Cloud
Zero-ops. Multi-tenant. Daily backups, region-pinned, monitored 24×7. Fastest path to live.
- Live in minutes
- Auto-updates
- India data region default
₹399 per app, flat — never per seat, never per device
GST billing, inventory & accounting software — one screen, every device, ₹399 flat.
Built for Indian small businesses. The same single screen on the web, on the Android app, and installed on Windows or Mac — one subscription covers every device and your whole team, unlimited users.
One subscription runs everywhere
- Web Any browser Included
- Android Installable app Included
- Windows & Mac Install from the browser Included
- iPhone & iPad Runs in Safari Included
- 14-day cloud trial
- Self-host on your server
- White-label ready
- GST-friendly
21
Apps shipping
₹399/mo
Flat ₹399 per app
Unlimited
Users + exports, every plan
100%
Data ownership on self-host
Solutions by business type
Not sure which apps you need?
Start from your business, not the catalogue. Each kit is a ready-made set of apps — each app at flat ₹399/month, unlimited users on every plan.
₹1,197/mo
Retail & Kirana Counter Software
A fast billing counter, live stock and GST books — the three apps a shop actually runs on.
POSInventoryBooks
₹1,197/mo
Wholesale & Distributor Software
GST books, godown-wise stock and a supplier portal — built for buying in bulk and selling on credit.
BooksInventoryVendor Management
₹1,197/mo
Pharmacy & Multi-Outlet Software
Counter billing, batch-and-expiry stock and GST books across every outlet — on one account.
POSInventoryBooks
₹1,197/mo
Service & Freelancer Software
GST invoicing, your own invoice design and lead forms — for people who bill for time, not stock.
BooksInvoice DesignerForms
₹798/mo
Subscription & Recurring-Revenue Software
Recurring plans, dunning and GST books — for businesses that bill the same customers every month.
BillingBooks
₹1,596/mo
D2C & Online Store Software
A storefront, a full online catalogue, live stock and GST books — selling online on one set of data.
StorefrontEcommerceInventoryBooks
₹1,995/mo
Salon & Spa Software Kit
Online bookings, a counter that bills service and product together, your team's wages and a points scheme that brings clients back.
AppointmentsPOSStaffLoyaltyBooks
₹798/mo
Rental & Hire Business Software
For a tent house, equipment hirer or AV rental shop, 399Apps pairs Nidhi Rentals with Nidhi Books for ₹798/month with unlimited users: a fleet register, bookings that can never double-book the same asset, a due-back board, returns with late days and damage, and a GST-correct hire bill with the deposit settled.
RentalsBooks
The 399apps catalogue
Pick an app. Plug it in. Go.
Each product is small enough to grok in a day and serious enough to run a business on — GST billing, e-invoicing, inventory management and ledgers, all in one place.
Accounting & Finance
Nidhi Books
GST-ready invoicing, TDS-aware payments, P&L and Cash Flow, with audit-grade CSV and PDF exports.
Cloud
Self-host
Learn more
Inventory & Warehousing
Nidhi Inventory
Stock, SKUs, purchase orders, transfers, barcodes — one source of truth for every product you sell.
Cloud
Self-host
Learn more
Bundle
Books + Inventory Bundle
Books + Inventory, working as one — ₹798/month on the cloud.
Cloud
Self-host
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Point of Sale & Billing
Nidhi POS
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.
Cloud
Self-host
Learn more
Subscriptions & Recurring Billing
Nidhi 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.
Cloud
Self-host
Learn more
Online Store & Commerce
Nidhi Storefront
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.
Cloud
Self-host
Learn more
Online Store & Commerce
Nidhi Ecommerce
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.
Cloud
Self-host
Learn more
Lead Capture & Document Collection
Nidhi Forms
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.
Cloud
Self-host
Learn more
Digital Signage
Nidhi Signage
Pair any screen to a device, loop media playlists, and run menu boards, promotions and in-store displays from one dashboard.
Cloud
Self-host
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Procurement & Vendor Portal
Nidhi Vendor Management
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.
Cloud
Self-host
Learn more
Document Design
Nidhi Invoice Designer
A visual layout designer that drives your own custom invoice, quote and challan templates across every document your business sends.
Cloud
Self-host
Learn more
Appointments & Online Booking
Nidhi Appointments
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.
Cloud
Self-host
Learn more
Attendance & Wages
Nidhi Staff
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.
Cloud
Self-host
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Loyalty & Rewards
Nidhi Loyalty
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.
Cloud
Self-host
Learn more
WhatsApp, SMS & Email Marketing
Nidhi Campaigns
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.
Cloud
Self-host
Learn more
Batch & Expiry Tracking
Nidhi Traces
Lot numbers, expiry dates, first-expired-first-out picking, and a recall report that names every customer who received a bad batch.
Cloud
Self-host
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Warehouse Management
Nidhi Warehouse
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.
Cloud
Self-host
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Import & Landed Cost
Nidhi Import Costing
Purchase orders in the supplier's currency, consignments, freight and duty split across the goods, and a goods-in-transit register.
Cloud
Self-host
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Delivery Management
Nidhi Delivery
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.
Cloud
Self-host
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Rental & Hire Management
Nidhi Rentals
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.
Cloud
Self-host
Learn more
Warranty & AMC Management
Nidhi Warranty & AMC
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.
Cloud
Self-host
Learn more
Fixed Asset Register & Depreciation
Nidhi Assets
An asset register, Section 32 written-down-value depreciation by block, disposals, and a year-end register your CA can file from.
Cloud
Self-host
Learn more
Two ways to run it
Cloud convenience, or your-server control.
Every app on 399apps ships in both shapes. Start on the cloud and move later, or self-host from day one — same product, same support.
Self-host
Same product, your server. Full data ownership, your domain, your backups, your compliance posture.
- Custom-quoted licence
- Docker / bare metal
- Optional managed support
Why 399apps
Built like an engineer would build it.
No salesy bloat. No ten-tab dashboards. Just the workflows your business actually uses, made fast.
Small surface, real depth
Each app is small enough to grok in a day, deep enough to run a business on.
₹399 per app, flat
Every app is ₹399/month — for your whole team, unlimited users, never per seat.
Your data is yours
Encrypted on cloud. Fully self-hostable. Exportable any time, in standard formats.
Cloud-native infra
Hosted on Cloudflare + AWS, region-pinned to India by default. 99.9% target.
Self-host without pain
Single-binary or Docker deploys. Backups, upgrades and migrations are first-class.
White-label ready
Run any product under your own brand — domain, logo, colours, copy, the whole thing.
Compare & choose
Comparing accounting & GST software?
See how 399apps stacks up against Tally, Zoho Books, Vyapar and QuickBooks — and read our honest buyer’s guides for Indian small businesses.
Best software buyer’s guides
Honest, multi-vendor shortlists for accounting, GST billing and invoicing software in India.
Read the guideBest accounting software for small business (India)
Nidhi Books vs Zoho Books, TallyPrime and Vyapar on price, features and users.
Read the guideBest GST billing software in India
GST-compliant invoicing and e-invoicing tools ranked for value and compliance.
Read the guideAnswers: GST & accounting software questions
Short, direct answers on pricing, alternatives and switching to the cloud.
Read the guide Free business formats — open in Excel or Google Sheets, no signup: GST invoice formatQuotation formatProforma invoice formatDelivery challan formatBill book formatPurchase order format
FAQ
Frequently asked questions
Quick answers about pricing, hosting, white-label and how 399apps works in practice.
What is 399apps? +
399apps is a catalogue of 21 business apps for Indian small businesses: Nidhi Books, Nidhi Inventory, Nidhi POS, Nidhi Billing, Nidhi Storefront, Nidhi Ecommerce, Nidhi Forms, Nidhi Signage, Nidhi Vendor Management, Nidhi Invoice Designer, Nidhi Appointments, Nidhi Staff, Nidhi Loyalty, Nidhi Campaigns, Nidhi Traces, Nidhi Warehouse, Nidhi Import Costing, Nidhi Delivery, Nidhi Rentals, Nidhi Warranty & AMC, Nidhi Assets. Each app is a flat ₹399/month with unlimited users — use one or run them together on one account — on our cloud or self-hosted on your server. Browse them all at 399apps.com/apps/.
How much does 399apps cost? +
Every app is a flat ₹399/month on the 399apps cloud. So Books alone is ₹399, Books + Inventory is ₹798, and so on — always with unlimited users and unlimited exports, no per-seat charges. Self-hosted and enterprise deployments are custom-quoted — just talk to us.
Cloud or self-hosted — which should I pick? +
Pick cloud if you want zero-ops, daily backups and the fastest path to live. Pick self-host if you have a compliance, data-locality or cost-per-scale reason to keep things in-house — we ship the same product as a single-server licence.
Do you offer white-label? +
Yes. Every product can be rebranded under your domain, logo and colours. Talk to us about white-label deployments for accountants, resellers or industry-specific Books / Inventory roll-outs.
Is there a free trial? +
Yes. Every cloud product has a 14-day trial — no card required. Self-hosted plans come with a 7-day evaluation licence.
Who builds and maintains 399apps? +
399apps is built, deployed and maintained by shabuilds (shabuilds.tech) — a small, focused product studio that ships software like real engineers, not like a typical agency.
Where is the data hosted? +
Cloud data is hosted on Cloudflare and AWS infrastructure with India-region defaults. On self-host, your data never leaves your server.
Does 399apps handle GST e-invoicing, e-way bills and GST returns? +
Yes. Nidhi Books generates GST-compliant tax invoices with the IRN and signed QR invoice for B2B sales above the e-invoicing threshold, and creates e-way bills for goods movement. Sales and purchase data is organised so your GSTR-1, GSTR-3B and GSTR-2B reconciliation is straightforward, with TDS and ledger entries posted as you go — so your CA gets clean books.
Which kinds of businesses use 399apps? +
Retail billing counters, kirana stores, traders and wholesalers run their day-to-day on 399apps. Nidhi Inventory handles inventory management and stock reconciliation across multiple godowns, so traders and wholesalers always know real stock versus book stock, while retail shops bill fast at the counter.
Talk to a human
Not sure which app fits? Let us scope it with you.
A 20-minute call. We will understand your business, recommend the right product (or tell you we are not a fit), and quote honestly.