Pricing
A one-time perpetual licence per device — one controller, one robot, or one PLC. The same price whether you buy one or fifty. No per-tag licence, no annual maintenance, and every protocol in the licence.
Effective 16 September 2026
Edge Gateway licence
One controller, one robot, or one PLC.
Anyone from a machine builder shipping one panel to an integrator standardising across a plant. The price per device does not change with how many you buy.
- One controller, one robot, or one PLC — same price for each
- Every southbound driver — Siemens, Mitsubishi, Modbus, Rockwell, OPC-UA, and eleven robot families
- OPC-UA server, Modbus slave, MQTT (incl. Sparkplug B), SQL and REST
- Unlimited tags. No per-tag licence, ever
- Cloud control plane: health, logs, remote commands
- Store-and-forward buffering and multi-gateway fleet view
- Perpetual. The machine you shipped keeps working
Enterprise
Multi-site rollouts, and OEMs embedding the gateway in every machine they ship. A written agreement rather than a price on a page.
- Everything in the licence
- Volume and OEM-embed licensing
- On-site commissioning assistance
- Named support contact, SLA and escalation path
- Custom driver requests considered
No per-tag licence
Read 20 tags or 20,000 — the price is the same. Tag metering is the single line item that makes a brownfield retrofit unpredictable to budget.
No annual maintenance
Kepware charges 20% a year, Ignition 16%. Here, a licence you bought for a machine you shipped keeps working with no renewal attached to it.
No module unbundling
OPC-UA server, Modbus slave, Sparkplug B, SQL logging and REST are in the licence. There is no cheaper one that leaves them out.
No volume ladder
The published price is the same at one device or at fifty — nothing to model, and no tier boundary that makes your next machine the expensive one. Multi-site and OEM-embed deals are negotiated in writing.
Prices are in INR and exclusive of GST. A device is one controller, robot or PLC that a gateway polls; a gateway runs on one host machine, and a second gateway is a second installation with its own devices counted the same way. Multi-site rollouts and OEM embed rights are a written agreement.
Currency and taxes
All prices are in Indian Rupees and are exclusive of GST, which is added at the applicable rate on the invoice. Give us your GSTIN and registered name at the time of purchase if you intend to claim input credit — an invoice cannot be reissued to a different entity afterwards. Our GSTIN is 06BHKPP4243A1ZM.
What one-time means here
You pay once per device. There is no renewal, no annual maintenance percentage and no support contract you have to keep buying to keep the software running. A machine you shipped three years ago still works, and the licence on it does not need our servers to be reachable to keep polling.
Kepware charges roughly 20% a year in maintenance and Ignition roughly 16%. Those figures, and every competitor price the comparison is built on, are published list prices or sourced public estimates, each shown with the source that produced it.
How you pay
Payment is by card, net banking, UPI or bank transfer against a GST invoice, processed through Razorpay. Card and bank details are entered on Razorpay's systems and are never seen or stored by us. Purchase orders are accepted from registered entities; ask and we will raise a proforma invoice.
Delivery
The installers are a free public download. The licence key is emailed to the address on the order within one working day of payment confirmation. Nothing is shipped physically and no delivery charge is ever added — see the delivery policy.
Refunds
Refundable within 7 days of payment while the key is still unactivated. Because the installers are public, the intended order of events is to prove the gateway reads your controllers first and buy a key second. Full conditions are on the cancellation and refunds page.
What counts as a device
One device is one controller, one robot, or one PLC — one thing the gateway opens a connection to and polls. A Siemens S7-1200, a Universal Robots arm and a Yaskawa controller are each one device and each cost the same. You are not charged by tag count, by client count, by how many protocols you turn on, or by how many northbound shares read the same values.
A gateway runs on one host machine and polls the devices on its order. A second gateway is a second installation with its own device allowance, and its devices are counted and priced the same way — ₹22,000 each. If you are unsure how a topology counts, describe it to us at business@tariniengg.in and we will tell you — including when the answer is a smaller number than you asked for.
Quantity
The price per device does not change with how many you buy: the fiftieth costs what the first one did. There is no volume break to negotiate and no tier boundary that makes your next machine the expensive one. If you are embedding the gateway in a product you ship, or rolling it out across several sites, that is a written agreement rather than this page — see below.
Volume, OEM and enterprise
Anyone embedding the gateway in a product they ship, or rolling it out across multiple sites, is on a written agreement rather than this page. That covers volume pricing, embed rights, an SLA and an escalation path. Cancellation for those orders follows the signed agreement, not the 7-day window above.
Purchases are subject to our terms and conditions — in particular clause 5, which sets out what this software may and may not be used for.