How it works

From thousands of messages to evidence you can see

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 never retained on our servers. 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.

Export your messages

Use your phone’s built-in export to save a chat from WhatsApp or Android SMS, or simply paste the text — including from iMessage.* Long histories are handled automatically by splitting them into date ranges.

* Note on iMessage: iMessage has no one-tap chat export. You can copy and paste messages straight into Sivolo, or use a reputable third-party export utility to produce a text file. WhatsApp and Android SMS both export natively from the app.

Add a little context (optional)

Tell Sivolo who is who, the type and length of relationship, and any key dates or incidents. Context sharpens the analysis but is never required, and is stored only on your device.

Sivolo analyses the conversation

The conversation is assessed against Section 76 of the Serious Crime Act 2015 and CPS statutory guidance on coercive and controlling 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 processed in memory and never retained; the finished result is encrypted so only you can open it, held briefly until you collect it, then deleted from our servers.

Running in the background

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. You’re notified when it’s ready only if you opt in; notifications stay off by default, for your safety.

Review your results

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.

Learn what you’re looking at

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.

Export and share, safely

Produce a professional PDF report for police, an IDVA or a solicitor — or securely share specific findings with a trusted contact. You stay in control of who sees what, and can revoke access at any time.

The evidence model

Four lenses on the same conversation

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.

Reactive abuse

Were you provoked into a reaction?

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.

High-value admissions

What did they admit in their own words?

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.

Victim impact

What effect did it have on you?

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.

Pattern categories

Which recognised patterns appear?

Scores established patterns — monitoring, isolation, degradation, threats, DARVO, coercive ultimatums, manufactured jealousy, love-bombing — by how pervasive each one is across the whole history.

Scoring, in plain English

How a pattern becomes a score

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.

  • Absent — no evidence found
  • Low (1–39) — one or two minor instances
  • Medium (40–64) — a repeated pattern
  • High (65–84) — multiple serious instances
  • Critical (85–100) — severe and pervasive

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 Crown Prosecution Service statutory guidance on Controlling or Coercive Behaviour — 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.

Sivolo monitoring & surveillance pattern detail
Sivolo pattern categories scored against the CPS framework

Actual app screens · example data

The output

A report built to be taken seriously

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.

  • Cover page, overall risk summary and pattern overview
  • Full evidence appendices with quoted, time-stamped messages
  • Each finding mapped to the relevant point of the CPS framework
  • An audit trail of how the analysis was produced
  • Optional cryptographic timestamping for evidential credibility
Sivolo PDF report cover page — overall critical risk and legal framework
Sivolo PDF report evidence page — quoted, time-stamped messages by category

Actual PDF report · example data

Wherever you are

On your phone and in your browser

One product, the same features, across the devices you already use.

web.sivolo.app
Sivolo running in a web browser — full analysis results on a larger screen
The same Sivolo results on a phone

Actual app screens · example data

iPhone & iPad

Native app with Face ID / Touch ID unlock and the full set of privacy safeguards. Available on the App Store.

Android

Native app with fingerprint, pattern or PIN unlock, and direct sharing from WhatsApp. Available on Google Play.

Web

The full experience in your browser at web.sivolo.app — useful for working with longer exports on a larger screen.

Common questions

Coercive control & Sivolo, in plain English

What is coercive control?

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.

Is coercive control a crime in the UK?

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 statutory guidance on how the offence is assessed and prosecuted.

How do I evidence or prove coercive control?

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.

What is reactive abuse?

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.

Is Sivolo private and confidential?

Sivolo is built around your safety and privacy. You can use it without giving your name or email, your messages are encrypted in transit and never retained on our servers. 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.

Can I use a Sivolo report with the police or a solicitor?

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.

Does Sivolo diagnose abuse or decide guilt?

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 999. In the UK, the free 24-hour National Domestic Abuse Helpline is 0808 2000 247.

See it for yourself

Start free with the education library and your first analyses — stay as anonymous as you choose. We never keep your messages, and your results are stored only briefly, encrypted so only you can open them.

Compare editions How we protect you