Sivolo reads a conversation you already have and analyses it against the UK Legal Framework for Controlling & Coercive behaviour. Your messages are encrypted in transit and deleted from our servers when the analysis finishes. When a longer analysis runs in the background, your finished result is held only briefly — encrypted so only you can open it — then delivered to your device and deleted from our servers. Every finding stays tied to a real, time-stamped message.
Sivolo’s built-in Prepare guide walks you through getting a chat out of its app, one step at a time — WhatsApp’s own export, a free app for Android texts, or a Mac for iMessage — or you can simply paste the text in.* For a history that spans several years, you can choose one report for the whole of it, or one per year.
* Note on iMessage: iPhone has no one-tap chat export. Prepare shows two routes — a Mac signed in to the same Apple Account, or iMazing, a paid app from another company — or you can copy and paste messages straight into Sivolo. WhatsApp exports from the app itself; Android texts need the free SMS Backup & Restore app, which Prepare also walks you through.
Tell Sivolo who is who and what kind of relationship it is, and add any background you want it to know — including journal entries you choose. Context sharpens the analysis but is never required. It is sent with the conversation for that analysis, and saved with the report — encrypted on your device, and in Secure Cloud Backup if it’s on.
The conversation is assessed against Section 76 of the Serious Crime Act 2015 and the United Kingdom (England and Wales) CPS guidance on controlling or coercive behaviour. Large logs are read in passes, then reconciled into one picture. This runs on Sivolo’s secure backend so you can close the app and come back to a finished result. Your messages are held encrypted while the job runs and deleted when it finishes; the finished result is encrypted so only you can open it, held briefly until you collect it, then deleted from our servers.
Before your first analysis, Sivolo asks your agreement to send the conversation to Anthropic, whose AI model does the analysis — you can withdraw it at any time in Settings. Every account includes one free analysis of a shorter conversation; after that, the app shows you the price before you pay.
A longer analysis keeps running on our secure backend even if you close the app or lose signal. Come back whenever suits you and collect the finished result — it’s sealed so only your device can open it. By default Sivolo sends a brief email headed “Your package has been delivered”, with no links and no details, and you open the app yourself to collect it. It comes from sivolo.app, so turn it off if anyone else can see your inbox. Alerts on your phone stay off unless you turn them on.
Findings are grouped into four evidence lenses with the exact messages, timestamps and a plain-English explanation of why each one matters. You can add notes, see surrounding context, and flag anything.
A built-in education library explains coercive control, reactive abuse, trauma bonding and recovery in plain language — curated, not generated, so you can trust what you read. A private self-recognition Q&A helps you reflect: your answers are never sent or shared, and stay on your phone only if you choose to save them.
Produce a professional PDF report for police, an IDVA or a solicitor. With Sivolo Plus, your Trusted Circle lets you share a report with someone you choose: they open it in their browser with an access code, and you can take access back at any time.
Coercive control is a single pattern, but the law asks several different questions about it. Sivolo answers each one separately so the picture is complete — and so the same message is never double-counted.
Shows the other party’s provocation — a threat, an accusation, a coercive demand — paired side by side with your response. This protects a defensive reply from being read in isolation and misused as “evidence” you were the aggressor.
Surfaces moments where the other party admits intent, awareness or control — “I did it to punish you”, “I knew that would hurt you”, “you’re not allowed to see them.” Direct evidence, in their own hand.
Identifies fear, compliance, walking-on-eggshells language and normalisation — the cumulative psychological harm that the law treats as the serious effect at the heart of the offence.
Scores established patterns — monitoring, isolation, degradation, threats, DARVO, coercive ultimatums, manufactured jealousy, love-bombing — by how pervasive each one is across the whole history.
Each pattern category is scored from 0–100 based on how often it appears and how serious each instance is — not a simple count. Two conversations of the same length can score very differently.
An overall risk level reflects the strongest categories — and where several independent patterns each reach High, the sustained, multi-strand nature of the control is itself treated as a serious-harm signal.
The pattern categories are drawn from the United Kingdom (England and Wales) Crown Prosecution Service guidance, Controlling or Coercive Behaviour in an Intimate or Family Relationship — the same framework police and prosecutors use to assess these offences in England & Wales — so every result maps to a recognised legal reference point.
Sivolo organises and evidences material against the legal framework. It does not reach legal conclusions or diagnose anyone — that remains for qualified professionals and the courts.


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When you’re ready to act, Sivolo produces a professionally formatted PDF designed for police, IDVAs and solicitors — clear enough to read quickly, rigorous enough to stand up to scrutiny.


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A pattern doesn’t stop when an analysis ends. The Journal keeps a private, dated record of what happens next — and you can bring it into your next analysis as background.

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One account, on your phone and in your browser.

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Native app with Face ID / Touch ID unlock and the full set of privacy safeguards. Coming soon to the App Store.
Native app with fingerprint, face or PIN unlock and the full set of privacy safeguards. Coming soon to Google Play.
With Secure Cloud Backup on, your reports and journal are in any browser at web.sivolo.app — handy for longer exports on a larger screen. Analyses and Sivolo Plus are bought in the phone app, and app lock and Crisis Capture are built for your phone.
Coercive control is a pattern of behaviour used by one person to dominate another, through isolation, monitoring, intimidation, degradation, threats or control of everyday life. Unlike a single incident, it is the repeated, cumulative pattern that causes harm. In England and Wales it is recognised in law as controlling or coercive behaviour in an intimate or family relationship.
Yes. Controlling or coercive behaviour in an intimate or family relationship is a criminal offence under Section 76 of the Serious Crime Act 2015 in England and Wales. The Crown Prosecution Service publishes prosecution guidance, Controlling or Coercive Behaviour in an Intimate or Family Relationship, on how the offence is assessed and prosecuted.
Because coercive control is a pattern rather than a single event, evidence usually means showing repeated behaviour over time, often through message histories, with each example tied to a date and to a recognised category of controlling behaviour. Sivolo analyses a conversation you already have against the CPS framework and organises the findings into a clear, time-stamped report you can share with police, an IDVA or a solicitor.
Reactive abuse describes a defensive or emotional reaction from someone who is being provoked or controlled, which can then be misrepresented as if they were the aggressor. Sivolo surfaces the other party's provocation alongside the response, so a reaction is not read in isolation.
Sivolo is built around your safety and privacy. Your journal, recordings and backup are encrypted on your phone with a key we never receive. A conversation you send for analysis is encrypted in transit, read by our backend and by Anthropic to produce your report, and deleted from our servers when the analysis finishes (our privacy policy has the detail). When a longer analysis runs in the background, your finished result is held only briefly — encrypted so only you can open it — then delivered to your device and deleted from our servers. You stay in control of who sees any report.
Yes. Sivolo produces a professionally formatted PDF report, with an overall summary, quoted and time-stamped messages, and each finding mapped to the relevant point of the CPS framework, designed to be shared with police, IDVAs and solicitors.
No. Sivolo organises and evidences material against the legal framework; it does not diagnose anyone or reach legal conclusions. Those judgments remain for qualified professionals and the courts.
Sivolo is not a crisis service. If you are in immediate danger, call your local emergency number — 999 in the UK, 112 across Europe, 911 in the US and Canada. In the UK, the free 24-hour National Domestic Abuse Helpline is 0808 2000 247.
Start free with the education library and your first analysis. Your journal and backup are encrypted so only you can open them, and your results are stored only briefly, encrypted the same way.