Freelance · Design
The third revision was never in the deal.
Scope, revision count and what costs extra are captured while you're still on the call — so “one more look” already has a price you both accepted.
Shared via email
Your word, on the record.
Sigil listens with permission, finds the terms you both agreed to, and turns them into a plain-language contract you review and sign together — before memories diverge.
Ravi Menon will repaint the second-floor office — walls,
trim, and one accent wall — in the shades chosen on site.
Work starts Monday 3 August and finishes Friday 7 August.
Meera Iyer will pay ₹45,000: half at start, half at finish.
Any extra rooms are quoted and agreed before that work begins.
Both parties reviewed these terms and accepted them.
Ravi Menon will repaint the
second-floor office in the shades
chosen on site, by Friday 7 August.
Meera Iyer will pay ₹45,000 —
half at start, half at finish.
Parties R. Menon · M. Iyer
Accepted 14 Jul 2026, 14:36 IST
Recorded with consent 14:32 IST Hash 8f3a…c21 v1.0
The problem
Two memories, no record
Verbal agreements are real. Proving them is the problem.
When there's no shared record, there are two honest memories and no way to settle between them. Nobody is lying. The terms simply never got written down while they were still fresh.
Meera Iyer · Recollection
“We agreed ₹40,000, finished by month-end. The accent wall was part of the price.”
Ravi Menon · Recollection
“We said ₹45,000, done by Friday. The accent wall was quoted on top.”
Shared record
v1.0 · reviewed and accepted by both · 14 Jul 2026
₹45,000, finished by Friday 7 August, accent wall included, any extra rooms quoted before that work starts.
A record doesn't decide who remembered correctly. It removes the need to — because both people read these terms and accepted them on the day the work was agreed.
How it works
Consent to record, in eight steps
From the first yes to a sealed record.
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Record with consent
Both people see and hear that recording has started, and each gives an affirmative yes before anything is captured. No consent, no recording — in many places recording without it is unlawful, and Sigil won't begin without it.
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Understood on the device
A small language model reads the conversation for parties, scope, deliverables, payment, dates, obligations, conditions and acceptance. The conversation is understood on the device — not shipped to a cloud to be read.
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Catch what's missing
If a required term is vague or absent, Sigil asks one focused question instead of guessing. “What payment amount and completion date have both parties agreed to?”
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Drafted in plain language
You get a short contract written the way people actually speak, with no unnecessary legalese. Every term traces back to something that was said out loud.
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Reviewed together
Both parties see the structured terms and can correct, edit or strike anything before accepting. Nothing is signed while a term is still wrong.
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Confirmed and signed
Each party approves explicitly, using supported electronic signature or acknowledgment methods. Approval is always a deliberate act, never something Sigil infers.
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Preserved and shared
The record is timestamped, hashed for integrity, and versioned with a full audit trail. Each party gets their own copy by email, SMS or WhatsApp.
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Ready for what follows
An accepted record will be able to raise an invoice, schedule payment reminders, carry GST information, or hand off to other business tools you authorize. Planned, not shipped — we'll say so clearly when it ships.
Who it's for
People who agree out loud
The deal was clear at the time.
Sigil is built for work that gets agreed in person, on site, or over a phone call — and written down later, if at all.
Trades · On site
The extra circuit was agreed in a hallway.
A two-minute change discussed at the job becomes a dated addition to the record, with the revised amount, before the work starts.
Shared via WhatsApp
Wholesale · Credit
The credit terms lived in a phone call.
Quantity, rate, credit period and the date payment falls due are written down the day the order is placed, not reconstructed at the end of the month.
Shared via SMS
Events · Catering
The headcount changed a week before the wedding.
The original count, the revised count, and who approved the change each carry their own timestamp and version.
Shared via WhatsApp
Building a marketplace or a gig platform? Sigil will be available as an API.
Talk to us about the APIPrivacy and trust
On-device by design
The conversation stays on the device.
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Read where it's recorded
The small language model runs on the phone in your hand. The audio and the transcript are understood there — they aren't uploaded to be read by a server, or by us.
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Consent before capture
Recording begins only after a visible and audible notice and an affirmative yes from both parties. Either person can stop it at any point.
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An integrity layer you can inspect
Every record carries a timestamp, a content hash, its version history, and an audit trail of what happened and when. You can read all of it.
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Your copy is yours
Each party receives their own copy by email, SMS or WhatsApp. Sharing it further is your decision, not a default.
Record footer
Specimen
- Record ID
- SGL-2026-0714-0093
- Created
- 14 Jul 2026 · 14:32:07 IST
- Parties
- 2 · both accepted 14:36:41 IST
- Integrity
- SHA-256 8f3a91c4…b07dc21
- Version
- v1.0 · 3 revisions before acceptance
- Audit
- 12 events · consent → acceptance
- Delivery
- WhatsApp · email · both confirmed
When it goes further
Evidence, not proof
When a deal becomes a dispute.
In most places, an agreement made out loud is already a contract.
What legal systems generally care about is what the two of you actually agreed — a clear offer, an acceptance, and an intention to be bound — not whether anyone typed it up. So when a disagreement reaches a mediator, an arbitrator or a judge, the question is rarely “was there a deal?” It is “what can either of you show?” That is the question Sigil is built for, and the answer gets prepared on the day you agree — not months later, when it is needed.
01
Made at the time
A record created while the deal is being struck sits very differently from an account reconstructed months later, once a dispute has given both sides a reason to remember it their own way.
02
Both sides, not one
Consent to record came from both people, and both reviewed and accepted the same terms. It isn't one party's private note, or a recording the other person never knew about.
03
Unchanged since acceptance
A content hash and version history let anyone check that the document in front of them is the one that was accepted — not a copy edited afterwards by whoever it suited.
04
A sequence, not a snapshot
The audit trail shows consent, the questions asked, each revision and both acceptances, with times — so how the agreement came together can actually be followed.
Those four qualities are what tend to make a record persuasive. They are not a guarantee of anything. Whether a record is admitted at all, and what weight it is given, is for the court or tribunal to decide — under its own rules of evidence and the law that applies to your agreement.
Sigil's job is to make sure you have something solid to bring. What happens once you are there is not ours to promise.
What Sigil is — and isn't
Read this part twice
We'd rather tell you where the line is than let you find it later.
- Oral agreements
- In most legal systems an oral agreement can form a binding contract, subject to specific exceptions.
- Electronic records
- UNCITRAL Model Law on Electronic Commerce, 1996 And the Model Law on Electronic Signatures, 2001 — the templates most national e-signature laws are built from.
- Usually needs more than an app
- Land, wills, powers of attorney and certain guarantees commonly require writing, witnessing, notarisation or registration.
General information, not legal advice. Which law applies to your agreement depends on the parties, the transaction and what you agreed — not on where you happen to be reading this. Laws change, and this summary is not a substitute for advice from a qualified lawyer in your own jurisdiction.
Sigil does
Create structured, authenticated, evidence-ready records of what two parties said they agreed.
Capture the consent, the terms, the review, and each party's explicit acceptance, with timestamps.
Give both sides the same copy of the same document, at the same time.
Protect the integrity of that record with hashing, version history and an audit trail.
Sigil doesn't
Make an agreement enforceable. Enforceability depends on applicable law, the transaction, the parties, their capacity, their consent, how the agreement was executed, and the jurisdiction.
Replace qualified legal advice. For anything that matters, talk to a lawyer.
Bypass statutory requirements. Some documents must be in writing, witnessed, registered, notarised or stamped, and no app can satisfy those for you.
Guarantee that a record will be admitted or accepted by any court. What evidence a court accepts is a matter for that court.
Treat a voice as an identity document. Whether a particular signing method is legally recognised depends on the method and the jurisdiction.
In short
Sigil helps you make a clear, shared, well-evidenced record of an agreement while both people still remember it the same way. Whether that agreement is enforceable is a separate question, answered by the law and the facts — not by us.
Early access
In private development · 2026