Recall vs IO Mail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Recall
This app creates a personal knowledge base by summarizing online content like videos, articles, and podcasts. It automatically categorizes and links saved summaries, aiding in content discovery and connection. It also employs spaced repetition and active recall techniques to enhance long-term knowledge retention.
- Summarize any online content
- Save summaries to personal knowledge base
- Automatic categorization of summaries
- Automatic linking of related content
- Spaced repetition reviews
- Active recall testing
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Every AI gives you the same answers. Recall gives you yours. Join over 500K professionals, students and lifelong learners who are saving hours and turning their knowledge into their edge. One living space for your knowledge and the AI model of your choice. Save what matters, write what you think. Over time, you curate an AI that knows what you know. SAVE, SUMMARIZE & ORGANIZE INSTANTLY Share YouTube videos, podcasts, articles, PDFs, TikToks, recipes, and more with the Recall app. We do the rest. AGENTIC AI CHAT Ask questions across your entire knowledge base, search the internet, or combine both in one conversation. Choose your AI model. Switch models mid conversation. No lock in. LISTEN MODE Turn any content into a summary you can listen to in a custom voice you create. Learn on the go, your way. AUTOMATIC ORGANIZATION See how everything you've saved connects. Your content is automatically categorized and linked, no manual filing. Explore your knowledge visually and discover relationships you didn't know existed. QUIZ & RETAIN Stop doom scrolling and start learning. Generate quizzes on any content. Challenge friends with public quizzes. Spaced repetition and active recall resurface what you've saved at optimal intervals to lock it into long-term memory. BUILT FOR POWER USERS Bulk summarize, tag, connect, and generate quizzes at scale. API and MCP access lets you connect your knowledge base to any other AI tool. CROSS-DEVICE SYNC Start on mobile, finish on desktop. Don't break your workflow.
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 update cadence: IO Mail at daily against Recall's every 3 weeks. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Recall ships an update every 3 weeks, IO Mail daily. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.
| Parameter | Recall | IO Mail |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (67 ratings) — better | — |
| Positive reviews | 53.5% of reviews | — |
| Number of ratings | 67 — better | — |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 81 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Richards | Ali Kemal Celebioglu |
In-app purchases
Recall
No in-app purchases
IO Mail
No in-app purchases









