# Shadow OS vs Unseal

The clearest difference is rating: Unseal at 5.0 against Shadow OS's 4.8. Unseal also leads on update cadence (every 2 days vs every 6 days). Shadow OS's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Shadow OS sells 3 in-app purchases, starting at $9.99 per month and Unseal sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Unseal holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Shadow OS ships an update every 6 days, Unseal every 2 days. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Shadow OS | Unseal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/shadow-os/id6757407948/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unseal/id6760516533/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 2 days** |
| Monetization | Freemium | Freemium |
| Size | 52 MB | 43 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Phonix & Aura LLC](https://appshunter.io/developer/1866703420) | [ZACHARY ANDREW CHMAEL](https://appshunter.io/developer/1884794096) |

## What reviewers say

### Shadow OS

[App page](https://appshunter.io/ios/app/shadow-os/id6757407948)

This app helps you understand your personal patterns by tracking your choices, habits, and daily signals. It provides weekly and monthly insights into what connects, repeats, and changes in your behavior, offering a data-driven approach to self-awareness without dictating actions.

**Highlights:** Track daily signals and check-ins, Analyze habits and timing, Receive weekly and monthly reads, Explore Jung-inspired archetypes, Compare baseline to actual choices, View evidence behind insights

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shadow OS Premium | $9.99 | per month |
| Shadow OS Annual | $79.99 | per year |
| Shadow OS Lifetime | $129.00 | one-time |


### Unseal

[App page](https://appshunter.io/ios/app/unseal/id6760516533)

Write letters to your future self or anonymous strangers. Schedule delivery for your personal messages and discover honest words from others worldwide. Engage in themed events and collaborative letter chains.

**Highlights:** Write letters to future self, Schedule message delivery, Read anonymous letters from strangers, Exchange anonymous pen pal letters, Participate in themed letter events, Create group time capsules

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unseal Pro | $4.99 | per month |
| Unseal Pro | $29.99 | per year |


## Frequently asked questions

### Is Shadow OS free?

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

### Is Unseal free?

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

### Which has better reviews, Shadow OS or Unseal?

Unseal is rated higher. Shadow OS averages 4.8 out of 5 from 4 ratings, while Unseal averages 5.0 from 1 ratings.

### Do Shadow OS or Unseal have ads?

Neither Shadow OS nor Unseal shows ads.

### Which is updated more often, Shadow OS or Unseal?

Shadow OS ships an update every 6 days, and Unseal every 2 days. Most recently, Shadow OS was updated on October 6, 2026 and Unseal on October 13, 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.*