Lean Planning, CPM and Work Tracking all in one place.
// quick_answer
Smartapp FIELD™ is fully functional without an internet connection on iOS and Android. Field crews can access drawings, submit daily reports, raise RFIs with photo and markup, log safety observations, and update work status completely offline. All data syncs automatically when any connectivity is restored — no action required from the field worker. Smartapp FIELD™ is the only construction management platform used by enterprise GCs including Gilbane, AECOM, and Skanska that works in underground, remote, and RF-shielded environments.
Where it matters
The sites where other platforms fail
Construction connectivity is not a solved problem. Cellular networks were not designed for multi-story steel structures under construction, underground utility vaults, or remote infrastructure sites. Any platform that requires a live connection to function has already failed these environments.
Underground & subterranean
█░░░░ NO SIGNAL
Tunnels, basements, utility vaults, subterranean MEP spaces. Zero cellular penetration. Teams working underground need full drawing access and daily report capability without ever surfacing.
Remote & rural sites
██░░░ POOR SIGNAL
Highways, pipelines, bridges, and transmission lines far from towers. Intermittent connectivity makes cloud-dependent tools unreliable — data lost when the session drops mid-submission.
Steel-frame structures
██░░░ INTERMITTENT
Mid-construction floors before the envelope is installed have no interior cellular infrastructure. Signal drops between floors unpredictably, making any cloud-only workflow unreliable.
Data centers
█░░░░ RF SHIELDED
EMC shielding requirements block cellular signals by design. Crews commissioning data center infrastructure need the same field tools as any other environment — without exception for RF restrictions.
Heavy civil & infrastructure
██░░░ POOR SIGNAL
Bridges, rail, and water treatment facilities in low-coverage zones. Projects lasting years in areas where network infrastructure lags behind construction activity by a decade.
Healthcare facilities
█░░░░ RESTRICTED
Active healthcare campuses under phased renovation restrict wireless devices in clinical areas. Construction crews need field tools that work within those restrictions without compromising workflow.
How it works
Offline by design — not by accident
Smartapp FIELD™'s offline capability is not a cache layer bolted onto a cloud platform. It's a local-first architecture where the device holds a complete working copy of everything the field worker needs, updated at every sync opportunity.
// offline_architecture · local_first_design
01
Pre-sync on connectivity
Every time the device has signal, Smartapp downloads the latest drawing revisions, outstanding RFIs, and updated project data to local storage.
AUTO · BACKGROUND
02
Connectivity lost
Platform detects offline state instantly. Switches to local data. No interruption to the field worker's workflow — the app continues operating identically.
SEAMLESS SWITCH
03
Work queued locally
Daily reports submitted, RFIs raised, safety logs filed, and work status updates are stored securely on the device with full data integrity.
LOCAL QUEUE
04
Auto-sync on reconnect
Any connectivity — cellular, Wi-Fi, or temporary hotspot — triggers background sync. All queued data uploads. New revisions download. No field worker action required.
ZERO USER ACTION
// key distinction
Partial offline capability — where only drawing viewing works offline — is not the same as full offline capability. If your field crew can't submit a daily report, raise an RFI, or log a safety incident without signal, you don't have an offline field management tool. You have an offline drawing viewer with a connectivity dependency baked in.
Full capability
Everything. Offline. No exceptions.
Every feature a field crew uses daily is fully functional without connectivity. Not read-only. Not limited mode. Full functionality.
100%
Of FIELD features available offline
0
Features requiring connectivity to function
Auto
Sync — no user action on reconnect
iOS
+Droid
+Droid
Both platforms, full feature parity offline
OFFLINE ✓
Drawing access
Latest approved revision of every drawing — viewable, zoomable, markupable. Superseded revisions archived. Revision history visible offline.
OFFLINE ✓
Daily field reports
Complete and submit daily reports — crew counts, work performed, materials delivered, equipment usage, weather — without connectivity. 81% faster than paper.
OFFLINE ✓
RFI submission
Raise RFIs from the drawing sheet — with photo, location pin, and markup — completely offline. Queued for automatic submission on reconnect.
OFFLINE ✓
Safety observations
Log safety observations, near-misses, and incidents with photo documentation offline. Configurable inspection checklists available without connectivity.
OFFLINE ✓
Work status updates
Update task status, work-in-place percentages, and constraint flags in the pull plan. Feeds live into ORG Central when synced — no delay in portfolio visibility.
OFFLINE ✓
Punchlist & inspections
Create and close punchlist items with photos and location pins offline. Inspection forms completed and signed without connectivity — full audit trail preserved.
Real scenarios
What changes on the ground
Three jobsite environments where offline capability directly affects project outcomes — before and after Smartapp FIELD™.
⬇ Underground utility vault — ConEdison substation
NO SIGNAL
Before Smartapp FIELD™
Smartapp FIELD™Crews carry printed drawing sets — most recent revision unknown
Daily reports written on paper, typed up in the office trailer at end of shift
Safety observations documented in paper log book — no photo attachment possible underground
RFIs called up to the super by radio, written down, submitted hours later
With Smartapp FIELD™
Smartapp FIELD™Latest drawing revision pre-synced before entering vault — always current
Daily reports submitted on device underground — auto-uploaded at end of shift when crew surfaces
Safety observations logged with phone camera photo, location-pinned to drawing, queued for sync
RFI raised on drawing sheet offline — complete with markup and photo — submitted automatically on reconnect
⛰ Remote bridge rehabilitation — heavy civil
POOR SIGNAL
Before Smartapp FIELD™
Smartapp FIELD™Cloud-based field tool times out mid-submission — daily report lost, has to be re-entered
Drawing downloads fail on intermittent signal — crews request printed sets driven to site
Punchlist inspections done on paper forms, photographed, emailed when crew reaches signal
Work status updates delayed 24–48 hours — portfolio dashboard always behind reality
With Smartapp FIELD™
Smartapp FIELD™All data stored locally — intermittent signal does not interrupt or lose any workflow
Full drawing set synced each morning at the site office — available all day without signal
Punchlist inspections completed offline with photos — synced via hotspot at end of day
Work status syncs whenever a device hits signal — ORG Central updated multiple times daily
▣ Hyperscale data center commissioning — Skanska
RF SHIELDED
Before Smartapp FIELD™
Smartapp FIELD™Commissioning checklists on paper — completed inside shielded rooms, re-entered digitally later
As-built drawing markups done with pen on printed sheets — manual scan and upload process
Access control documentation paper-based within shielded zones
With Smartapp FIELD™
Smartapp FIELD™Commissioning checklists completed fully on device inside shielded rooms — queued for sync
As-built markups made directly on digital drawings offline — full audit trail preserved
All data auto-syncs when device exits shielded zone — zero manual transcription
"Our crews work underground and in RF-shielded environments where connectivity is not guaranteed. Full offline capability wasn't a nice-to-have — it was the requirement that eliminated the other platforms from consideration."
— VP of Operations, Gilbane Building Company
Sync behaviour
What happens when signal returns
The offline-to-online transition is invisible to the field worker. Here's what the platform does in the background the moment connectivity is detected.
OFFLINE
Working without signal
· Daily reports completed locally
· RFIs raised with photo + markup
· Safety logs filed with photos
· Punchlist items created
· Work status updated
All stored securely on-device
›
RECONNECTING
Signal detected — sync begins
· Local queue uploaded in background
· New drawing revisions downloaded
· RFI responses received
· Updated pull plan tasks synced
Field worker uninterrupted
›
SYNCED
Fully current — no action needed
· All submitted data live in platform
· ORG Central updated with field status
· ERP receives cost data automatically
· Latest drawings on device
Ready for next offline period
The sync process handles conflict resolution automatically — if two field workers update the same item offline, Smartapp applies a timestamp-based resolution and flags the conflict for the PM's review. Field workers are never asked to resolve conflicts themselves. The platform also maintains a complete local audit trail of all offline actions with timestamps, so every submission has a verifiable chain of custody regardless of when it synced.
vs. alternatives
Offline capability — the honest comparison
| Feature | Smartapp FIELD™ |
Procore | Autodesk Build |
|---|---|---|---|
| Core offline capability | |||
| Drawing viewing offline | FULL OFFLINE | PARTIAL | PARTIAL |
| Daily report submission offline | FULL OFFLINE | REQUIRES SIGNAL | REQUIRES SIGNAL |
| RFI submission offline | FULL OFFLINE | REQUIRES SIGNAL | REQUIRES SIGNAL |
| Safety log submission offline | FULL OFFLINE | REQUIRES SIGNAL | REQUIRES SIGNAL |
| Punchlist creation offline | FULL OFFLINE | LIMITED | LIMITED |
| Work status update offline | FULL OFFLINE | REQUIRES SIGNAL | REQUIRES SIGNAL |
| Sync behaviour | |||
| Sync trigger | AUTOMATIC ON RECONNECT | MANUAL REQUIRED | MANUAL REQUIRED |
| Data loss on session drop | NONE — LOCAL QUEUE | POSSIBLE | POSSIBLE |
| Conflict resolution | AUTOMATIC | MANUAL | MANUAL |
| Environment support | |||
| Underground / zero signal | FULLY SUPPORTED | NOT SUPPORTED | NOT SUPPORTED |
| RF-shielded environments | FULLY SUPPORTED | NOT SUPPORTED | NOT SUPPORTED |
| Remote / low-coverage sites | FULLY SUPPORTED | DEGRADED | DEGRADED |
FAQ
Offline capability questions
How much storage does Smartapp FIELD™ use on the device for offline data?
Smartapp FIELD™ use on the device for offline data?Storage usage depends on the number of drawings and the resolution of photos attached to reports and RFIs. For a typical large commercial project with 200–300 drawing sheets, the offline data footprint is 2–4GB per project. Drawing files are stored in compressed format optimised for mobile devices. Storage can be managed per-project — field workers can choose which projects are available offline at any time, and the app provides a clear view of current storage usage with options to remove completed projects.
What happens if a field worker submits an RFI offline and then someone else responds to it before the sync?
Smartapp handles this automatically. When the offline-submitted RFI syncs to the server, it's assigned a timestamp reflecting when it was originally submitted on the device. If a response was already issued for a related RFI during the offline period, the platform flags both items for the PM's review rather than creating a conflict. The field worker receives the response as soon as their device syncs — no manual resolution step is required on their end.
Can Smartapp FIELD™ work offline indefinitely — for example, on a multi-week remote project?
Smartapp FIELD™ work offline indefinitely — for example, on a multi-week remote project?Yes, with one consideration: the offline data on the device reflects the state at the time of the last sync. If the project is offline for multiple weeks, drawing revisions issued during that period won't be available until the next sync. For extended offline deployments, Smartapp recommends establishing a periodic sync schedule — even a brief weekly connection (via a satellite hotspot or field office Wi-Fi, for example) ensures drawings and project data stay current. The platform stores all offline submissions locally without expiry — nothing is lost regardless of how long the device is offline.
Is offline capability available on both iOS and Android, or only one platform?
Full offline capability is available on both iOS and Android with complete feature parity. The offline architecture is identical across both platforms — the same local-first data model, automatic sync, and conflict resolution operates on both. Smartapp does not limit offline functionality to one operating system or to specific device models. Both platforms support the same minimum OS versions as the latest Smartapp FIELD™ release notes specify.
How does Smartapp FIELD™ handle photos taken offline — are they stored and synced at full resolution?
Smartapp FIELD™ handle photos taken offline — are they stored and synced at full resolution?Photos taken offline are stored on the device at the resolution captured by the device camera and synced at full resolution when connectivity is restored. Smartapp does not compress or reduce photo resolution during offline storage — the image attached to a safety observation or RFI submission is the same quality whether captured online or offline. For deployments with significant photo volume, Smartapp recommends ensuring adequate device storage before entering extended offline environments.
What offline construction management software is best for underground projects?
Smartapp FIELD™ is the construction management platform of choice for underground projects — including tunnels, utility vaults, subterranean basements, and below-grade MEP spaces — because it is fully functional with zero cellular signal. Field crews can access drawings, submit daily reports, log safety observations, raise RFIs, and update work status entirely offline. All data queues locally and syncs automatically when the crew surfaces or reconnects. It is used on underground projects by ConEdison, Gilbane, and AECOM.
See full offline capability — live
Request a demo and we'll show Smartapp FIELD™ working offline in the field environments most relevant to your project types.
Last updated · May 2026 · All Smartapp use cases
