Trayzero vs Todio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trayzero
This app implements David Allen's Getting Things Done (GTD) methodology for task management. It offers a streamlined inbox, clarification flow, and organization into canonical GTD lists. Features include reminders, voice capture, and on-device data storage for enhanced privacy.
- GTD inbox and capture
- Clarify flow for processing tasks
- Organize into GTD lists
- Weekly Review wizard
- Engage tab by context/energy/time
- On-device data storage
- Voice and photo capture
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Trayzero brings David Allen's Getting Things Done (GTD) method to your iPhone. Free, no ads, no account, no sign-up. Your data lives on your device. Always. THE FIVE GTD STEPS, BUILT IN Capture - one tap, anywhere. A floating Capture button on every screen. Share anything from any app straight into your inbox. Voice-to-text for hands-free thoughts. A Home Screen widget for the fastest possible "add to inbox." Clarify - the killer flow. Process Inbox runs you through your captures one at a time, card-stack style. Each card walks the full GTD decision tree: actionable? Two-minute rule? Delegate? Single step or a project? When? Where? You hit inbox-zero faster than you thought possible. Organize - the canonical GTD lists. Inbox, Next Actions, Projects, Waiting For, Someday/Maybe, Calendar, Reference. Plus a real Project type with outcome, next-action warning, and Active / On Hold / Someday / Done / Dropped status. Seven default @-contexts you can extend (@phone, @computer, @errands, @home, @office, @anywhere, @waiting). Areas of Responsibility for the higher altitudes. Reflect - a Weekly Review wizard. A seven-step Friday review walks you through the canonical GTD pass: clear inbox, review next actions, check waiting-for, scan calendar, review someday/maybe, look at projects, set next week's intentions. Daily review supported too. Engage - do now. The Engage tab filters Next Actions by Context, Energy (low / medium / high), and Time Available (under 5m / 15m / 30m / 1h). Pull up the actions that match the moment you're in. REMINDERS THAT ACTUALLY WORK Due-date, defer-until, waiting-for follow-up, and weekly-review nudges fire as system notifications with action buttons - Done, Snooze, Move to Next Actions. Calendar two-way sync mirrors dated items into your system calendar. VOICE, PHOTOS, AUDIO Capture by voice. Attach photos or voice memos to any item. PRIVACY YOU DON'T HAVE TO THINK ABOUT - 100% on-device. SQLite under the hood. - No account, no servers, no analytics. - Crash reporting is opt-in and off by default. - Backup/restore as plain JSON: you own your data, you can take it anywhere. WHO IT'S FOR - GTD practitioners who want a clean, focused app that respects the method. - Anyone tired of cloud-syncing personal task data through someone else's servers. - People who want their tasks where their phone is - and nowhere else. Trayzero is an independent app inspired by the Getting Things Done methodology. It is not affiliated with, endorsed by, or sponsored by David Allen Company. "Getting Things Done" and "GTD" are trademarks of the David Allen Company. Terms of Use (EULA): https://trayzero.app/terms Privacy Policy: https://trayzero.app/privacy
Todio
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Most to-do apps started simple. Then came projects, labels, filters, integrations, and AI features — until opening the app felt like work itself. Todio does one thing: helps you capture and finish your tasks. HOW IT WORKS Add a task. Check it off when done. That's the core loop — fast, frictionless, and intentionally minimal. No onboarding flow, no tutorial, no subscription wall blocking basic features. KEY FEATURES • Clean, distraction-free design — nothing between you and your tasks • Quick task entry — add tasks in seconds • Reminders and due dates — stay on top of deadlines • Simple lists — organize without overcomplicating • 100% on-device — your tasks never leave your iPhone • No account required — open and start immediately NO SUBSCRIPTION. NO ADS. NO ACCOUNT. The biggest to-do apps charge monthly. Todio is a one-time purchase. Pay once, own it forever. Your tasks are yours — not stored on someone's server, not monetized, not analyzed. YOUR PRIVACY, RESPECTED Todio works completely on your device. No servers, no analytics, no account system. We never see your tasks, and we never will. The best to-do app is the one you actually use. Download Todio and start clearing your list today.
Screenshots
Verdict
The clearest difference is update cadence: Todio at every 2 weeks against Trayzero's monthly. 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. Trayzero sells 4 in-app purchases, starting at $0.99 per month and Todio sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Trayzero ships an update monthly, Todio every 2 weeks. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | Trayzero | Todio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 39 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Feipeng Liu | Taha KOYUTURK |
In-app purchases
Trayzero
- Supporter (Monthly)$0.991 Month
- Supporter (Yearly)$7.991 Year
- Small Tip$1.99
- Large Tip$9.99
Todio
- Todio Monthly$0.991 Month
- Todio Annual$6.991 Year









