Its possible you are already using one or more of these… This list comes from Revit Modelling India:
Aconex Mobile 
As Aconex Mobile app is used for iPads, you can capture photos, audio and videos on project site and access and manage existing project document. It also helps to review the images and drawings as well as view and edit project information offline. Therefore, you are able to sync with the platform, when a connection is available.
BIMxBIMx is a free construction app and with this we can turn gadgets into 3D communication as well as presentation tools for the architectural designs.
SmartBidNetThis iPhone construction app makes you able to create and track the bidding procedure with your subcontractors. The accessible info that this app offers make it easier and timelier to bid projects.
Wheatland EMT CalcWheatland EMT Calc, which helps contractors and engineers, is available for Androids and iPads. For example, with this app, they can canculate the amount they can save on twenty feet of conduit
iBlueprintiBlueprint is highly useful for real estate agents and contractors, as it has an access to blueprints on job sites. Users can create as well as export custom floor plans with this iPod Touch, iPhone and iPad app.
Architect’s FormulatorArchitect;s Formulator with over 200 formulas for plumbing, carpentry and electrical calculations goes for $9.99. Besides the excavation and concrete formulas for calculating the bricks and concrete required for a job, this app also have formulas for steel design, parking areas and even swimming pools.
Green ProGreen Pro helps engineers, contractors, owners and architects access and follow up leadership in Energy & Design credits for major renovations and new construction projects. With this app, users can access credit requirements and also can find out when a particular requirement has been met.
Procore This free construction app makes the users able to create and control punch-list items, access contacts and log time card entries and share and store project pictures. In short, It can make the construction management very easy.
iQuick Contract MakerThis app, which costs $2.99, makes the users able to create and email contracts to customers from iPads, iPhones, or the iPod Touch. With this, the users can also customize contracts for a particular industry or trade.
PlanGrid PlanGrid is a free app and it allows the users to put all their project plans, specs and photos on their iPad. Moreover, cloud-founded annotations that instantaneously sync with colleagues is also allowed with this.
Ustream BroadcasterEven though Ustream Broad caster is not a necessary app, it can help the construction industry in many ways. For example, It allows users stream alive from their device, while they are on a job site or looking at properties for future development.
Carpenter’s HelperAs the name indicates, this free app helps the users calculate the stair length, roof pitch and rafter lengths etc.
JobTracWith this app, you can set up email alert, track jobs, get the advanced bidding news and vies from all over the state.
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Useful Mobile apps for Construction Professionals
Following the link brings one to a website with pictures, but no software, downloadable apps, or samples of their actual work history ….
Hello Peter,
Please specify the link that you were not able to access, I'll get you the correct link.
Revit Modeling India
Great recommendations, thanks so much!
IssMan is another competitive app for construction. It is a great tool for Quality Assurance and Punch Lists. Give it a search on App Store, it's for free.