What’s the cheapest invoicing software in India with unlimited users?
Short answer
399Apps (Nidhi Books) is among the cheapest invoicing software in India that includes unlimited users: from ₹399/month for your first app, with no per-seat fees, no client cap and every feature included. Most rivals such as Zoho Books or QuickBooks charge per user, so the cost climbs as you add staff. A free 14-day trial is available.
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Why unlimited users matters for cost
Most invoicing and accounting tools price by user or by plan tier, so each extra salesperson, accountant or branch adds to the bill. For a growing team, per-user pricing is where the “cheap” plan quietly becomes expensive.
Nidhi Books includes unlimited users on every plan — no per-seat fee, no client cap — from ₹399/month for your first app (each add-on ₹99/month, prices exclude GST). You add people without adding cost, which is what makes it one of the cheapest options once more than one person touches the books.
You still get full GST invoicing, e-invoicing, GSTR-1 and GSTR-3B, so “cheap” does not mean stripped down.
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More questions
Does 399Apps really include unlimited users? +
Is there free invoicing software in India? +
What is included for ₹399/month? +
Affordable GST software from ₹399/month
Cloud GST billing, accounting and inventory with unlimited users. Start your free 14-day trial — no card required.