Automated bells, religious observances, and announcements.
A unique software designed specifically for Windows PCs that automatically runs school bells, daily schedules, and announcements. No internet required. Everything runs according to a pre-planned schedule.
Reliable software for bells, observances, and announcements
A missed or late bell can disrupt the entire school day. Pulse is designed so that such a mistake never happens.
Free from missed bells and delays
If the computer goes to sleep, Pulse automatically detects it and rings missed bells as soon as it wakes up, or prevents unnecessary ringing of past bells.
- Sleep & wake recovery within a customizable grace window.
- Runs in the system tray — closing the window never stops it.
100% offline voice announcements
Generates voice announcements using local Windows SAPI5 voice technology without internet or cloud services. No student information is sent to external servers.
- Zero cloud dependency — plays on time even if the internet is down.
- Student privacy first — nothing is sent to external servers.
Direct connection to the PA system
Route only Pulse's bell sounds through a separate audio channel, preventing other computer alerts or sounds (e.g., email notification sounds) from being heard over the school's public address (PA) system.
- Dedicated output device keeps system sounds off the PA.
Security and audit logs
Every bell ring, modification, volume change, and emergency ring is saved in a database. These can be downloaded as a CSV file.
- CSV export for board audits and security reviews.
Seven modules, one control room
Contains everything an administrator needs to set up bells, observances, and announcements, mark holidays, and control everything.
Dashboard console
A dashboard that displays the currently playing sound and all upcoming scheduled bells live.
- Live countdown to the next event, down to the second.
- Visual timeline with Played / Now / Next / Upcoming badges.
- Quick actions — manual ring, test preview, pause & rotation override.
Master Bell/Observance Management
Easily set up bell schedules for different days (such as regular days, term exam days, half days) and A/B day rotations.
- Custom day templates — Regular, Half-Day, Exam Week, Assembly.
- Pre-bell warning chimes two minutes before the main bell.
- Schedule health checker flags empty templates & duplicate times.
Holidays and Special Calendar
Add special one-day bell settings for holidays or special assembly days without changing the master schedule.
- Holiday & no-bell blocks that pause the rotation cycle.
- Single-day overrides for assembly or special days.
- One-off ad-hoc events that play once and never repeat.
Sound and Announcement Collection
Easily add your own sounds (.wav, .mp3) in addition to the bell sounds provided with the software, and control their volume.
- Drag-and-drop import of .wav, .mp3 or .ogg (up to 10 MB).
- Per-event volume & fades from 0 to 10 seconds.
- Smart safety lock blocks deleting sounds in active use.
Voice Announcement Settings
Ability to include an attention chime before an announcement and adjust speech speed for large halls.
- Precursor attention chimes before every announcement.
- Adjustable speech rate to compensate for large gymnasiums.
- Speak Preview auditions chime + speech instantly.
Activity Log
All bell rings, times, and alerts are recorded in detail with search capabilities.
- Logs everything — rings, overrides, skips, clock-drift warnings.
- Filter & search by category or date range.
- Auto-pruning after 180 days keeps things fast.
Settings and Backups
Ability to launch the app when the computer starts, synchronize NTP times, and back up settings as a JSON file.
- NTP time integrity checker alerts on drift over 2 seconds.
- One-click JSON backup with a restore comparison preview.
- Light & dark themes and launch-minimized-on-boot.
Technical specifications convenient for the IT department
Frequently asked questions
Is School360 Pulse really free?
Yes. School360 Pulse and all of its built-in bell sounds are completely free for schools to download and use — there is no licence fee, subscription or credit card required.
Does Pulse need an internet connection to work?
No. Pulse runs entirely on the school's Windows computer and plays every bell and announcement on time even when the internet is down. Nothing is sent to external servers.
What does Pulse need to run?
Pulse is a native 64-bit application for Windows 10 and Windows 11. It uses under 1% CPU and about 150 MB of memory, so it runs quietly in the background on everyday school computers.
Can Pulse play bells through our PA system?
Yes. Pulse can send its bells and voice announcements to a dedicated audio output, keeping ordinary Windows system sounds off the public address system so only scheduled bells and announcements are broadcast.
Download 100% free and automate your school bells in minutes. No internet or credit card required.