All 21 399apps business apps, in one place
399apps sells 21 business apps for Indian small businesses — from Nidhi Books (GST accounting) and Nidhi Inventory to Nidhi POS, Nidhi Rentals and Nidhi Assets. Each app costs a flat ₹399/month with unlimited users, plus GST. Buy one, or run several on one account; all 21 together come to ₹8,379/month. Every app runs on our cloud or self-hosted on your server.
Who it's for
If you run a shop, a trading or wholesale firm, or a service business with a few staff on billing, 399apps fits because you pay per app, never per user — add your whole team without the bill going up.
Who it's not for
If one person bills from one Android phone, myBillBook's yearly plan is cheaper — see myBillBook vs 399apps. If you need statutory payroll (PF, ESI, salary-TDS), no app here files it. If you run a school office, see 399apps for Schools — a separate product at ₹7,500 per school per year.
Every app at a glance
What each app does, the job it covers and what it costs.
| App | Category | What it does | Price |
|---|---|---|---|
| Nidhi Books | Accounting & Finance | GST-ready invoicing, TDS-aware payments, P&L and Cash Flow, with audit-grade CSV and PDF exports. | ₹399/month |
| Nidhi Inventory | Inventory & Warehousing | Stock, SKUs, purchase orders, transfers, barcodes — one source of truth for every product you sell. | ₹399/month |
| Nidhi POS | Point of Sale & Billing | Ring up sales on any phone or tablet — barcode scan, Cash/UPI/Card, thermal receipts, khata credit and day-close — all synced to your books and stock. | ₹399/month |
| Nidhi Billing | Subscriptions & Recurring Billing | Run subscription plans, add-ons and coupons, automate dunning and collections, and watch MRR, LTV and churn — all on the same stack as your books. | ₹399/month |
| Nidhi Storefront | Online Store & Commerce | Launch a public product catalogue and online storefront with a no-code visual builder — wired to the same items, prices and stock as the rest of your suite, no sync. | ₹399/month |
| Nidhi Ecommerce | Online Store & Commerce | Run a complete online store with a rich product-and-variant catalog, images, MRP handling and templates — always in step with your books and stock. | ₹399/month |
| Nidhi Forms | Lead Capture & Document Collection | Publish lead and query forms, run guided multi-step document collection (KYC, onboarding) with an OTP customer portal, and land every submission as a lead in one inbox. | ₹399/month |
| Nidhi Signage | Digital Signage | Pair any screen to a device, loop media playlists, and run menu boards, promotions and in-store displays from one dashboard. | ₹399/month |
| Nidhi Vendor Management | Procurement & Vendor Portal | Give suppliers an OTP vendor portal, share purchase orders and documents, message them in-thread, and turn vendor-uploaded invoices into draft bills — no email chase. | ₹399/month |
| Nidhi Invoice Designer | Document Design | A visual layout designer that drives your own custom invoice, quote and challan templates across every document your business sends. | ₹399/month |
| Nidhi Appointments | Appointments & Online Booking | Publish a booking page customers use without an account, run the day on a booking calendar, and turn a finished appointment into a draft invoice or POS sale. | ₹399/month |
| Nidhi Staff | Attendance & Wages | Mark attendance for a whole site in one save, run wages for a period on monthly, daily or hourly rates, and post what you pay straight into your accounts. | ₹399/month |
| Nidhi Loyalty | Loyalty & Rewards | Set what a point is worth, earn points automatically on every sale, run tiers, and let customers spend the balance as a discount on their next invoice. | ₹399/month |
| Nidhi Campaigns | WhatsApp, SMS & Email Marketing | Send WhatsApp, SMS and email campaigns to customers chosen from your billing data (who owes you, who stopped buying, who spent the most) and see what they billed afterwards. | ₹399/month |
| Nidhi Traces | Batch & Expiry Tracking | Lot numbers, expiry dates, first-expired-first-out picking, and a recall report that names every customer who received a bad batch. | ₹399/month |
| Nidhi Warehouse | Warehouse Management | Bin-level stock, put-away, guided pick and pack that checks every line with a scan, cycle counts and a morning dashboard for the shed. | ₹399/month |
| Nidhi Import Costing | Import & Landed Cost | Purchase orders in the supplier's currency, consignments, freight and duty split across the goods, and a goods-in-transit register. | ₹399/month |
| Nidhi Delivery | Delivery Management | A register of every delivery, riders picked from your staff, name, photo and signature at the door, and the cash-on-delivery money counted and signed off once a day. | ₹399/month |
| Nidhi Rentals | Rental & Hire Management | A register of the kit you hire out, bookings that can never double-book the same asset, returns with late days and damage, and a GST-correct bill with the deposit squared up. | ₹399/month |
| Nidhi Warranty & AMC | Warranty & AMC Management | A register of warranty cover on what you sold, AMCs billed on recurring invoices, a one-step "is it covered?" check, and a renewals desk. | ₹399/month |
| Nidhi Assets | Fixed Asset Register & Depreciation | An asset register, Section 32 written-down-value depreciation by block, disposals, and a year-end register your CA can file from. | ₹399/month |
Need accounting and stock together? The Books + Inventory Bundle is Nidhi Books and Nidhi Inventory on one account — two apps already counted above (₹798/month), not an extra app.
Nidhi Books
GST-ready accounting for small and growing businesses in India.
Nidhi Inventory
Real-time inventory across warehouses, branches and channels.
Nidhi POS
A mobile billing counter for your shop — barcode, UPI and GST-ready.
Nidhi Billing
Recurring plans, subscriptions and dunning — with MRR, LTV and churn built in.
Nidhi Storefront
Your public product website — built on the same data as your books and stock.
Nidhi Ecommerce
A full online store — rich product catalog, variants and images — in step with your books and stock.
Nidhi Forms
Publishable lead forms plus reviewed, multi-step document collection.
Nidhi Signage
Turn any screen into a menu board, promo display or in-store sign.
Nidhi Vendor Management
A supplier portal and procurement hub — share documents, message vendors, turn their invoices into bills.
Nidhi Invoice Designer
Design your own invoice, quote and challan layouts — visually, no code.
Nidhi Appointments
A public booking page for your business, wired straight into your bills.
Nidhi Staff
Mark the day, know what each person is owed, and post wages to your books.
Nidhi Loyalty
Points on every bill, redeemed as a discount on the next one.
Nidhi Campaigns
Offers and reminders to your own customers, picked from your own bills.
Nidhi Traces
Which lot it came from, and when it stops being sellable.
Nidhi Warehouse
Which bin it is in, not just how much you hold.
Nidhi Import Costing
What the goods cost to have here, not what the supplier invoiced.
Nidhi Delivery
Who took it out, and whether it arrived.
Nidhi Rentals
What is out, who has it, and when it comes back.
Nidhi Warranty & AMC
What is still covered, and which contracts are due for renewal.
Nidhi Assets
What you own, and what it is worth now.
Questions buyers ask about the catalogue
I only need GST billing for my shop — do I have to buy all these apps? +
My team has 12 people. Does the ₹399 go up with more users? +
If I use Nidhi Books and Nidhi Inventory together, do I enter my items twice? +
I run a school office — is 399apps for Schools one of these apps? +
Tell us your business — we'll point you to the one or two apps you need
Flat ₹399/month per app, unlimited users, cloud or self-hosted, no lock-in.