Methodology · Diary Studies

Days, weeks, months of in-the-moment capture. The everyday, as they live it.

A diary study in Indeemo is a low-friction, multi-modal feed of real life: selfie videos, environmental scans, photos, text responses and ratings scales, submitted as moments happen on the participant's own phone.

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Why Diary Studies In Indeemo

Three things a longitudinal diary in Indeemo gives you that a one-shot study can't

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Trust that compounds
over time

Participants share things later in a study they'd never have said in a one-shot interview. Longitudinality is what makes the data deep: the moments of frustration, the moments of unexpected delight, the friction they only notice once you ask them to look.
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Behaviour over time, as the pattern emerges

A pattern only shows up if you watch for it. Early in the study looks like adoption. Mid-study looks like habit. Later in the study looks like the workaround they invented when the product didn't deliver. Indeemo lets you see all three.

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Close the say-do gap,
over time

A selfie video at the moment of use. A photo of breakfast. A quick rating. Diary entries in Indeemo feel like a story participants want to tell. Tasks change across the study window, so entries stay fresh as the study runs on. The result: a longitudinal picture of what people actually do, alongside what they say about it.

How It Works In Indeemo

A diary study, end to end

Four stages, one platform: from plan to deliver.
Group of colleagues discussing in a meeting.
01
Plan
Targeted screening for behaviours and contexts you want to track over time. Cohort by usage frequency, life stage, or market. Then schedule tasks that fit the rhythm of life: daily, weekly, or trigger-based. Mix selfie videos, environmental scans, photos, text responses and ratings. Sequence what participants share across the day: morning capture, evening reflection, end-of-week summary, with reminders that arrive at the right time.
Two female friends taking a selfie while on a hike.
02
Capture
Participants share through an Instagram-style feed they actually return to. Researchers stay in the loop, nudging participants, releasing follow-up tasks, keeping the conversation alive across weeks.
Girl infront of laptop working.
03
Analyse
AI transcription and translation across 30+ languages. Theme detection that links insights to the day, the clip, the participant. Search across every diary entry. Watch how attitudes shift across the study window, day by day.
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04
Deliver
Highlight reels that show the arc from week 1 to week 4. Tagged moments stakeholders can watch in 90 seconds. Observer access for cross-functional teams. The depth of a panel, the immediacy of video.
Where Indeemo Fits

How Indeemo fits diary study work

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Dimension
Common approach
What Indeemo adds
Cadence
Entries are often captured as end-of-day surveys or weekly check-ins.
In-the-moment capture: a selfie video at the moment of use, a photo of the receipt, a quick rating in the lift.
Task variety
Each entry typically follows the same form and shape day to day.
Tasks vary across the study window, so entries stay fresh as the study runs on.
Cognitive load
Participants recall and reconstruct events at the end of the day.
Participants share as moments happen, when memory is fresh.
Output
A retrospective summary of what participants reported.
A longitudinal dataset that's both rich and complete: the depth of video, the breadth of structured data.
Inside The Study

What a researcher actually configures

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Sample task brief

A daily ongoing task, captured as selfie video. "Each day during the study, share a 30-second selfie video at the moment you make your daily coffee. Tell us what's in your hand, what's in your head, what's on the schedule."

Sample reflection task

An evening reflection: a 1 to 5 rating and a short text response, captured nightly. "Tonight, before you go to sleep, give the day a 1 to 5 rating and a one-line text response: what made the day, what broke it, what would you change."

Sample analysis output

Longitudinal pattern detection across a cross-day theme map. "Mood scores stable Mon to Wed (3.8 avg). Drop on Thu (2.4) consistent with mid-week burnout theme. Coffee ritual described as 'reset' in 11 of 14 diaries."

“Indeemo's diary studies gave participants the inadvertent benefit of helping them reflect on their own behaviours and feelings. The Sony team were learning about their lives, and the contributors were learning about themselves. It was research on steroids.”

james bartlett headshot.
James Bartlett
Sony Music
People recording concert on their smartphones, view from the crowd.

Built for teams who need to see behaviour over time

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Insights & Research

Track attitudinal and behavioural shifts across days, weeks, or months. Move beyond the snapshot and into the arc.

For insights teams

UX & Design

See what users actually do across real use, in their own context. Spot the friction that only emerges later in the study.

For UX teams

Product & Innovation

Watch the prototype move from novelty to habit, or fall out of the routine. Adoption is an arc that unfolds across the study.

For product teams
Related Methodologies

Adjacent methods researchers run alongside diary studies

Woman taking photo of her kitchen shelves, using her smartphone.
Methodology · Mobile Ethnography
In-context capture in their kitchens, on their commutes, at the moment of choice.
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Woman unpacking a product in her kitchen while also using her phone.
Methodology · In-Home Product Testing
See your product where it actually lives, over a week of use, in the home it'll really live in.
Explore methodology
Methodology · Patient Journey Research
The 6am injection. The caregiver workaround. The moment they almost gave up, tracked across weeks.
Explore methodology

Diary studies, answered

How long should a diary study run?
It depends on the behaviour you're tracking. Daily routines need a window long enough to stabilise. Adoption arcs need longer. Patient journeys can run for months. Indeemo supports any length: we've run single-day studies, weekly diaries, and multi-month longitudinal studies tracking medication adherence and consumer habits.
How many participants do I need?
For a single cohort with qualitative depth, 10 to 20 participants is typical. For multi-cohort studies (e.g. heavy vs. light users, market 1 vs. market 2), 20 to 40. The platform handles scale without losing the diary quality.
How often should participants submit entries?
A daily cadence suits many studies, often with multiple short entries per day (morning capture, evening reflection). For longer studies, twice-weekly or trigger-based entries work well. The key is keeping each entry short and the format varied across the study.
How do you keep participants engaged for weeks?
Researchers can stay in touch with participants throughout the study, keeping open communication and releasing follow-up tasks as the study evolves. That ongoing two-way contact is what keeps engagement high across multi-week studies.
Can I run diary studies across multiple markets and languages?
Yes. Capture in 30+ languages with AI transcription and translation. Run all markets in parallel, with cross-cohort comparison built in.
What's the difference between a diary study and mobile ethnography?
They're closely related. Diary studies emphasise the temporal: the daily pattern, the cumulative arc. Mobile ethnography emphasises the spatial and environmental: the home, the commute, the shelf. Indeemo studies can blend both.
Is diary data secure and consent-compliant?
Yes. Indeemo is ISO 27001 and SOC 2 certified, GDPR-aligned, with EU and US data residency options.
What kind of analysis output do I get?
Researchers in Indeemo tag daily entries, track themes longitudinally, compare across cohorts, work with AI-detected patterns over time, and build stakeholder-ready highlight reels showing the arc across the study window.

See a diary study in action.

Book a personalised demo and we'll walk you through a real Indeemo diary study, from task design to longitudinal analysis.

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