PeriCoach vs Constipation Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PeriCoach
This medical device system app is designed to help women strengthen their pelvic floor muscles. It requires a separate sensor device to function and is FDA cleared and CE marked.
- Pelvic floor muscle strengthening
- Requires sensor device
- FDA cleared
- CE marked
- Medical device system
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The PeriCoach App forms part of a medical device system designed to strengthen women's pelvic floor muscles. The app can not be used independently and requires the sensor device. More information can be found at pericoach.com. This is a Class 1 medical device with FDA clearance and CE mark.
Constipation Diary
This app helps individuals track daily bowel movements and related symptoms to better understand and manage constipation. It's designed for prospective assessment in clinical trials and for personal health management.
- Daily symptom tracking
- Bowel movement frequency
- Stooling habit recording
- Constipation assessment
- Clinical trial data collection
- Patient-reported outcomes
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©NEUROGUT 2018 CONSTIPATION STOOL INSTRUMENT Basic description: The Constipation Stool Instrument (CSI) is a list of patient-reported symptoms for the evaluation of bowel problems associated with constipation. Constipation affects 15% of the US population. Constipation comprises of multiple symptoms that describe the frequency and difficulty with bowel movements. Because of the irregular nature of bowel habit, the multiple and variable symptoms, and difficulty with remembering symptoms as well as recall bias, it is important to prospectively assess patient-reported bowel symptoms, for use in clinical trials, and for the assessment of patients with constipation. Authors: Neurogut Incorporated (USA) Objective: To assess the presence of and severity of patient-reported bowel and abdominal symptoms related to constipation, for use in clinical trials, and assessment of patients with constipation Therapeutic Areas: Gastrointestinal and Digestive System Diseases Pathological conditions, Signs and Symptoms Therapeutic indication: Constipation Dyssynergic defecation Anorectal and Colorectal diseases Type of Clinical Outcome Assessment (COA) Patient Reported Outcome (PRO) assessment Original language English for the USA Bibliographic reference for the original questionnaire: Meduri K, Brown CK, Attaluri A, Valestin J, Rao SSC. Validation of a Prospective Stool Diary for Assessment of Constipation. Neurogastroenterol Motil 2011; 23 (Supplement 1): 21. Administration: The Constipation Stool Instrument (CSI) is a daily, self-administered questionnaire for the assessment of bowel habit. The subject is instructed to fill out all 11 items for one day by responding on each screen presented, and as it relates to each bowel movement. It takes 1 minute to complete this App for each bowel movement. Purpose of survey: To accurately and more completely record each subject’s bowel and stooling habit To better understand the subject’s constipation problem To use the information to improve the health of a patient with constipation Benefits to the Respondent: To improve diagnosis of constipation and to identify the subject’s subtype of constipation To help develop appropriate treatment plan To help develop new treatments
Screenshots
Verdict
The clearest difference is review sentiment: PeriCoach at 75% against Constipation Diary's 17%. PeriCoach also leads on rating (5.0 vs 2.3). Constipation Diary's advantage is ratings volume (7 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PeriCoach holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: Constipation Diary has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of PeriCoach's written reviews are positive against 17% of Constipation Diary's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 5, 2026 and September 10, 2026 respectively.
| Parameter | PeriCoach | Constipation Diary |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.3 (7 ratings) |
| Positive reviews | 75.0% of reviews — better | 16.7% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 38 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Analytica Ltd | Amalesh Sanku |
Customer experience
PeriCoach
Constipation Diary
In-app purchases
PeriCoach
No in-app purchases
Constipation Diary
No in-app purchases




