# Secret Vault·Private Locker vs DevStudio

The clearest difference is in-app purchases: DevStudio at none against Secret Vault·Private Locker's 3. DevStudio also leads on iOS requirement (12.0 vs 15.0). Secret Vault·Private Locker's advantage is update cadence (every 10 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Secret Vault·Private Locker sells 3 in-app purchases, starting at $0.99 per 3 months. DevStudio asks for nothing beyond the download.

Secret Vault·Private Locker ships an update every 10 days, DevStudio monthly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Secret Vault·Private Locker | DevStudio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/secret-vaultprivate-locker/id1241120027/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 131 MB | 126 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [景元 肖](https://appshunter.io/developer/1184757516) | [成林 程](https://appshunter.io/developer/1613443568) |

## What reviewers say

### Secret Vault·Private Locker

[App page](https://appshunter.io/ios/app/secret-vaultprivate-locker/id1241120027)

Securely hide photos, videos, and documents with triple-layer protection. Features include app locking, file encryption, icon disguise, and an intruder selfie function. Manage all file formats with a built-in media player, editor, and transfer options.

**Highlights:** Triple-layer security, Icon disguise, Intruder selfie, Universal format support, HD media player, WiFi file transfer, Built-in Markdown editor

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quarterly Membership | $0.99 | per 3 months |
| Annual Membership | $3.99 | per year |
| 永久会员 | $4.99 | one-time |


### DevStudio

[App page](https://appshunter.io/ios/app/devstudio/id1672895323)

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

**In-app purchases:** none


## Frequently asked questions

### Is Secret Vault·Private Locker free?

Secret Vault·Private Locker is free to download, with in-app purchases available.

### Is DevStudio free?

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

### Do Secret Vault·Private Locker or DevStudio have ads?

Neither Secret Vault·Private Locker nor DevStudio shows ads.

### Which is updated more often, Secret Vault·Private Locker or DevStudio?

Secret Vault·Private Locker ships an update every 10 days, and DevStudio monthly. Most recently, Secret Vault·Private Locker was updated on October 29, 2026 and DevStudio on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*