HomeAppsProductivityAir VentApps like Air Vent Here are some great alternatives to Air Vent by Air Vent, Inc. : Simple roofing calculator ★4.1 Rapid Vent Calculator ★4.9 Roofing Calculator ★3.8 RoofSnap ★3.7 Rafter estimator for roofing ★4.3 Roof Estimator ★5.0 RedX Roof Builder - 3D Design ★3.3 Cool Bubble Level (Clinometer) ★4.5 Bubble level ★4.4 Bubble Level Pro ★4.8 GPS Area Measure - Mapulator ★4.2 Spirit Level ★4.4 Psychrometric air - a rhoAir ★4.0 Protractor + Angle Finder - AR ★4.2 Angle Finder - Level Tool App ★4.1 AirLab: Air Density & Density ★4.6