Castum by Paying.co

Android MDM for kiosks and payment devices

Castum is a mobile device management platform built for Android only. Enroll devices, push your apps and updates, apply configuration, and lock devices into kiosk mode, all from one console.

Priced for fleets that do not need an enterprise mobility suite: $1.25 per device per month.

Android only · Sold in batches of five devices · Used on Paying.co's own kiosk deployments
ILLUSTRATIVE · SAMPLE DATA
Lobby kiosk 01Kiosk app v2.4 · locked
ONLINE
Lobby kiosk 02Kiosk app v2.4 · locked
ONLINE
Counter terminal 07Payment app v1.9 · update queued
UPDATING
Counter terminal 08Payment app v1.9 · locked
ONLINE
Androidonly, by design
$1.25per device per month, annual
$1.50per device per month, monthly
5devices per batch
01 · What it does

The device management a kiosk or payment fleet actually needs.

Most Android deployments need the same few things done reliably: get devices enrolled, get the right app on them, keep them locked to it, and update them without a site visit.

ENROLL

Enroll devices

Bring Android devices under management and organize them into groups so each location or customer gets the right configuration.

DEPLOY

Deploy apps and updates

Install your kiosk or payment application and push new versions remotely instead of touching each device.

LOCK DOWN

Kiosk mode

Keep a device dedicated to your app so customers cannot leave it, which is the point of an unattended kiosk.

CONFIGURE

Apply configuration

Set device and app configuration centrally, and change it for a whole group at once.

OPERATE

One console

See the fleet in one place at dash.castum.co, with a side navigation built around the tasks above.

BUILT WITH PAYMENTS

From a payments engineering team

Paying.co builds the kiosk and payment apps that run on these devices, so Castum is shaped by real unattended deployments.

02 · Choosing an Android MDM

A low-cost alternative to Esper-style Android MDM platforms.

Platforms such as Esper cover a wide range of device fleets. If your fleet is Android kiosks and payment devices running your own apps, you may not need that breadth. Castum is the narrower, cheaper option. Here is how to tell which side you are on.

Castum is a good fit if you have

  • Android kiosks, self-service terminals or payment devices
  • A custom Android app that must stay in the foreground
  • Many small deployments, each needing remote app updates
  • A budget measured in dollars per device, not per seat

Look elsewhere if you need

  • iOS, Windows or macOS device management
  • A full employee-device or BYOD mobility suite
  • Capabilities not listed on this page. Ask us and we will tell you plainly.
03 · Pricing

One price per device.

Pay annually for the lowest rate, or monthly for flexibility. Devices are sold in batches of five. For example, 100 devices on an annual plan is 20 batches at $125 per month.

If a subscription lapses, new enrollments and updates are blocked. Devices already in the field are not affected.

CASTUM $1.25 per device per month, billed annually
Annual billing$1.25 / device / month
Monthly billing$1.50 / device / month
Minimum purchase1 batch of 5 devices
Open the console →
04 · Where it fits

Built for unattended and kiosk deployments.

05 · Questions

Castum FAQ

What is Castum?

Castum is an Android-only mobile device management (MDM) platform from Paying.co. It enrolls Android devices, deploys apps and updates, applies configuration, and locks devices into kiosk mode from one web console. Paying.co builds it for its own kiosk and payment-device deployments and offers it to other teams at a low per-device price.

Does Castum manage iPhones, iPads, Windows or Mac devices?

No. Castum manages Android devices only. That focus is deliberate and is part of why it can be priced at $1.25 to $1.50 per device per month.

How does Castum compare with Esper?

Esper is a well-known Android device management platform. Castum is narrower and cheaper by design: Android only, kiosk and payment-device deployments first, and a flat per-device price. Compare current pricing and features from Esper against your own requirements. We do not publish competitor pricing, and if your deployment needs capabilities Castum does not offer, we will say so.

How much does Castum cost?

Castum is $1.25 per device per month when billed annually, or $1.50 per device per month when billed monthly. Devices are sold in batches of five.

Can I use Castum for Android kiosks?

Yes. Kiosk deployments are the main use case. Castum enrolls the device, installs your kiosk app, and keeps the device locked to it. Paying.co uses Castum for its own kiosk deployments.

Can Castum manage Android payment terminals?

Many payment terminals run Android, and Paying.co deploys the payment applications it builds onto them. Whether a specific terminal model can be enrolled depends on its firmware and manufacturer restrictions, so confirm the model with us before you buy.

What happens if my subscription lapses?

New enrollments and updates are blocked. Devices already in the field keep running and are not affected.

Where do I sign in?

The Castum console is at dash.castum.co.

Manage your Android fleet for $1.25 a device.

Open the console to get started, or talk to us about a kiosk or payment deployment that needs the app and the device management together.