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
5
Products shipping
₹399/mo
First app · then ₹99 each
Unlimited
Users + exports, every plan
100%
Data ownership on self-host
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 — ₹399 + ₹99 = ₹498/month on the cloud.
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.