# Sandboxx vs Ulysses

The clearest difference is price: Sandboxx at Free against Ulysses's $4.99. Sandboxx also leads on in-app purchases (none vs 3) and ratings volume (180K vs 1). Ulysses's advantage is device support (5 vs 2). On rating, ads and iOS requirement there is nothing between them.

Sandboxx is free to download; Ulysses costs $4.99 up front. Ulysses sells 3 one-off in-app purchases. Sandboxx asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Sandboxx against 5.0 for Ulysses. That said, the two scores are not equally well evidenced: Sandboxx has 180K ratings behind it against 1, so its average is the more settled of the two.

Sandboxx ships an update every 10 days, Ulysses every 2 months. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Sandboxx | Ulysses |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.9 (180K ratings)](https://appshunter.io/ios/app/sandboxx/id912636512/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ulysses/id6789352921/reviews)** |
| Number of ratings | **180K** | 1 |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#101** | — |
| Size | 122 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Sandboxx, Inc.](https://appshunter.io/developer/912636515) | [Hessam Zahedi](https://appshunter.io/developer/6785146214) |

## What reviewers say

### Sandboxx

[App page](https://appshunter.io/ios/app/sandboxx/id912636512)

**Currently charting:** #101 Top Free · Lifestyle (US App Store)

Easily send digital letters, photos, and gift cards to service members in basic training and beyond. Receive weekly training updates and access military news and products. Developed by veterans to support the military community.

**Highlights:** Digital letter writing, Overnight shipping, Letter tracking, Weekly training updates, Military news, Gift card options, Veteran support staff

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Overnight delivery
- 📨 Convenient letter writing
- 📷 Ability to include photos
- 📝 Provided stationery and return postage
- 📢 Weekly updates on recruit's training

**What reviewers complain about**

- 💰 Expensive per letter
- 🐛 Frequent app crashes and bugs
- 🕰️ Delays in letter delivery
- 🔍 Difficulty finding recruit's address
- 🗓️ Outdated weekly updates

**Reported bugs**

- Login issues and password reset problems
- Inconsistent letter delivery tracking
- Incorrect recruit information entered by Sandboxx

**Requested features**

- Allow editing of letters before sending
- Increase photo upload limit
- Provide refund or credit expiration policy
- Improve in-app search and address management
- Sync weekly updates with recruit's actual schedule


### Ulysses

[App page](https://appshunter.io/ios/app/ulysses/id6789352921)

This journal app helps you build self-control by reflecting on daily temptations and the strategies used to overcome them. It offers guided breathing exercises and insights into what works for you, without any pressure of streaks.

**Highlights:** Nightly self-control journaling, Guided breathing exercises, Insight into effective strategies, No streak tracking, Cultural ropes exploration, Apple Watch integration, iCloud sync

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip — A coil of rope | $2.99 | one-time |
| Tip — A new sail | $6.99 | one-time |
| A ship for the fleet | $14.99 | one-time |


## Frequently asked questions

### Is Sandboxx free?

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

### Is Ulysses free?

Ulysses costs $4.99, and also offers in-app purchases.

### Which has better reviews, Sandboxx or Ulysses?

Ulysses is rated higher. Sandboxx averages 4.9 out of 5 from 180K ratings, while Ulysses averages 5.0 from 1 ratings.

### Do Sandboxx or Ulysses have ads?

Neither Sandboxx nor Ulysses shows ads.

### Which is updated more often, Sandboxx or Ulysses?

Sandboxx ships an update every 10 days, and Ulysses every 2 months. Most recently, Sandboxx was updated on October 22, 2026 and Ulysses on October 11, 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.*