App Lock vs Vienna SOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
App Lock
Secure your sensitive applications and personal data with this privacy tool. Easily lock any app to prevent unauthorized access and keep your information out of sight from prying eyes. Enjoy enhanced device security and peace of mind.
- Lock any application
- Hide sensitive apps
- Block websites
- Intuitive interface
- Prevent unauthorized access
- Enhance device privacy
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App Lock is a privacy app designed to help keep your sensitive apps private and secure on your device. With App Lock, you can easily block any app you want, ensuring that you remain private and out of sight from prying eyes. The app features an intuitive and user-friendly interface that allows you to quickly and easily select the apps you want to lock. Once an app has been locked, nobody will be able to access your private data. App Lock is the perfect solution for anyone looking to ensure more privacy and security on your device. * In order to use App Lock you need to purchase the Lilucat Pro which is an annual service that costs 29.99$. Payment will be charged to iTunes Account at confirmation of purchase and auto-renews at the same price unless disabled in iTunes Account Settings at least 24 hours before the end of the current period. Your subscription can be managed in your iTunes Account Settings. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Links Terms of Service: https://applock.lilucat.com/legal/terms Privacy: https://applock.lilucat.com/legal/privacy
Vienna SOS
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Understand a letter in German and prepare your next step. Vienna SOS helps you review documents, explain your situation and prepare a draft response. Choose Basic or Premium analysis. Review every draft before sending it. For Vienna residents, newcomers and visitors. Import a document when needed, describe your question, select a tier and report language, then explicitly start the analysis. The report provides explanations, suggested next steps and sources. Interface and report languages: English, German, Russian, Ukrainian, Turkish, Arabic, Simplified Chinese and Hindi. Purchases: one-off Basic and Premium analyses and monthly subscriptions through Apple. Basic includes 4 analyses per month; Premium includes 5. Prices are displayed before purchase. Subscriptions renew automatically; cancel in Apple settings. Unused monthly analyses do not roll over. Deleting your account does not cancel an Apple subscription. Privacy: files are stored with Hetzner in Germany. With your separate permission, Microsoft Azure OpenAI in the EU receives your question, case messages, extracted text from selected documents, any personal data remaining in that text, case metadata and sources to prepare and check the report. Uploading a file or paying does not itself start AI processing. Account deletion is available in the app. For adults aged 18 and over. Health cases and medical data are not supported. Remove unnecessary personal data before uploading. AI can make mistakes: check the cited sources. Vienna SOS is an independent service, not a government body or emergency service. It provides general information, not legal, tax, financial or medical advice. Support: consulting@elshanmusayev.com https://viennasos.at/en/help https://viennasos.at/en/privacy https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Vienna SOS at none against App Lock's shown. Vienna SOS also leads on update cadence (daily vs fortnightly). On price, in-app purchases, 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
Both are free to download. App Lock sells 6 in-app purchases, starting at $4.99 per month and Vienna SOS sells 4 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
App Lock ships an update fortnightly, Vienna SOS daily. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | App Lock | Vienna SOS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (5.3K ratings) — better | — |
| Positive reviews | 57.9% of reviews | — |
| Number of ratings | 5.3K — better | — |
| Update frequency | Fortnightly | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 43 MB | 32 MB |
| Age rating | 4+ | 17+ |
| Developer | Lilucat | Elshan Musayev |
Bugs and requests
App Lock
Reported bugs
3 issues- Buttons at the bottom of the screen are inaccessible on some devices
- Prompts are not legible with larger font settings
- Locked apps can still be accessed by restarting the phone
Requested features
4 requests- Allow concealing the app locker
- Add scheduling/time-based locking
- Provide separate unlock code from phone passcode
- Improve usability when Dynamic Island is in use
Vienna SOS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
App Lock
- App Lock$4.991 Month
- App Lock3 Days trial$7.997 Days
- App Lock2 variants$9.991 Month
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- App Lock$14.991 Year
- App Locker for iPhone$29.991 Year
- App Lock$59.99
Vienna SOS
- Basic Monthly$12.991 Month
- Premium Monthly$34.991 Month
- Basic — one analysis$3.99
- Premium — one analysis$11.99









