Sticker Calendar vs IO Mail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sticker Calendar
Organize your life with a visually appealing calendar that uses over 300 unique stamps and color-coded bars. Set customizable reminders, sync with Google Calendar, and manage recurring events effortlessly. Perfect for anyone seeking a fun yet functional way to track their schedule.
- 300+ unique stamps
- Color-coded event bars
- Customizable notifications
- Recurring event scheduling
- Google Calendar sync
- Multiple themes
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Stamp Calendar - #1 in Visibility, Usability & Style With 300+ stamps and color-coded bars, manage work, family, and activities at a glance. Features include notifications (5 min to 1 week ahead), recurring events, and Google Calendar sync. ■ Fun & Clear Schedule with Stamps! Choose from 300+ stamp varieties! Make your calendar not only organized but visually delightful! ■ See Your Schedule at a Glance Distinguish work and personal plans with color-coded bars for easy viewing! Stamps make it even clearer! ■ Never Miss an Event with Notifications Set detailed reminders from 1 week to 5 minutes before, so you'll never forget important events! ■ Choose Your Favorite Theme Customize the app design to match your style! New themes are regularly added. ■ Recurring Events Easily set up repeating schedules like "Every Monday" or "1st of every month." ■ Simple & Intuitive Event Entry No unnecessary features—simple operations anyone can master! ■ Google Calendar Sync Sync with Google Calendar to view and create events seamlessly. 【Recommended For】 ・Cute Design Lovers: Decorate your calendar with stamps like a fun diary ・Busy Professionals: Color-coding and notifications prevent oversights; quick entry saves time ・Not Tech-Savvy: Large, easy-to-read UI—no confusion ・Busy Parents: Manage family schedules with color-coding; set kids' activities with recurring events 【Premium Plan (Subscription)】 ■ Ad-Free Experience Subscribe to Premium Plan to remove all ads and enjoy a more comfortable calendar experience. ■ Payment & Auto-Renewal ・Payment will be charged to your Apple ID account upon confirmation of purchase ・Subscription automatically renews unless cancelled at least 24 hours before the end of the current period ・Your account will be charged for renewal within 24 hours prior to the end of the current period ■ Managing & Cancelling Subscription You can manage and cancel your subscription at any time: Go to iPhone "Settings" > "Apple ID" > "Subscriptions" > Select this app ■ Free Trial (※If applicable) New users can try Premium for 7 days free. After the trial period, it will automatically convert to a paid subscription. Terms of Use: https://www.notion.so/Terms-of-Use-287d433b690d8069bedee334eb0a7af3
IO Mail
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IO Mail is an email app you don't just read — you manage your mail with it. MAIL HUB Every launch starts with a summary of your day: unread mail, messages from important people, today's tasks, overdue items, follow-ups awaiting a reply and snoozed mail, all on one screen. MULTIPLE ACCOUNTS Bring Iyonosfer, Gmail, Outlook and any IMAP account into one app. See all inboxes together and give each account its own color and signature. RULES Create rules by sender, subject, attachment or size: move to a folder, label, flag, mark as read, mute notifications, notify with priority or create a task automatically. For Iyonosfer accounts rules also run on the server, so unwanted notifications never reach your phone. FOLLOW-UPS AND EXPECTED MAIL Get reminded when a mail you sent goes unanswered. Expecting a message? Create an expectation; it's marked when the mail arrives and you're alerted if it doesn't. TASKS, NOTES, SNOOZE Turn a mail into a task with a due date and add it to your calendar. Take notes and send them as mail. Snooze a message and it returns to your inbox when the time comes. LABELS AND IMPORTANT PEOPLE Group mail with colored labels. Mark important people so their mail stands out in Mail Hub. Send unwanted senders straight to junk. CALENDAR INVITATIONS Accept or decline meeting invitations and add them to your device calendar. INSTANT NOTIFICATIONS New-mail notifications arrive within seconds for Iyonosfer accounts. Other accounts are checked in the background at regular intervals. BUILT FOR IPAD In landscape, folders, the message list and the message sit side by side. PRIVACY AND SECURITY No ads, no tracking. Passwords are kept in the device's secure storage and mail content stays on your device. Lock the app with Face ID. Remote images never load without your permission. IO Mail is developed by Iyonosfer Yazılım Hizmetleri.
Screenshots
Verdict
The clearest difference is in-app purchases: IO Mail at none against Sticker Calendar's 2. IO Mail also leads on ads (none vs shown) and device support (3 vs 1). On price, update cadence 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
Both are free to download. Sticker Calendar sells 2 in-app purchases, starting at $0.99 per month. IO Mail asks for nothing beyond the download.
Sticker Calendar ships an update every 2 weeks, IO Mail weekly. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.
| Parameter | Sticker Calendar | IO Mail |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (68 ratings) — better | — |
| Positive reviews | 27.6% of reviews | — |
| Number of ratings | 68 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 115 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Nooon LLC | Ali Kemal Celebioglu |
In-app purchases
Sticker Calendar
- Ad-Free Premium (1 month)7 Days trial$0.991 Month
- Ad-Free Premium (1 year)7 Days trial$7.991 Year
IO Mail
No in-app purchases









