Comparison

strong room vs Add Watermark+

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

strong room

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
Read full description

If you're looking at this, then you already know that you have way too many user names, passwords, PINs, access codes, and account numbers to remember on your own. You need a simple and safe way to put all of these in one place and then be able to get to them quickly when you need them. You found it. strong room uses industry best practices for encryption and security to protect your secrets from unauthorized access and presents and manages them within a simple, flexible, and intuitive user-interface. SECRET TYPES strong room doesn't just store passwords. You can store any type of user login, email account, credit card, debit card, access code, voicemail account, combination code, or client account. All in one place! CUSTOM FIELDS Each type of secret includes it's own specific set of fields for input, but you can add whatever else you need as a custom field, and there's a notes field too for all of those other details! CATEGORIES Organize your secrets by assigning them to one of the pre-defined categories or create your own categories and use them instead. TAGS Further categorize your items by assigning one or more 'tags' to associate them with things like 'work', or 'kids', or 'personal' and whatever other kind of tag that you need. FILTER AND SEARCH Use the assigned categories and tags to filter your secret list or find a secret quickly and easily by entering its name in the always-present search-field. SECURE PRIVATE BROWSING Assign a website to your secret and access the site directly from within the app, including quick access to the secret fields that you need for authentication. PASSWORD AUTOFILL Devices running iOS 12 or later with biometric authentication enabled for strong room can enable Password Autofill on the device and get access to strong room user logins directly from the standard iOS Password AutoFill mechanisms for websites and apps. DATA EXPORT AND IMPORT Securely export your stored secrets for backup purposes or for importing into another device. Super safe; super simple; and way less pricey than the other alternatives out there. Give strong room a try and you'll be glad that you did.

About

Add Watermark+

Features
Read full description

Protect your photos and showcase your brand with our Add Watermark App! Easily add custom watermarks, logos, or text to your images in just a few taps. Perfect for photographers, influencers, and businesses to safeguard their work.

Screenshots

strong room4 screens
Add Watermark+4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
strong room versus Add Watermark+: the parameters behind the verdict, then further details
Parameterstrong roomAdd Watermark+
Price$0.99Free — better
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.2 — better
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperChristopher KingMuhammed Efdal incesu

In-app purchases

None

strong room

No in-app purchases

1 purchases

Add Watermark+

One-time1
  • Add Watermark Lifetime Premium$2.99

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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