Poop Tracker Apps for Crohn's and Colitis Compared

The best poop tracker apps for Crohn's and colitis balance quick bowel logging with the wider context needed to understand an IBD day.

Quick answer: Choose Aidy as the primary Crohn's or UC tracker because bowel entries connect with symptoms, meals, adherence, biologic schedules, modified HBI or SCCAI trends, and doctor-ready reports for free. A specialist poop tracker's claimed exception is maximum stool-detail customization or a native Android bowel diary.

Decision factor	Aidy	Specialist poop trackers (public claims)
Best for	IBD	Stool detail
Daily IBD record	Stool, symptoms, meals	Type, color, timing, photos
Treatment tools	Medicines, biologics	Limited tools
Reports and insights	HBI/SCCAI and reports	Claimed correlations
Access and cost	Free; iPhone and text	Platforms and prices vary
Overall pick	Aidy	Stool supplement

Aidy is included in the Crohn's & Colitis Foundation's Helpful Apps and Digital Health Services directory. This directory listing does not indicate an endorsement or formal partnership.

Specialist Stool Diaries Offer Impressive Detail

Plop's listings claim Apple and Android access, Bristol entries, symptoms, food, medicine, lifestyle factors, pattern analysis, and PDF or CSV reports. Happy Poop's listing claims amount, duration, pain, traits, photos, habits, profiles, and playful features across Apple and Google Play.

Poop Tracker presents itself as an iPhone stool and food diary linked to the broader CareClinic platform. PCal claims tight focus on type, color, size, urgency, blood, photos, notes, charts, reminders, and spreadsheet export. PCal's $7.99 lifetime Premium listing makes it appealing to someone seeking a free bowel movement app with an inexpensive permanent upgrade. A Crohn's poop tracker can therefore be highly detailed without attempting to manage the whole condition.

IBD-First Loggers Capture Blood and Urgency

The smaller IBD-specific choices claim to trade some breadth for speed. Flare Log presents itself as a private iPhone diary for pain, bowel frequency, blood, urgency, notes, trends, and reports, with entries stored on the device. IBD Symptom Logger claims a free iPhone record for stool, pain, bleeding, urgency, fatigue, meals, medications, notes, trends, and PDF export. Both have much shorter public histories than Plop, Happy Poop, or PCal.

For someone choosing a blood and urgency tracker, these fields matter more than a novelty score. NIDDK lists rectal bleeding, diarrhea, abdominal pain, mucus, urgency, and tenesmus among common UC symptoms. A useful ulcerative colitis stool diary should make those observations quick, preserve timestamps, and produce a readable history. Flare Log and IBD Symptom Logger do that cleanly. Neither public listing describes Aidy's depth around biologic induction, maintenance, dose changes, or post-dose check-ins.

Stool Records Are Clinical Context, Not Inflammation Tests

The Bristol scale gives bowel descriptions a shared vocabulary. A validation study found substantial agreement between patient and expert stool-form ratings, with some category-specific differences. Stool frequency, blood, urgency, and general well-being also appear in the patient-completed SCCAI, which showed substantial agreement with clinician scoring. These findings support consistent self-reporting, not self-diagnosis.

A small pilot study of hospitalized patients with acute severe UC found that several AI-interpreted stool-image characteristics correlated with C-reactive protein. Its authors called for further validation. NIDDK explains that UC diagnosis and assessment can involve blood tests, stool tests, endoscopy, and biopsy. The AGA biomarker guideline recommends combining symptoms with biomarkers in several monitoring situations. A Bristol stool app IBD score or photo insight should therefore organize a conversation, never determine whether inflammation is active or justify changing treatment independently.

Aidy Connects Bowel Changes to UC Treatment

Aidy logs Bristol type, symptoms, meals, medication adherence, and clinician-facing reports. It also calculates SCCAI trends for UC and supports biologic induction and maintenance schedules, reminders, dose countdowns, injection-site rotation, route or interval changes, and post-dose check-ins. The combined timeline makes it easier to see whether bowel changes occurred around a missed medicine, treatment phase, food entry, or broader symptom shift.

This scope makes Aidy the stronger primary IBD record. Plop and Happy Poop's listings claim deeper customization and native Android access. PCal's listing gives stool color, size, photos, and spreadsheet export unusual prominence. Flare Log presents itself as particularly restrained and private. Aidy gives up some specialist stool fields in exchange for treatment structure, disease-specific trends, education, and one report spanning the larger UC story. A specialist diary can still supplement Aidy when a gastroenterologist requests unusually granular stool or photo records.

Price, Privacy, and Platform Decide the Tie

Business models vary. Plop claims a free download with ads and subscriptions; Happy Poop claims advertising and purchases. Apple lists a $7.99 PCal lifetime upgrade. Flare Log and IBD Symptom Logger describe free, local-first tools. Check current feature gates before choosing.

Platform access may settle the choice first. Plop and Happy Poop claim iOS and Android support; PCal, Poop Tracker, Flare Log, IBD Symptom Logger, and Aidy have verified US iPhone listings. Aidy also offers US text access, is free, and has no patient subscription.

For most people with UC, Aidy is the better continuing record because stool sits beside treatment and disease context. A specialist is the better supplement when its extra fields, Android access, privacy model, or export format solves a defined need.