# Parallel Accounts・Dual Space vs Sterna Vault

The clearest difference is in-app purchases: Sterna Vault at none against Parallel Accounts・Dual Space's 6. Sterna Vault also leads on update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Parallel Accounts・Dual Space sells 6 in-app purchases, starting at $1.99 per 7 days. Sterna Vault asks for nothing beyond the download.

Parallel Accounts・Dual Space ships an update every 4 months, Sterna Vault every 3 weeks. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Parallel Accounts・Dual Space | Sterna Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (280 ratings)](https://appshunter.io/ios/app/parallel-accountsdual-space/id6474973598/reviews)** | — |
| Number of ratings | **280** | — |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 68 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marius Ardeleanu](https://appshunter.io/developer/1864906471) | [Sterna Security Devices Private Limited](https://appshunter.io/developer/1751436158) |

## What reviewers say

### Parallel Accounts・Dual Space

[App page](https://appshunter.io/ios/app/parallel-accountsdual-space/id6474973598)

This app lets you run multiple instances of the same application on a single device. Easily manage separate work and personal profiles, social media, or game accounts in a secure, private space. Switch between accounts instantly and manage notifications without conflict.

**Highlights:** Clone apps for dual accounts, Private and secure secondary space, Fast account switching, Manage notifications from all accounts, Intuitive and clean interface, Optional passcode/biometric lock

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Safely organize your accounts | $1.99 | per 7 days |
| Dual Accounts | $2.99 | per 7 days |
| Safely organize your accounts | $5.99 | per 7 days |
| Manage accounts effortlessly | $5.99 | per 7 days |
| Easily switch between accounts | $19.99 | per month |
| Easily switch between accounts | $39.99 | per year |


### Sterna Vault

[App page](https://appshunter.io/ios/app/sterna-vault/id6755238912)

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

**In-app purchases:** none


## Frequently asked questions

### Is Parallel Accounts・Dual Space free?

Parallel Accounts・Dual Space is free to download, with in-app purchases available.

### Is Sterna Vault free?

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

### Do Parallel Accounts・Dual Space or Sterna Vault have ads?

Neither Parallel Accounts・Dual Space nor Sterna Vault shows ads.

### Which is updated more often, Parallel Accounts・Dual Space or Sterna Vault?

Parallel Accounts・Dual Space ships an update every 4 months, and Sterna Vault every 3 weeks. Most recently, Parallel Accounts・Dual Space was updated on October 20, 2026 and Sterna Vault 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.*