Comparison
Latch vs WhatsApp + Excel + Gmail
It is Friday, 8:45 PM. Your sales head is replying to a tower group with one thumb. Your Gmail has a thread from 2024 you need for a RERA response by Monday. None of this is irrational — you picked that stack because every buyer already has WhatsApp. But it is not a reasonable place to finish.
Where it breaks
Four failure modes, all of which we have watched happen on Pune projects this year.
Failure 1 — the RERA trail you cannot produce
A buyer files a complaint. RERA asks for the communication history around allotment or a specific payment demand. You open the Tower B WhatsApp group, scroll, export the chat. It is a 14,000-line text file with nine months of birthday wishes and forwarded videos. No way to filter by actor, no way to prove who said what, no way to show the plinth delay was weather-driven. You hand over the text file. You hope.
Failure 2 — the sales head on 24/7 call
She took Wednesday off. Between 9 AM and 11 PM, 37 buyers sent her WhatsApp messages. Six were the same question. Nine were from a father-in-law of a buyer. Thursday morning: 237 unread. She replies to the loud ones. The quiet 29 never get a reply. Three months later one of them sends a legal notice because "nobody responded."
Failure 3 — buyer-to-buyer contagion in a 300-person group
A buyer posts at 10:47 PM: "I have been waiting two months for my sale-deed copy." One says "same." Another says "same here." Within twenty minutes, fourteen buyers who were perfectly calm that morning are now angry. WhatsApp groups convert one angry buyer into 299 angry buyers in an afternoon. That is not a bug. That is what group chat is.
Failure 4 — team churn wipes the context
Your sales head resigns in July. Her personal inbox goes with her. The next person inherits a WhatsApp group with 300 buyers and no history of what was promised to which buyer on which date. Three years of post-booking context leaves the building with her. The buyers notice.
What Latch does differently
Not a feature matrix. A map of the four failures to the specific thing Latch does.
Audit log
Every write in Latch — creating a buyer, editing a unit, recording a payment, sending a broadcast, closing a ticket, uploading a document — is stamped with who did it, when, and what changed. A table, not a chat export. Filter by buyer, by date, export. That is the file you hand to RERA.
Portal / app split
Your team runs work in the web portal. Buyers ask in the app, on tickets, with a category and a reference to their unit. The sales head triages a queue, not a group chat. Role-based access means no single person carries every decision.
White-labelled unit-per-buyer app
There is no group. Each buyer opens your app and sees their flat, their schedule, their receipts, their construction photos. One buyer's frustration does not propagate to 299 others. Broadcasts still exist for the "slab poured" message — titled posts, one-way, no argument stream.
Per-tenant database
Every conversation, payment, ticket, document lives in your database in AWS Mumbai, named after your firm. When the sales head leaves, she hands over a login, not a laptop. When you offboard from Latch, you take the full database with you.
"But my buyers are on WhatsApp — why would they download a new app?"
Your buyer already has WhatsApp. He uses it for his wife, his mother, his building society. A new app feels like being told to move out of that room.
Part 1 — they are not abandoning WhatsApp. The Latch buyer app is not for chat. It is for his flat. Demand letter, next payment, receipt, Tower B slab photo. That is a document and status job. WhatsApp is a terrible document manager — PDFs expire, images get compressed.
Part 2 — one tap beats scrolling 300 messages. The average buyer in a 300-person group reads twenty messages before glazing. The fifth time he wants to check whether the next demand is on the 15th or 25th, he calls your sales head. In Latch, the schedule is one tap from home.
Part 3 — buyers who see their receipts in-app stop calling. The volume of "did you get my payment" and "when is slab done" calls drops. Not to zero. It drops. Your sales head goes home on Wednesday. Nobody sends a legal notice in September because the person who got ignored in July has a dashboard now.
Where WhatsApp + Excel is genuinely better
- —If you are handing over fewer than twenty units a year — the stack is free and your team already knows it. Come back at fifty.
- —Zero training cost. A new tool is always a tax. If your team is hostile to software, we will fail in the first month.
- —No vendor risk. WhatsApp will not raise its price. Model 2 (on-prem, ₹4,99,000) exists for exactly this worry — your data on your own server, you can fire us, portal keeps working.
FAQ
Do we lose the WhatsApp group entirely?
No. You keep it. Most tenants keep the group for community chat. Transactional chat (payments, documents, construction) migrates to the app over the first three months because the app is faster for it.
How long until my team adopts it?
Two to three weeks for the sales head and accounts team, if they do thirty minutes a day for the first week. Site head usually takes a week longer.
What if buyers don't download the app?
The portal keeps working. Buyers still get email receipts, demand letters, WhatsApp notifications. App adoption typically climbs from 30% month one to 70%+ by month four as buyers tell each other.
What about family members on the WhatsApp group?
Today, one buyer login = one buyer. Multi-user access (co-applicant, family) is on the roadmap. Until then, the primary allottee downloads the app.
Is data migration from our Excel painful?
Our onboarding team runs the first migration. Bring the spreadsheet you have. Worst-case single-project migration we have seen took two working days.
Ready to see it?
Fifteen minutes. Bring your current stack. We will tell you honestly whether Latch fits your next project, or whether WhatsApp + Excel is still the better answer for another six months.