ZapTodo vs Stack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZapTodo
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Your thoughts move faster than your thumbs. ZapTodo is the AI-powered to-do app that captures tasks as fast as you think them. Speak naturally, type when you prefer, or do both. Either way, you get organized tasks with due dates, priorities, and reminders. No friction. Ramble for 10 seconds. Get 5 organized tasks. That's it. → Speak tasks naturally. Say: "Call the dentist tomorrow, grab milk after work, and finish the budget by Friday." Get: 3 separate tasks, each with the right due date, time, and priority. Instantly. → Type when you want to. ZapTodo is a complete daily planner whether you speak or type. Multi-task dictation for when you're walking, driving, or just thinking out loud. Quick-add typing for when you're at your desk. → Why ZapTodo: - Multi-task dictation in one go (most apps capture one task at a time) - AI that understands dates, priorities, and recurrence from natural speech - End-to-end encrypted. Your tasks stay yours - Works offline, syncs when you're back online - 22 languages: English, Spanish, Arabic, Hindi, Chinese, and more → A complete daily planner. - Smart reminders that actually notify you - Recurring tasks for habits and routines - Subtasks, priorities, notes, categories - Calendar and timeline views - Home screen widget - Import from Todoist, Google Tasks, Apple Reminders → Built for iOS. Syncs across iPhone and iPad. Under 60MB. Downloads in seconds. → Privacy first. End-to-end encrypted. No ads. No tracking. Your tasks are never sold. Capture tasks the way you think. Fast, organized, yours. Premium unlocks advanced features with a 7-day free trial. Privacy Policy: https://zaptodo.oryzenhub.com/privacy-policy Terms of Use (EULA): https://zaptodo.oryzenhub.com/terms-of-service Questions? https://zaptodo.oryzenhub.com/contact
Stack
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Stack is a clean, focused task and reminder app designed to help you manage your day without getting in the way. Built around a clean, minimal interface — with beautifully crafted Dark and Light modes. • Add tasks and reminders with due dates, times, repeat schedules, notes and priority levels. • Track and complete your tasks directly from your Home and Lock Screens—no need to open the app. • Overdue items from today remain visible until they’re completed or rescheduled. • Search through your items with the advanced search and filter tools to quickly find specific tasks, reminders, or priorities. • The app features in-app highlights that keep you aware of upcoming tasks in a clear and effective way. • A real-time stats bar at the top of your screen shows your daily progress: how many tasks you have today, how many you've completed, and what is overdue. • Easily import pending reminders from Apple Reminders. • Sync and add items to Apple Calendar. • Your tasks, reminders, stats and ideas never leave your device. UNLOCK STACK PREMIUM Take your productivity to the next level with our new in-app subscription, which unlocks: • The Brainstorm Canvas: A brand new, interactive workspace. Use the visual canvas to drag, drop, and link ideas together, then effortlessly import groups of thoughts directly into your daily tasks. You can also export your map as an image to share with others. • Widgets & Live Activities: Full access for the interactive Home Screen-Lock Screen widgets, and Live Activities. • Advanced Statistics: Tap the stats bar to unlock powerful cumulative graphs, streak tracking, and detailed analytics. • Deep Customization: Personalize the app with custom accent colors, sheet colors and even your own background images. • Sync more of your daily items and check off right from your wrist. • Unlimited Storage: No limits on how many tasks and reminders you can save on your own device. About billing of Premium: • Payment will be charged to your Apple ID account at the confirmation of purchase. • The subscription automatically renews unless canceled at least 24 hours before the end of the current billing period. • Your account may be charged for renewal within 24 hours prior to the end of the current period. • You can manage and cancel your subscriptions by going to your App Store account settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Enjoy using Stack. For any issues or feedback: https://fadizaid.com/stack/en/support Privacy Policy: https://sites.google.com/view/stack-privacy-policy/ Terms of use: https://sites.google.com/view/stack-terms-of-use/
Screenshots
Verdict
The clearest difference is update cadence: ZapTodo at every 2 days against Stack's every 8 days. ZapTodo also leads on iOS requirement (14.0 vs 16.4). 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. ZapTodo sells 3 in-app purchases, starting at $1.99 per 7 days and Stack sells 2 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.
ZapTodo ships an update every 2 days, Stack every 8 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.
| Parameter | ZapTodo | Stack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 14.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 85 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Yusof Feroz Yusof Ahmed Khan | Fadi Zaid |
In-app purchases
ZapTodo
- Premium Weekly$1.997 Days
- Premium Monthly3 Days trial$2.991 Month
- Premium Yearly7 Days trial$24.991 Year
Stack
- Monthly Premium$1.491 Month
- Yearly Premium3 Days trial$14.991 Year









