RF Link vs DVR Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RF Link
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RF Link brings professional-grade RF path, radio line-of-sight, Fresnel zone and path-loss analysis to your iPhone, using the Longley-Rice (ITM) irregular terrain propagation model. Built for telecom engineers, RF planners, broadcasters and wireless network designers, it delivers accurate point-to-point link evaluation for frequencies from 20 MHz to 20 GHz. Whether you are planning microwave links, Wi-Fi backhaul, LOS radio links or long-distance wireless communication, RF Link predicts terrain impact, path loss and link feasibility in seconds. KEY FEATURES ITM Longley-Rice model (20 MHz - 20 GHz) - Industry-standard Irregular Terrain Model - Accurate diffraction, scatter and line-of-sight predictions - Multiple reliability and confidence combinations Radio line-of-sight analysis - Geometric LOS check - Earth-curvature LOS with adjustable k-factor - 60% first Fresnel zone clearance - Minimum clearance at obstruction points - Suggested tower height increase Terrain elevation profiling - High-resolution elevation sampling - Plots showing terrain, curvature, LOS and Fresnel zones - Zoomable charts you can share Coverage heatmap - Signal-strength coverage area around a transmitter - Rendered over real terrain on the map Path loss and link budget - Path-loss prediction - EIRP, RSSI, SNR and link margin - Clear pass, warning and fail indicators Clean, fast interface - Map-based transmitter and receiver selection - PDF report export - Plot image sharing and saving IDEAL FOR - Wireless network planners - Microwave and LOS link engineers - UAV and drone communication designers - Amateur radio operators - Students learning RF and propagation models RF LINK PRO Every install includes a number of free calculations. RF Link Pro removes the limit, and comes two ways: - Monthly subscription: unlimited path profiles and coverage maps, billed monthly, renewing automatically. - Lifetime: a one-time purchase, no subscription. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically at the same price and period unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it any time in your Apple Account settings. Privacy Policy: https://pinchiyadav.github.io/RF_Link_App-privacypolicy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DVR Timer
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تطبيق DVR-Timer هو أداة متخصصة ودقيقة صُممت لحل مشكلة شائعة تواجه فنيي كاميرات المراقبة، المحققين، ومراجعي التسجيلات: حساب فرق التوقيت بين الوقت الفعلي والوقت المسجل على أجهزة الـ DVR. غالباً ما تتأخر أو تتقدم ساعة أجهزة الـ DVR بمرور الوقت، مما يجعل مراجعة الأحداث مهمة صعبة وتحتاج لحسابات يدوية معقدة لضبط فارق الوقت. هنا يأتي دور DVR-Timer ليقوم بهذه المهمة بدلاً عنك في ثوانٍ معدودة. الميزات الرئيسية للتطبيق: • حساب دقيق وفوري: أدخل وقت الجهاز والوقت الفعلي وسيقوم التطبيق بحساب فارق التوقيت بدقة متناهية. • واجهة استخدام بسيطة: تصميم يركز على إنجاز المهمة بسرعة وسهولة دون أي تعقيدات. • تسجيل دخول مرن: ادخل إلى حسابك بأمان لحفظ بياناتك، أو استخدم التطبيق مباشرة كضيف. لا مزيد من الحسابات اليدوية المرهقة والأخطاء الواردة! حمل DVR-Timer الآن واحصل على النتيجة الدقيقة في ثوانٍ.
Screenshots
Verdict
The clearest difference is in-app purchases: DVR Timer at none against RF Link's 2. On price, 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
Both are free to download. RF Link sells 2 in-app purchases, starting at $1.99 per month. DVR Timer asks for nothing beyond the download.
| Parameter | RF Link | DVR Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPod, Mac | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 47 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Yogesh Yadav | Ahmed Mohamed |
In-app purchases
RF Link
- RF Link Pro Monthly$1.991 Month
- RF Link Pro Lifetime$6.99
DVR Timer
No in-app purchases









