On an installation project, the phone in the engineer's pocket is where most of the useful information is created. It is where the charger's serial is photographed, where the string readings are entered, where the snag is logged and where the customer signs. If the app on that phone is awkward, slow or useless without signal, the information gets written on the back of a glove instead, and the office spends the next week chasing it.
This article looks at what installers actually need from a mobile app on site, with examples from commercial solar, battery and EV charging work, and how Integrio's apps for iOS and Android are set up for it.
Where installers really work
Marketing images of field apps show someone in clean hi-vis holding a tablet in daylight. The reality is less tidy.
- A plant room or basement switch room where the phone has no signal.
- A flat commercial roof in wind, with gloves on, holding a meter in one hand.
- An underground car park where chargers are being mounted along a wall with patchy coverage at best.
- A battery enclosure on a remote industrial site with mobile data that comes and goes.
Any app that assumes a constant connection will fail in most of these places. Any app that needs ten taps to record one reading will be abandoned by lunchtime.
Offline has to be the default
Integrio's forms are available on the web platform and in the mobile app, including in offline mode. When there is no connection, data is saved locally on the device; when the connection is restored, it synchronises back to the cloud automatically. The same applies to snag capture: snags and photos can be recorded in areas with poor connectivity and sync when signal returns.
In practice this means a crew can download the day's project before leaving the depot, work through the switch room and roof without thinking about coverage, and let everything upload when they reach the van. The office sees the work arrive as soon as the phone reconnects.
Two habits make offline working reliable:
- Open the project before you lose signal. Loading the job while on Wi-Fi or good coverage makes sure forms and product records are on the device.
- Check the sync state before leaving site. A quick look to confirm nothing is still waiting to upload avoids the rare case of a phone being switched off with unsent data.
Scanning products instead of typing
Every product in Integrio can have an automatically generated QR code. Scanning it through the Integrio app shows the product's data and logs its arrival. That one action does more than save typing.
It removes ambiguity. On a project with thirty identical chargers, the engineer is always editing the record for the unit they have just scanned, not the one they think it is.
It ties delivery to installation. Scanning at goods-in logs that the item arrived; scanning at installation opens the same record to add location, serial confirmation and test results.
It sets up aftercare. Once installed, the same QR code serves the customer. Scanning it with an ordinary phone opens a fault submission page, sending the report straight to your helpdesk against the right product. See helpdesk and aftercare.
A practical tip: fix codes where they will survive and be reachable. On chargers that usually means inside the service cover as well as a customer-facing label; on inverters, on the side rather than the heat sink; on batteries, on the enclosure door.
What gets captured on site
A good day on a commercial install produces several kinds of record, all from the phone.
Product data. Serials, firmware versions, configuration and location for each item, entered against the product's data points. See per-product data points.
Testing and commissioning forms. Readings as numbers, pass or fail, photos of meter displays and rating plates, and signatures. Mandatory fields make sure nothing is skipped. See product testing forms and commissioning checklists.
Snags. Photos and videos with annotations, geotagged and timestamped, assigned to the right person with automated notifications. See snagging.
Time. Time sheets recorded against the project, so labour is tied to the job rather than reconstructed at the end of the week. See time sheets.
Voice notes. When typing is impractical, audio notes with AI transcription turn a spoken observation into text on the record. See AI features.
Sign-off. Customer signatures captured on the device for completion and acceptance. See project sign-off.
Designing forms for a small screen
The app can only be as good as the forms you put on it. Forms designed at a desk often need rethinking for use on site.
- Order fields in the order the work happens. If the engineer isolates, tests, then re-energises, the form should follow that sequence.
- Prefer taps to typing. Dropdowns, radio buttons and checkboxes are faster than text fields, and give cleaner data.
- Use number fields for readings. They bring up the numeric keypad and stop "OK" being entered where a value belongs.
- Hide what does not apply. Conditional logic keeps a three-phase charger form from showing single-phase fields, and vice versa.
- Keep photos in the form. A photo field on the relevant question keeps evidence with the answer rather than lost in the camera roll.
The office sees it as it happens
The point of the app is not only faster data entry. It is that the office stops being blind. When a crew completes a charger commissioning form, the project reflects it. When a snag is raised, the person responsible is notified. When a delivery is checked in short, it is flagged.
Project managers can see the status of work without phoning the site, and the site team is not interrupted to answer "where are you up to?". Combined with the calendar and live map in resource management, the office can see who is where and what they have completed.
Security and access
Installers often work alongside subcontractors: a groundworks team for charger bases, a roofing contractor for mounting, a specialist for battery commissioning. Integrio's contractor access lets you give external teams project-specific permissions, so they can complete their forms and see what they need without seeing the rest of your business. Forms can also be shared by secure external link for completion in a browser without a login.
Getting crews to use it
Adoption is decided in the first week. A few approaches help:
- Start with one form the crew already fills in on paper, and make the digital version shorter than the paper one.
- Install the app and log in at the depot, not on the roof.
- Show crews what happens to their data: the handover pack it builds, the return visit it prevents.
- Fix complaints quickly. A field nobody can answer should be removed that day, not next quarter.
The Integrio app is available for iOS and Android, on phones and tablets.
