Udhaar, orders, payments —
sab yaad, bina register ke.
Dukaan pe busy ho? Bas WhatsApp pe bol do — “Gupta ji ka ₹8,500 udhaar, 10 tareekh ko maangna.” Second Brain yaad rakhega kiska kitna baaki hai, kab maangna hai, aur kaunsa order kab dena hai.
⏱️ Sign up, connect WhatsApp, send your first reminder — all in under a minute.
Second Brain
online
Gupta ji ka ₹8,500 udhaar, 10 tareekh ko maangna
💰 Noted. 10 Oct, 10:00 AM — ask Gupta ji for ₹8,500.
“Supplier ko 40 hazaar ki payment Monday ko karni hai”
✅ Monday, 10:00 AM — pay supplier ₹40,000.
Kiske paas kitna baaki hai?
3 customers: • Gupta ji — ₹8,500 • Pinky boutique — ₹3,200 • Ramesh (tea stall) — ₹1,150
Dukaan chalana = 100 cheezein yaad rakhna
Customers, suppliers, staff, bills — and all of it lives in your head or a register.
Udhaar register mein likha tha — register hi kho gaya.
Supplier ki payment late hui — agla maal ruk gaya.
Customer ko bola tha “Saturday tak order ready” — bhool gaye.
Bill ya license renewal ki date nikal gayi — penalty lagi.
Staff ko kitna advance diya — hisaab dimag mein hi hai.
Repair ka phone aaya tha — kiska, aur kab dena tha?
Ab nahi. Bas bol do — Second Brain hisaab aur yaad dono rakhega. 🙌
Bolo aur bhool jao
Tap a situation from your day at the shop.
Know exactly who owes you, and when to ask.
Busy with a customer? Send a 5-second voice note. It sorts it out.
Second Brain
online
Poochho — hisaab turant
Anything you told it about customers, suppliers or staff, back in seconds.
Chhoti dukaan ho ya badi — yaad rakhna sabko padta hai
Kirana & general stores
- “Gupta ji ka ₹8,500 baaki”
- “Dairy payment har 3 tareekh”
Wholesalers & distributors
- “Retailer collections Friday”
- “Truck Monday subah aayega”
Salons & boutiques
- “Bridal booking 22 Nov”
- “Fabric order Tuesday tak”
Repair & service shops
- “Ravi ka phone Thursday ready”
- “Spare part order karna”
Tailors & home businesses
- “Blouse delivery Saturday”
- “Tiffin ka hisaab har Sunday”
Contractors
- “Labour payment Saturday”
- “Site pe cement Wednesday”
Shuru karna itna aasaan hai
- 1
Create a free account
Takes 30 seconds. No app to download, no card needed.
- 2
Connect your WhatsApp
Send a one-time code to our WhatsApp number — that's it, you're linked.
- 3
Send anything. Relax.
A task, a date, a promise, a detail — typed or as a voice note. It reminds you on time and remembers the rest.
Because you're too busy to write everything down
| Second Brain | Register / billing app | |
|---|---|---|
| Note udhaar in 5 seconds, by voice | — | |
| Reminds you when to collect or pay | Some apps | |
| Works from the WhatsApp you already use | — | |
| Remembers rates, orders & promises | — | |
| Never gets lost or wet 😄 | App only |
Much more than a reminder bot
It keeps learning who and what matters to you — so it gets more useful every week.
Reminders & tasks
One-time, daily, monthly, yearly — set from a single sentence, delivered on WhatsApp in your timezone.
Memory
Tell it where you kept something, a number, a detail — ask for it back anytime, in plain words.
People
It remembers who's who — what you owe them, what they owe you, what you promised.
Promises & follow-ups
Said “I'll get back to you”? It tracks it and nudges you before it goes cold.
Voice notes
Too busy to type? Just speak — Hindi, English or a mix of both.
Morning briefing
Start the day with one message: today's reminders, dues and follow-ups.
Snooze & reschedule
“Kal karta hoon” works. So does “1 ghante baad yaad dilana”.
Web dashboard
Everything lives on WhatsApp; log in here anytime for the full view and search.
Aapki baatein, sirf aapki.
Your reminders and memories are never sold, never shared, and never used for ads. Just say “forget that…” to delete a memory, or delete your whole account anytime from settings.
Start free. Seriously.
Free covers real day-to-day use. Paid plans with higher limits are coming soon.
Free
Available₹0forever
- 500 AI-understood messages / month
- 100 saved memories
- 20 voice notes / month
Pro
Coming soon₹149/ month
- 1,000 AI-understood messages / month
- Unlimited memories
- Unlimited voice notes
Pro+
Coming soon₹299/ month
- 3,000 AI-understood messages / month
- Unlimited memories
- Semantic search
Business
Coming soon₹299/ seat / month
- Unlimited AI-understood messages
- Team features
- Pooled usage across seats
Aapke sawaal
Is this an accounting or billing app?+
No. It's a memory and reminder assistant. Keep using your billing software for GST invoices — use Second Brain to remember who owes what, what you promised, and when to follow up.
Will it message my customers for payment?+
No. It only messages you — it reminds you whom to ask and how much. The conversation with your customer stays yours.
Do I need to install an app?+
No. You create a free account on this website once, connect your WhatsApp, and from then on everything happens inside WhatsApp. The web dashboard is optional.
Kya yeh Hindi samajhta hai?+
Haan! Hindi, English, Hinglish — typed or as a voice note. Write the way you normally text; there's no special format to learn.
Is it a chatbot I can ask anything?+
No — and that's on purpose. It's focused on one job: remembering your tasks, dates, promises and details, and reminding you at the right time. It does that job really well.
Is my data private?+
Yes. Your messages and memories are yours — never sold or shared. You can delete a memory, or your whole account, anytime.
What if I ignore a reminder?+
Reply “1 ghante baad” or “kal” and it snoozes. Reply “done” and it's closed. Anything left open shows up in your morning briefing.
Is it really free?+
Yes — the Free plan covers real day-to-day use, not a crippled trial. Paid plans with higher limits are coming soon.
Aaj se hisaab dimag mein nahi, WhatsApp pe. 🏪
Set up in under a minute. Note your first udhaar today.
Start free — takes 30 seconds →Already signed up? Open Second Brain on WhatsApp