Delta vs Kadu: which AI assistant for your physiotherapy assessments and notes?

Delta and Kadu are two AI assistants that help self-employed physiotherapists write their assessments and session reports, from dictation or from what is said during the session.

This page compares them on note-taking, documents, patient follow-up, data and price. It is published by Delta. We have tried to be as fair as possible, including where Kadu does better. Information about Kadu comes from its website, checked on 15 October 2026.

At a glance

• Kadu suits you if you want a complete physiotherapy tool built around the BDK assessment, with a diary, online booking and home visit rounds.
• Delta suits you if your priority is a clear note after every session and a record that traces the patient's progress, with AI processing in France.

Kadu in a few lines

Kadu presents itself as the assistant for self-employed physiotherapists. According to its website, the project started in early 2026. It was built with self-employed physiotherapists, including one in Étaples who used it from the first version. Its founder says he is not a physiotherapist and comes from the software industry. Since September 2026, Kadu has also opened to other professions, such as occupational therapy and psychomotor therapy, as a pilot. The number of users is not stated, and we did not find the name of the publishing company on the pages we read.

Kadu drafts a BDK from your dictation. It offers a Live mode that transcribes the session with the patient's consent, SOAP reports, letters to the doctor and measurement charts. It also includes a diary, online booking and home visit rounds. It is a web app that works on a computer, tablet and phone.

Delta in a few lines

Delta is the clinical assistant for mental health and allied health professionals, including physiotherapists. You take notes in two ways. During the session, Delta transcribes what is said. Or, after the session, you dictate your observations. You can also add written notes.

Delta then generates the session report and updates the patient record. It also drafts assessments, letters and certificates, adapted to the profession. It works in the browser, with a Mac and Windows app recommended for sessions.

What sets them apart

How you take notes

With Kadu, you dictate your examination in segments, for as long as you need. You can dictate on a computer or on a phone, by scanning a QR code. If the network drops, the audio waits on the device for up to 48 hours. Live mode transcribes the session with the patient's consent and picks out pain scores, ranges of motion and points to check. The plan includes 5 hours of Live mode a month.

With Delta, you choose for each session. Either Delta transcribes what is said during the session, or you dictate your observations afterwards. The Mac and Windows app is recommended for sessions.

Both tools therefore cover dictation and live sessions. At Kadu, the plan includes 5 hours of live use a month, with extra hours available for a fee, and Kadu keeps dictation on the device if the network drops.

Assessments and documents

Kadu is very focused on the BDK. It drafts an initial or follow-up assessment in the physiotherapy template. It asks questions when information is missing and flags uncertain points. A guided review has you approve each section. Kadu also writes SOAP or free-text reports, and a letter to the doctor sent through a secure link. It can import your previous reports in PDF or Word, and remembers your recurring corrections.

Delta generates a report for every session, with a short summary, a detailed summary and topics for the next session. It also drafts assessments, letters and certificates. If you want a starting structure for the assessment, our BDK template sets out the expected sections.

Kadu goes further on the BDK template and its review. Delta puts the emphasis on the note for each session.

Patient follow-up

Kadu turns each measurement from the assessment into a chart, session after session, such as pain scores or ranges of motion. It also tracks prescribed, completed and remaining sessions on the prescription, and helps spot patients eligible for a prevention assessment.

Delta updates the patient record after each session, with a summary of the follow-up and the goals being tracked. You find the whole follow-up and its progress in one place.

If you mainly track numbers, Kadu is a better fit. If you want to read in a few lines where the patient stands, Delta meets that need.

Diary and billing

Kadu includes a diary, an online booking page, home visit rounds with the route, and a locum mode. It also imports your patient lists from several practice tools, such as Doctolib, Vega or Kiné+4000.

Delta does not manage a diary.

Neither does coding, billing or electronic claims. Kadu says so clearly on its website, and the same applies to Delta. You therefore keep your practice software for billing.

Data

Kadu hosts the patient record in France with Scalingo, which is HDS-certified. The AI runs on Microsoft Azure in the European Union. Transcription takes place in France and document drafting in Sweden. Audio is not kept. According to Kadu, requests are not used to train Microsoft's models. Its website does not describe pseudonymisation before data is sent to the AI.

Delta hosts data in France with an HDS-certified host, and AI processing also takes place in France. The patient's name and identifying details are pseudonymised before the AI. No audio file is kept, as the audio is only used during the session to produce the transcription. Data is never used to train a model and is encrypted in transit and at rest.

Both tools use HDS-certified hosting in France. The difference lies in where the AI processes data, and in pseudonymisation before the AI, which Delta describes and Kadu's website does not.

Price

Kadu costs €29.90 a month with no commitment, or less on an annual plan, with two months free. Its website does not say whether these prices include VAT. Each month includes 40 AI assessments, 200 AI credits and 5 hours of Live mode. Beyond that, credit and hour packs are available. For a practice, a discount applies from two practitioners. The trial lasts 14 days, with no card required.

Delta costs €29 a month incl. VAT on an annual plan, that is €348 a year, or €35 a month incl. VAT on a monthly plan. The trial lasts 14 days, with no card required. A free plan limited to 10 sessions a month is also available.

If its prices include VAT, Kadu is slightly cheaper, both monthly and annually. In return, it applies a monthly quota of assessments and live hours.

Which tool should you choose?

Choose Kadu if the BDK is your main workload, if you want to track your measurements in charts, and if you want one tool for your diary, online booking and home visits.

Choose Delta if you want a note for every session and a record that summarises the patient's progress. Delta also suits you if you want AI processing to stay in France and the patient's name hidden before the AI, or if your practice brings together physiotherapists and psychologists, a profession Kadu says it is preparing.

Both offer a 14-day trial with no card required. The simplest approach is to test each one on the same patients, then compare the texts they produce.

Frequently asked questions

Further reading

To see the other tools on the market, read our comparison of AI report software for physiotherapists. For your documents, see our session notes template and our end-of-treatment report template. To discover Delta, visit the Delta page for physiotherapists.

Sources

• Kadu, home page and features, checked on 15 October 2026.
• Kadu, pricing, checked on 15 October 2026.
• Kadu, HAS, HDS and GDPR compliance, checked on 15 October 2026.
• Kadu, about and AI physiotherapy assessment software, checked on 15 October 2026.
• Delta, pricing, checked on 15 October 2026.

Prices and features may have changed since. To report an error, write to contact@mydelta.app.