What MySentinel does

MySentinel is a school-safety system built around one small, repeated event: a learner arriving at school, and a learner leaving it. Everything else — the live dashboard, the attendance record, the message that reaches a parent — is downstream of that one moment at the gate.

The clearest way to understand it is to follow one learner through one day.

One tap, four consequences

A badge is scanned at the gate. The check-in is recorded on the phone immediately, then sent to the school. Once the school has it, attendance updates and every registered guardian is told. The last two happen after the officer has already moved on.

Morning: the badge

The learner arrives wearing a school badge. An officer stands at the gate holding a phone, on the screen the app titles Scan a learner’s badge: one large scanner, and beneath it a line saying where to hold the badge — on a phone that can read badges, Hold a badge to the back of the phone.

The learner holds the badge up. That is the entire action: nobody types a name, nobody signs anything, and the officer does not have to remember whether this child is already inside.

The moment the badge is read

The phone already holds the school’s roster, so it answers on its own rather than waiting for the school’s systems to give permission. Three things happen at once.

The learner is identified, with a photo. The officer sees a name and a face at the moment of the decision. Where a school has not uploaded a photo, the app says so plainly rather than pretending: No photo on file — confirm who you’re releasing another way.

The direction is worked out. There is no “in or out?” question before the scan. The system infers it from the learner’s last known state and the time of day, and the officer can change it with one tap.

The record is written. The officer sees Checked in or Checked out, naming the learner, alongside the time it was recorded. A note beside it names what follows, and is careful about the order: Recording is immediate. Guardians are notified on their verified contacts. If the phone is offline the receipt says so instead: Saved on this phone - not sent yet.

The app never blurs the two: recording and sending are separate things, and the officer is always told which has happened.

The record is permanent

A check-in is not a note that can be tidied up afterwards. Once it has reached the school it is fixed, and the officer’s own screen says so: This has already been sent to the school and can’t be changed here. Corrections are added to the record, never quietly written over it, and every entry carries who made it and when.

That matters on the day it matters: an incident, or a question about when a child left, raised months later.

Attendance answers itself

The first check-in of the day is what the roll starts from. When the class teacher opens it, the learners the gate saw arrive are offered as a proposal for her to confirm in one act — not written in as marks she must unpick — and every other learner starts unstated, for her to say. The gate observes; the teacher states.

Absence stops being something a school discovers halfway through the morning.

Guardians are told — the ones who confirmed

As the record lands, every registered guardian for that learner is notified — not only the adult at the gate. The grandparent who does the school run on Tuesdays and the father working two provinces away both need to know.

There is one deliberate limit, and the school’s own screen states it in full: A parent is reachable once they have confirmed at least one way of being contacted. Until they confirm, nothing is sent to that number or address.

A school can see exactly how many of its families are still in that state. This is the difference between a school that believes parents are informed and a school that knows.

Afternoon: leaving

Same badge, same gesture, the opposite direction. Many learners go home on their own — walking, taxi, bicycle, with an older sibling — and the app treats that as ordinary rather than as an exception: No guardian at the gate — walking, taxi, cycling or with a sibling. All guardians are still notified.

When an adult does collect, the officer records who. Parents follow the day on a private link of their own, which shows a line like Checked in at school at 07:42 — with no account, no password and nothing they are forced to install.

Why a badge and a photo, not a signature book

A paper book records what somebody wrote down. It is slowest exactly when a queue forms, nothing in it can be checked against anything else, and it tells nobody at home anything at all.

The badge fixes identity. Each live badge belongs to exactly one learner, and an unrecognised badge fails loudly instead of quietly: No learner is registered for this badge at your school. A book cannot refuse an entry.

The photo fixes judgement. The person releasing a child sees that child’s face on the same screen as the decision, at the second it is made. It is not a face captured at the gate: learner photos are uploaded deliberately by the school, never taken by an officer with a phone.

Together they make the record checkable. Because a scan is one badge, at one gate, at one second, the system can refuse mistakes a book cannot notice — a second check-in for a learner already inside is rejected on the spot, naming the time of the earlier scan and the officer who made it.

A signature book records an intention. A badge and a photo record what actually happened.