# TDDD vs Must

The clearest difference is in-app purchases: Must at none against TDDD's 2. Must also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). TDDD's advantage is update cadence (every 5 days vs every 2 months) and review sentiment (100% vs 90%). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. TDDD sells 2 in-app purchases, starting at $0.99 per year. Must asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for TDDD against 4.0 for Must. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 100% of TDDD's written reviews are positive against 90% of Must's.

TDDD ships an update every 5 days, Must every 2 months. The most recent releases landed on August 20, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | TDDD | Must |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/tddd-to-do-do-do/id6443962759/reviews) | [4.0 (1 ratings)](https://appshunter.io/ios/app/must/id6479213927/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 90.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 52 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SEUNG YEOP YEOM](https://appshunter.io/developer/1510321115) | [Jichan Hwang](https://appshunter.io/developer/1735193590) |

## What reviewers say

### TDDD

[App page](https://appshunter.io/ios/app/tddd-to-do-do-do/id6443962759)

Easily manage your tasks with this straightforward to-do list application. Get timely reminders and organize your tasks with customizable categories. Sync your data across devices for seamless access.

**Highlights:** Easy to-do addition, Customizable categories with colors and emojis, Scheduled notifications, Lock settings, iCloud syncing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual plan | $0.99 | per year |
| Lifetime plan | $2.99 | one-time |


### Must

[App page](https://appshunter.io/ios/app/must/id6479213927)

Manage all your schedules quickly and easily with this intuitive app. It offers convenient schedule notifications, a dark theme option, and a task monitor to keep track of your to-dos. Organize your tasks systematically using the Eisenhower Matrix and color-coded tags.

**Highlights:** Eisenhower Matrix for systematic task management, Convenient schedule notifications, Home screen widgets for quick access, Customizable color tags for event classification, Task monitor with filtering options, Dark theme support

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

**In-app purchases:** none


## Frequently asked questions

### Is TDDD free?

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

### Is Must free?

Must is free to download, with no in-app purchases.

### Which has better reviews, TDDD or Must?

TDDD and Must are both rated 4.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do TDDD or Must have ads?

TDDD shows ads; Must does not.

### Which is updated more often, TDDD or Must?

TDDD ships an update every 5 days, and Must every 2 months. Most recently, TDDD was updated on August 20, 2026 and Must on August 26, 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.*