Genlink vs Vnav4+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Genlink
Receive instant alerts when your generator experiences a failure. This application provides convenient generator monitoring directly on your mobile device.
- Generator monitoring
- Push notifications for failures
- Real-time alerts
- Mobile access
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Generator monitoring now at your fingertips. Get push-notifications as soon as your generator fails.
Vnav4+
This navigation app offers four specialized calculators for vertical flight path management. It includes tools for general climb/descent rates, instrument procedure descent angles, obstacle departure climb rates, and top of descent calculations.
- Generic rate of climb calculator
- Generic rate of descent calculator
- Instrument procedure descent angle calculator
- Obstacle departure rate of climb calculator
- Top of descent calculator
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This is a Vertical Navigation app. it has four different climb or descent calculators. A generic rate of climb and rate of descent calculator. A rate of of descent calculator for those Instrument procedures where there is a published vertical descent angle. An obstacle departure rate of climb calculator. And, a top of descent calculator.
Screenshots
Verdict
The clearest difference is update cadence: Vnav4+ at daily against Genlink's every 7 months. On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Genlink against 5.0 for Vnav4+. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Genlink ships an update every 7 months, Vnav4+ daily. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.
| Parameter | Genlink | Vnav4+ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 7 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 121 MB | 5 MB |
| Age rating | 4+ | 17+ |
| Developer | Carolina Generator Sales, Service and Rental, Inc | William Downing |
Customer experience
Genlink
Vnav4+
In-app purchases
Genlink
No in-app purchases
Vnav4+
No in-app purchases









