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 first app · ₹99 each add-on
Affordable billing, inventory & GST software for Indian small businesses.
Run your GST billing and inventory on a tight, well-built SaaS — on our cloud, or fully self-hosted on your own server.
- 14-day cloud trial
- Self-host on your server
- White-label ready
- GST-friendly
10
Apps shipping
₹399/mo
First app · then ₹99 each
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 — priced from the same ₹399 + ₹99 model, unlimited users on every plan.
₹597/mo
Retail & Kirana Counter Software
A fast billing counter, live stock and GST books — the three apps a shop actually runs on.
POSInventoryBooks
₹597/mo
Wholesale & Distributor Software
GST books, godown-wise stock and a supplier portal — built for buying in bulk and selling on credit.
BooksInventoryVendor Management
₹597/mo
Pharmacy & Multi-Outlet Software
Counter billing, batch-and-expiry stock and GST books across every outlet — on one account.
POSInventoryBooks
₹597/mo
Service & Freelancer Software
GST invoicing, your own invoice design and lead forms — for people who bill for time, not stock.
BooksInvoice DesignerForms
₹498/mo
Subscription & Recurring-Revenue Software
Recurring plans, dunning and GST books — for businesses that bill the same customers every month.
BillingBooks
₹696/mo
D2C & Online Store Software
A storefront, a full online catalogue, live stock and GST books — selling online on one set of data.
StorefrontEcommerceInventoryBooks
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
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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 — ₹399 + ₹99 = ₹498/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
Learn more
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
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 first app, ₹99 after
Your first app is ₹399/month; every extra app or add-on is ₹99 — 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 FAQ
Frequently asked questions
Quick answers about pricing, hosting, white-label and how 399apps works in practice.
What is 399apps? +
399apps is a small, opinionated app store of business SaaS — Nidhi Books (accounting), Nidhi Inventory (stock) and a Books + Inventory bundle. Every product is available on our cloud or fully self-hostable on your server.
How much does 399apps cost? +
Your first app is ₹399/month on the 399apps cloud. Every additional app or add-on is ₹99/month. So Books alone is ₹399, Books + Inventory is ₹498, 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.