ContinuumAR vs PTC Vuforia Chalk
PTC Vuforia Chalk was a focused AR remote assistance tool known for persistent, spatially-anchored annotations and a minimal setup experience. PTC ceased Chalk operations on October 31, 2025, consolidating remote assistance into ServiceMax Zinc after acquiring ServiceMax. This page covers what Chalk offered, how ContinuumAR compares to its core capabilities, and what teams evaluating replacements should consider.
Bottom line: Chalk is no longer available. For teams that valued Chalk's quick setup, persistent AR annotations, and clean calling interface, ContinuumAR covers those core capabilities and adds integrated ticket management, checklist workflows, and an AI assistant. ContinuumAR requires an Android-based AR headset on the field side; Chalk also supported mobile devices, so device requirements differ.
| Criterion | ContinuumAR | Vuforia Chalk (discontinued) |
|---|---|---|
| Current status | ✓ Active — in active development as of 2026 | Discontinued October 31, 2025 |
| Primary focus | AR remote assistance with integrated ticket and checklist management | AR remote assistance with spatially persistent annotations |
| Field device support | Android-based AR headsets — RealWear Navigator 500/520/HMT-1, Six15 ST1-RA | iOS, Android smartphones and tablets; RealWear headsets via a separate Chalk for RealWear build |
| AR annotations | ✓ Live drawings, arrows, labels that persist on the technician's headset view | ✓ Spatially anchored annotations that stuck to real-world objects even as camera moved |
| Session recordings and snapshots | ✓ Recordings and annotated screenshots saved to ticket | ✓ Sessions could be recorded and images saved |
| Ticket management | ✓ Full ticket lifecycle: status, notes, linking, export | Not included |
| Checklist and workflow engine | ✓ Rule-based conditional workflows, mandatory completion, classification types | Not included |
| AI assistant | ✓ Conversational chatbot for ticket queries, call summaries, status lookups | Not included |
| Voice command operation | ✓ Native voice control via RealWear and Six15 headsets | Available via the RealWear-specific build |
| Deployment | Cloud-based, operational in minutes | Was cloud-based with minimal setup; no longer available |
What happened to Vuforia Chalk
Why PTC ended the product and where they directed customers.
PTC acquired ServiceMax in 2022, which included ServiceMax Zinc, a remote assistance and field communication product. As the two products overlapped in capability, PTC announced that Vuforia Chalk would be retired in favour of Zinc, and officially ceased Chalk operations on October 31, 2025.
Chalk had a notable following because of its simplicity. It required no training to use, worked on devices people already carried, and its spatially anchored annotations were well regarded. The product was genuinely easy to deploy, which made it popular for teams that needed remote assistance without a long procurement or implementation cycle.
Teams who relied on Chalk are now in the position of evaluating alternatives. ServiceMax Zinc is PTC's directed path, but it is embedded within the ServiceMax field service management platform and carries a different commercial and deployment footprint than Chalk did. For teams that want a focused AR remote assistance tool rather than a full FSM suite, the independent market offers more direct options.
How ContinuumAR compares to what Chalk offered
Core capabilities and where they diverge.
Chalk's core proposition was live AR calling with annotations that anchored spatially to real-world objects. ContinuumAR covers that ground: the remote expert sees the technician's live camera view through their AR headset, draws annotations that appear overlaid on the scene, and both parties can communicate in real time. Session recordings and annotated screenshots are captured and stored.
Where ContinuumAR extends beyond what Chalk offered is in the surrounding operational infrastructure. Every call in ContinuumAR is tied to a ticket. The ticket tracks status, captures notes, links related issues, and provides an exportable audit record. A rule-based checklist engine enforces structured workflows with conditional triggers and mandatory completion gates. An AI assistant answers natural-language queries about ticket status and call summaries without requiring manual search.
The significant device difference is that Chalk supported iOS and Android smartphones and tablets as well as AR headsets, while ContinuumAR runs only on Android-based AR headsets for the field side. Teams that used Chalk primarily on smartphones will need to account for that change. Teams that had already deployed RealWear devices with Chalk will find the transition more direct.
What to look for in a Chalk replacement
Questions worth asking when evaluating alternatives.
The most important question is whether your field team uses AR headsets or consumer mobile devices. Chalk's flexibility across device types was part of its appeal. If your team operates primarily on smartphones or tablets, the pool of direct replacements is broader and includes tools that do not require specialist hardware. If your team already uses RealWear or Six15 headsets, the narrower set of platforms built specifically for those devices is where to focus.
The second question is what surrounds the AR call itself. Chalk was deliberately minimal: a calling tool with very good annotations, and nothing else. If that simplicity is what you need, any direct AR calling tool will serve. If the absence of ticket tracking, workflow structure, and session management was a friction point with Chalk, choosing a replacement that includes those capabilities is worth the slightly higher initial complexity.
Third, consider vendor stability. Chalk's discontinuation was a disruption for its users. Evaluating a replacement's roadmap, funding, and customer base is a reasonable part of due diligence.
Migrating from Vuforia Chalk?
We can walk you through how ContinuumAR maps to your current Chalk workflows and what changes to expect for your devices and team.