# Sandboxx vs Gradeyes

The clearest difference is in-app purchases: Sandboxx at none against Gradeyes's 2. Sandboxx also leads on chart position (#105 vs unranked). Gradeyes's advantage is iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Gradeyes sells 2 in-app purchases, starting at $29.99 per month. Sandboxx asks for nothing beyond the download.

## The numbers

| Metric | Sandboxx | Gradeyes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (174K ratings)](https://appshunter.io/ios/app/sandboxx/id912636512/reviews)** | — |
| Number of ratings | **174K** | — |
| Positive reviews | 73.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#105** | — |
| Size | 120 MB | 33 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sandboxx, Inc.](https://appshunter.io/developer/912636515) | [Pye Lin](https://appshunter.io/developer/1896537419) |

## What reviewers say

### Sandboxx

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

**Currently charting:** #105 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- 🗓️ Outdated weekly updates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


### Gradeyes

[App page](https://appshunter.io/ios/app/gradeyes/id6768822389)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $29.99 | per month |
| Single Scan | $0.99 | one-time |


## Frequently asked questions

### Is Sandboxx free?

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

### Is Gradeyes free?

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

### Do Sandboxx or Gradeyes have ads?

Neither Sandboxx nor Gradeyes shows ads.

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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.*