# To Do Machine vs Trayzero

The clearest difference is ratings volume: To Do Machine at 11 against Trayzero's 1. Trayzero's advantage is iOS requirement (15.0 vs 17.6). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. To Do Machine sells 6 in-app purchases, starting at $7.99 per month and Trayzero sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for To Do Machine against 5.0 for Trayzero. That said, the two scores are not equally well evidenced: To Do Machine has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

To Do Machine ships an update every 2 weeks, Trayzero monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | To Do Machine | Trayzero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (11 ratings)](https://appshunter.io/ios/app/to-do-machine/id6770824708/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/trayzero/id6771756447/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Freemium | Freemium |
| Size | 39 MB | 39 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Electric Lantern LLC](https://appshunter.io/developer/1059775537) | [Feipeng Liu](https://appshunter.io/developer/1891204520) |

## What reviewers say

### To Do Machine

[App page](https://appshunter.io/ios/app/to-do-machine/id6770824708)

Design your ideal productivity system with this highly customizable task manager. It adapts to your unique workflow using natural language commands and AI organization. Seamlessly syncs across Mac and iOS devices.

**Highlights:** Natural language task creation, AI-powered organization, Customizable views (list, kanban, calendar), Invent custom statuses and fields, Two-way calendar sync, Instant cross-device sync, Personalized productivity system assessment

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $7.99 | per month |
| To Do Machine Max | $19.99 | per month |
| Standard - 3 Months | $23.99 | per 3 months |
| Welcome Price | $44.99 | per year |
| To Do Machine - Annual | $69.99 | per year |
| To Do Machine Max - Annual | $199.99 | per year |


### Trayzero

[App page](https://appshunter.io/ios/app/trayzero/id6771756447)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter (Monthly) | $0.99 | per month |
| Supporter (Yearly) | $7.99 | per year |
| Small Tip | $1.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is To Do Machine free?

To Do Machine is free to download, with in-app purchases available.

### Is Trayzero free?

Trayzero is free to download, with in-app purchases available.

### Which has better reviews, To Do Machine or Trayzero?

To Do Machine and Trayzero are both rated 5.0 out of 5 on the App Store, from 11 and 1 ratings respectively.

### Do To Do Machine or Trayzero have ads?

Neither To Do Machine nor Trayzero shows ads.

### Which is updated more often, To Do Machine or Trayzero?

To Do Machine ships an update every 2 weeks, and Trayzero monthly. Most recently, To Do Machine was updated on November 5, 2026 and Trayzero on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*