# strong room vs Add Watermark+

The clearest difference is price: Add Watermark+ at Free against strong room's $0.99. Add Watermark+ also leads on update cadence (every 3 weeks vs every 3 months). strong room's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Add Watermark+ is free to download; strong room costs $0.99 up front. Add Watermark+ sells 1 one-off in-app purchase. strong room asks for nothing beyond the download.

strong room ships an update every 3 months, Add Watermark+ every 3 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | strong room | Add Watermark+ |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/strong-room/id945235429/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 1 MB | 2 MB |
| Requires iOS | 17.6 | **17.2** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christopher King](https://appshunter.io/developer/364927144) | [Muhammed Efdal incesu](https://appshunter.io/developer/1748859357) |

## What reviewers say

### strong room

[App page](https://appshunter.io/ios/app/strong-room/id945235429)

Securely store and manage all your passwords, PINs, and account details in one organized place. Features encryption, custom fields, and private browsing for quick access to your online accounts.

**Highlights:** Password and secret storage, Custom fields and notes, Categorization and tagging, Secure private browsing, Password autofill (iOS 12+), Data export and import

**Features:** Vision Pro support

**In-app purchases:** none


### Add Watermark+

[App page](https://appshunter.io/ios/app/add-watermark-plus/id6657986141)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Watermark Lifetime Premium | $2.99 | one-time |


## Frequently asked questions

### Is strong room free?

strong room costs $0.99, with no in-app purchases.

### Is Add Watermark+ free?

Add Watermark+ is free to download, with in-app purchases available.

### Do strong room or Add Watermark+ have ads?

Neither strong room nor Add Watermark+ shows ads.

### Which is updated more often, strong room or Add Watermark+?

strong room ships an update every 3 months, and Add Watermark+ every 3 weeks. Most recently, strong room was updated on November 1, 2026 and Add Watermark+ on November 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.*