For most of the last decade, choosing a management information system was a formality. SIMS was the default, the safe option, the one nobody got questioned for choosing. That era is over. Arbor has now overtaken SIMS across the UK education market, with SIMS down to around 30% market share and still falling. It is, by any measure, the biggest shake-up the school systems market has seen in twenty years.
For mainstream primaries, this is an interesting industry story. For SEND schools, Alternative Provision, PRUs and hospital schools, it is something more pressing: a second chance to fix a problem that a straight MIS-to-MIS swap will not solve.
The trend behind the headlines
The numbers are stark. A platform that once held 85% of the market has been overtaken by a challenger built on cloud infrastructure and a very different philosophy of what a school system should do. The Key Group’s three brands now serve over half of the UK school systems market between them.
Schools currently sit inside a genuine switch window. Notice periods on legacy contracts typically fall in the September to October range, which means the decision to move or to stay is being made right now, not in some distant renewal cycle. For SENDCOs, DSLs and pastoral leads who have spent years working around the limitations of a mainstream system never designed for their setting, that window matters.
Why the mainstream MIS conversation misses the point for AP and SEND
Most of the commentary around this shift treats MIS as interchangeable: attendance, registers, timetabling, a parent portal. Swap one for the other and move on.
That framing works for a mainstream primary. It does not work for a specialist setting.
An AP, SEND or hospital school is managing a fundamentally different volume and type of information. Safeguarding logs that need to be visible to the right people at the right time, and provable to inspectors after the fact. SEMH tracking that has to show pattern and progression, not just isolated incidents. EHCP evidence that has to stand up to scrutiny. Multi-agency case management where social workers, therapists, virtual school heads and pastoral teams all need a shared, accurate picture. Therapy outcomes that need to sit alongside academic data, not in a separate spreadsheet nobody remembers to update.
Standard MIS platforms were not built around any of this. They were built around the mainstream school day. So specialist settings end up doing what they have always done: running a mainstream MIS for the statutory basics, and then bolting on two, three, sometimes five other tools to cover safeguarding, SEMH, case notes and intervention tracking.
The operational cost of a fragmented system
This is where the real cost of “just switching MIS” shows up. Every additional system is another login, another place data can go stale, another gap between what one team knows and what another team can see.
Duplicate data entry eats staff time that should be going towards intervention, not admin. Safeguarding oversight becomes harder to evidence when the full picture is split across four platforms. Reports pulled together at speed, from disconnected sources, do not hold up well when an inspector asks a follow-up question. And leadership teams lose the one thing they actually need in a specialist setting: a live, connected view of what is happening with every child, right now, not what was true when someone last remembered to update a spreadsheet.
A mainstream MIS swap does not fix any of this. It just changes which system sits underneath the same fragmented workaround.
A connected alternative, built for the setting you actually run
This is the gap EDART and R3flect were built to close.
EDART is designed specifically for SEN, PRU, specialist and mainstream schools that need more than a records system, it brings safeguarding, SEMH tracking, case management, student voice and academic data together in one Ofsted-recognised platform, hosted securely on Microsoft Azure. Instead of five tools giving five partial views, teams work from one shared, evidence-led picture.
R3flect does the same job for Alternative Provision and hospital schools, where case complexity and multi-agency involvement are often even higher, and where the ability to evidence intervention and progress is central to a school’s accountability.
The two platforms are built to work together, not as a compromise but by design. Where a school or trust needs both an MIS-level view and deeper case management, EDART and R3flect integrate seamlessly — meaning a switch does not mean starting from scratch, running parallel systems, or losing historical data in the handover. Bitnet manages that transition end to end, so the switch window becomes an opportunity rather than a disruption.
What this means for the September/October decision window
If your trust is already reviewing MIS options ahead of the autumn deadline, this is the moment to ask a different question. Not “which system replaces SIMS,” but “which system gives our safeguarding, SEND and pastoral teams the visibility they actually need.”
Schools cannot support what they cannot see. As more of the sector moves away from legacy systems, the settings that benefit most will be the ones that use this window to move toward genuine connected visibility not just a different version of the same fragmented setup.
Explore how a connected switch could work for your school or trust.
Book a free demo: https://calendly.com/ashrafkala
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