at a glance Ā· Weekly — plan this week's goals day by day, Monday through Sunday Ā· Time Table — colour in your day on a 24-hour dial Ā· Bucket List — tick off the things you want to do someday, one circle at a time ā–  Made for you if Ā· You want to get past day three and build something that lasts Ā· You love the feel of paper diaries and planners Ā· You've been looking for a tracker with nothing extra in it ā–  Private by design Ā· No login, no server — everything stays on your iPhone Ā· No ads, no tracking A pink dinosaur and a little black cat are here to keep you company. Take today one piece at a time.

Screenshots

Dayfly3 screens
Piece Day4 screens

Verdict

The call

The clearest difference is in-app purchases: Piece Day at none against Dayfly's 1. On price, update cadence, ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Dayfly sells 1 one-off in-app purchase. Piece Day asks for nothing beyond the download.

UpkeepUpdate frequency

Dayfly ships an update fortnightly, Piece Day every 11 days. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

Scorecard1 real difference Ā· 6 level
Dayfly versus Piece Day: the parameters behind the verdict, then further details
ParameterDayflyPiece Day
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyFortnightlyEvery 11 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size1 MB1 MB
Age rating4+4+
DeveloperYohan GwakWarm Tech Company

In-app purchases

1 purchases

Dayfly

One-time1
  • Mayfly Pro$3.99
None

Piece Day

No in-app purchases

Questions

Is Dayfly free?
Dayfly is free to download, with in-app purchases available.
Is Piece Day free?
Piece Day is free to download, with no in-app purchases.
Do Dayfly or Piece Day have ads?
Neither Dayfly nor Piece Day shows ads.
Which is updated more often, Dayfly or Piece Day?
Dayfly ships an update fortnightly, and Piece Day every 11 days. Most recently, Dayfly was updated on October 25, 2026 and Piece Day on October 8, 2026.

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