# Seablue Directory vs One & Three

The clearest difference is in-app purchases: Seablue Directory at none against One & Three's 4. Seablue Directory also leads on iOS requirement (14.0.0 vs 17.6). One & Three's advantage is update cadence (daily vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. One & Three sells 4 one-off in-app purchases. Seablue Directory asks for nothing beyond the download.

Seablue Directory ships an update every 3 weeks, One & Three daily. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Seablue Directory | One & Three |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/one-and-three/id6744300646/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 4 MB |
| Requires iOS | **14.0.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Laurent Vienne](https://appshunter.io/developer/1723245908) | [Scott Curry](https://appshunter.io/developer/1214356980) |

## What reviewers say

### Seablue Directory

[App page](https://appshunter.io/ios/app/seablue-directory/id6503670112)

**Features:** macOS Compatibility

**In-app purchases:** none


### One & Three

[App page](https://appshunter.io/ios/app/one-and-three/id6744300646)

This productivity app helps you focus on your most important tasks with a simple, minimalist design. It limits your daily focus to one main task and up to three supporting tasks, reducing overwhelm and decision fatigue.

**Highlights:** Focus on one main task daily, Add up to three supporting tasks, Minimalist and calming design, Quick entry with no distractions, Simple gestures and intuitive flow, Reduces decision fatigue

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small | $1.99 | one-time |
| Medium | $4.99 | one-time |
| Large | $9.99 | one-time |
| Extra-Large | $24.99 | one-time |


## Frequently asked questions

### Is Seablue Directory free?

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

### Is One & Three free?

One & Three is free to download, with in-app purchases available.

### Do Seablue Directory or One & Three have ads?

Neither Seablue Directory nor One & Three shows ads.

### Which is updated more often, Seablue Directory or One & Three?

Seablue Directory ships an update every 3 weeks, and One & Three daily. Most recently, Seablue Directory was updated on October 8, 2026 and One & Three on October 4, 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.*