# Sandboxx vs CurlCue

The clearest difference is in-app purchases: Sandboxx at none against CurlCue's 2. Sandboxx also leads on chart position (#98 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CurlCue sells 2 in-app purchases, starting at $4.99 per month. Sandboxx asks for nothing beyond the download.

Sandboxx ships an update every 10 days, CurlCue weekly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sandboxx | CurlCue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (180K ratings)](https://appshunter.io/ios/app/sandboxx/id912636512/reviews)** | — |
| Number of ratings | **180K** | — |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#98** | — |
| Size | 122 MB | 61 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sandboxx, Inc.](https://appshunter.io/developer/912636515) | [Jeovany Gutierrez](https://appshunter.io/developer/6778923165) |

## What reviewers say

### Sandboxx

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

**Currently charting:** #98 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- 🗓️ Outdated weekly updates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


### CurlCue

[App page](https://appshunter.io/ios/app/curlcue/id6810575096)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CurlCue Pro Monthly | $4.99 | per month |
| CurlCue Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is Sandboxx free?

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

### Is CurlCue free?

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

### Do Sandboxx or CurlCue have ads?

Neither Sandboxx nor CurlCue shows ads.

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

Sandboxx ships an update every 10 days, and CurlCue weekly. Most recently, Sandboxx was updated on October 27, 2026 and CurlCue on October 24, 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.*