Noise Patrol App vs Crypto String
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Noise Patrol App
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Noise Patrol The definitive measurement solution for stationary exhaust noise testing Noise Patrol provides an all-in-one, easy-to-use system designed for automatic measurement of exterior exhaust noise from road vehicles under stationary conditions, including simultaneous, fully integrated RPM detection. The system supports various other RPM detection solutions as required by local legislation or preference (AVL, OBDII direct interface, β¦). Measurements are performed completely according to ISO 5130 standard and SLM is IEC61672 Class 1 compliant. Adaptation to local legislations or directives is possible and can also be locked so that only a master user can perform these changes. Capabilities: - Exterior exhaust noise level measurement of motorcycles, cars, trucks and mopeds under stationary conditions (engine sweep test) with integrated RPM measurement control Uses: - Realβworld, onβsite testing: Vehicle noise inspectors and police officers - Exhaust R&D and production testing: Integrating in the development or production test process for motor vehicle exhaust systems - Car, motorcycle or truck production line testing: Performing final checks prior to customer delivery
Crypto String
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Crypto String is the ultimate secure text encryption app using military-grade AES-256-GCM with authentication. Protect your sensitive information with powerful encryption and Base64 encoding β all 100% offline and private. Core Features β’ AES-256-GCM Encryption β Military-grade algorithm with custom keys for unique results β’ Base64 Encode/Decode β Fast and reliable for data transmission and storage β’ File Import β Directly import text/keys from local files or iCloud Drive β’ Smart Key Management β Import keys + eye-icon toggle to view/hide safely β’ History Records β Auto-save last 10 operations with key hints (only first 4 chars) β’ Multilingual Interface β Automatic language switching β’ Dark Mode + iOS Native β Built with Apple CryptoKit for maximum security Security First β’ 100% Local Processing β Nothing uploaded to cloud β’ No data collection, no accounts, no tracking β’ Keys never stored in plain text β’ One-time purchase, no ads, no subscriptions Perfect for protecting passwords, notes, private messages, or business data. Simple, fast, and truly private. Download Crypto String now and encrypt with confidence!
Screenshots
Verdict
The clearest difference is price: Noise Patrol App at Free against Crypto String's $0.99. Noise Patrol App also leads on iOS requirement (15.6 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Noise Patrol App is free to download; Crypto String costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Noise Patrol App ships an update every 5 months, Crypto String every 4 months. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.
| Parameter | Noise Patrol App | Crypto String |
|---|---|---|
| Price | Free β better | $0.99 |
| Update frequency | Every 5 months | Every 4 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 β better | 18.0 |
| Further details β not scored | ||
| Size | 23 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | IMS Merilni sistemi d.o.o. | Xu Wang |
In-app purchases
Noise Patrol App
No in-app purchases
Crypto String
No in-app purchases
Questions
Is Noise Patrol App free?
Is Crypto String free?
Do Noise Patrol App or Crypto String have ads?
Which is updated more often, Noise Patrol App or Crypto String?
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