Postmello vs DAYLine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Postmello
Create and send personalized digital letters with friends and family. Design unique desks, choose stationery, and add custom stamps. Enjoy a connected experience without the pressure of constant notifications.
- Write and draw digital letters
- Customize desks and stationery
- Add stickers and stamps
- Send letters to friends and family
- Receive replies via email
- PIN-protected privacy settings
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Keep in touch without texting. Write and draw digital letters with friends and family, on iPhone and iPad. Choose the paper, write, draw or type, add stickers, stamp the envelope and send. A whole letter, made for someone. Their very own place: a desk that feels like them, and papers, envelopes, stamps and stickers in every collection. Connected, not always on. No chat bubbles, typing dots or read receipts, just a mailbox flag when a letter arrives. Their independence, your boundaries. Only friends you approve, settings behind your PIN, no photos or videos, and letters can't be forwarded. Friends and family without the app write back by email, and their reply arrives as a letter: words only, with no links, photos or attachments. Desks, friends, letters and replies are free, with up to six desks in one account. Collections are optional one-time purchases, yours to keep. No ads, and we never sell personal data. Terms of Use: https://postmello.com/terms End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DAYLine
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DAYLine is a cute, minimal time-management app that puts your "planned day" and your "real day" side by side. See how the plan you made in the morning actually played out, and where your time went. ฅ^•ω•^ฅ ▪ Plan vs Actual Swipe left and right to move between today's plan (PLAN) and what you really did (ACTUAL). Completing a plan copies it to your actual log with the same time, and adjusting it to the real start and end times compares it to the plan right away. A setting can also log the moment you check a plan as its actual time. ▪ Look Back on the Month with the Calendar The more plans you finish, the deeper each day is colored. You can show how many todos each day has (turn it off in Settings). Tap a day to see its plan and actual as time bars side by side, along with how far they differed, such as "started 10 min late" or "ended 5 min early". Tap a bar to stretch the timeline out to the minute. ▪ Expand a Day and Save It as a Photo Open any day in a larger view to compare plan and actual at a glance, then save it to Photos as a square image to share or keep. ▪ Routines You Can Finish, Not Just Delete Repeat plans on chosen weekdays, add tags like #workout, and plan ahead on any date. When a routine has run its course, mark it Complete to keep it instead of deleting it, with a little celebration. See every routine, in progress or completed, under Routines in the side menu. ▪ Stats for Every Plan Plans with a time get line graphs of start and end times: the gap between planned (dotted) and actual (solid) reveals your own patterns. Plans without a time, like a plain to-do, get a grass-style grid that fills in as you check them off day by day. ▪ Reminders That Build the Habit * Morning start: a nudge at the time of your day's first plan * Routine reminders: turn them on only for the routines you want * Come-back nudge: one gentle reminder if you haven't opened the app for two days Everything runs on your device and you can switch each one off in Settings. ▪ Widgets for Every Need * Today's Plan: check what's left right on your Home Screen * Plan vs Actual: compare planned and actual times side by side * Pinned Goal: your pinned goal on one long, pretty card. It fits on the Lock Screen too * Monthly Goals: your goals and their progress at a glance Widgets follow the colors and shapes of the theme you choose. ▪ Monthly Goals Write several goals for the month and check each one off with a sparkling check when you get there. Pin your most important goal to keep it at the top of the screen. ▪ Live Activities · Dynamic Island See what you're doing right now, and what's next, live on your Lock Screen and Dynamic Island. ▪ Cute Themes Choose from Default, Pink, and Sky. Check marks turn into hearts in Pink and clouds in Sky. Light, Dark, and System modes are supported as well. ▪ Privacy First All your records stay on your device. No sign-up, no server, and no data sent anywhere. Export and import your data to back it up or move to a new phone. ▪ 4 Languages 한국어 · English · 中文 · 日本語 Tired of complicated to-do apps? Plan with DAYLine, record your day just as it flowed, and look back on it.
Screenshots
Verdict
The clearest difference is in-app purchases: DAYLine at none against Postmello's 10. DAYLine also leads on iOS requirement (16.4 vs 18.0). On price, update cadence, 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
Both are free to download. Postmello sells 7 one-off in-app purchases. DAYLine asks for nothing beyond the download.
Postmello ships an update every 6 days, DAYLine every 9 days. Both last shipped on October 31, 2026.
| Parameter | Postmello | DAYLine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 133 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Postmello LLC | JongEun Lee |
In-app purchases
Postmello
- Sakura Post$0.99
- Fairy Glen$0.99
- Ironhold$0.99
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- Ember Peak$0.99
- Fossil Camp2 variants$0.99
- Lunar Base2 variants$0.99
- Sandy Beach2 variants$0.99
DAYLine
No in-app purchases









