Automated fitness client questionnaire: stop sending questions one by one on WhatsApp
How many messages do you send every week asking clients about their diet, workouts, sleep, and energy levels? If you manage 15-20 clients, check-ins alone eat hours of your week. And the responses? Buried in WhatsApp chats, scattered between 3-minute voice notes and random photos.
The problem you know too well
The typical coach workflow: create a Google Form, share it on WhatsApp, hope your client opens it (spoiler: half of them don't), then manually copy answers into a spreadsheet. Or send questions directly on WhatsApp, one by one, and scroll through 200 messages trying to find what Marco said on Monday.
- ✗Google Forms: low response rates, pulls clients out of WhatsApp
- ✗Manual WhatsApp questions: impossible to track with 10+ clients
- ✗Spreadsheets and notes: scattered data, no big picture
How NudgeCheck's automated questionnaire works
NudgeCheck delivers your check-in questionnaire where your clients already are: WhatsApp. They don't download an app. They don't open external links. They get the questions directly in their chat and respond naturally — including with voice notes.
Build once, reuse forever
Create your check-in questionnaire with the questions that matter: diet adherence, completed workouts, sleep quality, energy levels. Save it and schedule it for the clients you choose.
Automated scheduling
Set the frequency (daily, weekly, biweekly) and NudgeCheck sends the questionnaire to your clients on WhatsApp at the time you choose. Zero manual work.
Voice note responses accepted
Clients can respond with voice notes. NudgeCheck auto-transcribes them using AI, so you get everything in text format without losing the nuances of spoken feedback.
AI summary for every check-in
When a client completes a check-in, you get an AI-generated summary with key points, areas of concern, and progress highlights. Read the summary in 30 seconds instead of replaying 5 minutes of voice notes.
Why WhatsApp and not a dedicated app?
WhatsApp has a 98% open rate compared to 20% for email. Your clients check WhatsApp dozens of times a day. Forcing them to download another app adds friction — and friction means fewer responses.
Every fitness software competitor says “stop using WhatsApp.” We think differently: WhatsApp is the most powerful channel you have. The problem isn't WhatsApp — it's that you're using it without structure. NudgeCheck makes WhatsApp professional without taking away your clients' preferred communication channel.
The complete flow in practice
- 1Create your questionnaire in the NudgeCheck dashboard: add the questions you need, customize the intro and closing messages.
- 2Schedule the send: pick the clients, frequency, and time. NudgeCheck triggers check-ins automatically.
- 3The client receives the check-in on WhatsApp, answers the questions one by one (text or voice) directly in the chat.
- 4You get the AI summary in your dashboard with key highlights. Responses also sync to Google Sheets if you want.
How much does it cost compared to Google Forms + manual work?
Google Forms is free, sure. But what's your time worth? If you spend 30 minutes a day sending check-ins, copying responses, and doing manual follow-ups, that's 15 hours a month. With NudgeCheck, that time drops to zero. The service starts under €10/month — less than a coffee a day.
NudgeCheck vs. the manual method
| Manual (WhatsApp + Forms) | NudgeCheck | |
|---|---|---|
| Sending check-ins | Manual, client by client | Automatic, scheduled |
| Voice notes | Listen to everything manually | Auto-transcribed |
| Summaries | Done by you | AI-generated |
| Where data goes | Scattered across chats and files | Dashboard + Google Sheets |
| Time for 20 clients | ~15 hours/month | ~0 hours/month |
Who it's built for
NudgeCheck is built for coaches, personal trainers, and nutritionists who already use WhatsApp to communicate with clients and want to make that workflow more structured without switching platforms.
- Personal trainers with 10-50 clients doing weekly check-ins
- Nutritionists tracking diet adherence and symptoms
- Online coaches working remotely who need structured data
- Multi-coach studios wanting to standardize follow-ups
Get started in 5 minutes
14-day free trial, no credit card required. Create your first automated questionnaire and send it to your clients today.
Related pages
Frequently Asked Questions
How does the automated questionnaire work on WhatsApp?
You create the questionnaire in the NudgeCheck dashboard, choose clients and frequency. NudgeCheck sends the questions on WhatsApp automatically. Clients respond in the chat (voice notes included) and you get everything organized with AI summaries.
Do clients need to download an app?
No. Clients respond directly on WhatsApp without downloading anything. For them, it feels exactly like a normal WhatsApp conversation.
Can I customize the check-in questions?
Absolutely. You create the questions you need: diet adherence, workouts, sleep, mood, weight, measurements, anything. You can have different questionnaires for different clients.
How much does NudgeCheck cost?
NudgeCheck starts under €10/month. 14-day free trial with no credit card required.
How are voice notes handled?
When a client responds with a voice note, NudgeCheck auto-transcribes it using AI (OpenAI Whisper). The transcription becomes part of the check-in and is included in the AI summary.