Comparison

Monash FODMAP Diet vs Constipation Diary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Monash FODMAP Diet

Manage gastrointestinal symptoms associated with IBS using a scientifically developed low FODMAP diet. This app provides a comprehensive food guide with a traffic light system, certified low FODMAP products, and over 70 recipes. Track your diet, symptoms, and progress through the 3-Step FODMAP diet.

Highlights
  • Low FODMAP food guide with traffic light system
  • Certified low FODMAP branded products
  • Over 70 low FODMAP recipes
  • Food and symptom diary
  • Tutorials for the 3-Step FODMAP diet
  • Customizable shopping lists
Features
Read full description

Researchers at Monash University have developed the low FODMAP diet and a corresponding app to assist in the management of gastrointestinal symptoms associated with irritable bowel syndrome (IBS). The Monash University FODMAP diet works by swapping foods high in fermentable carbohydrates (FODMAPs), with low FODMAP alternatives. Around 75% of people with IBS experience symptom relief on a low FODMAP diet. The app comes directly from the research team at Monash and includes the following: - General information about the FODMAP diet and IBS. - Easy to understand tutorials to guide you through the app and the 3-Step FODMAP diet. - A Food Guide detailing the FODMAP content for hundreds of foods using a simple 'traffic light system'. - A list of branded products that have been certified by Monash as low FODMAP. - A collection of over 70 nutritious, low FODMAP recipes. - Functions that allow you to create your own shopping list and add notes to individual foods - A Diary that enables you to record food eaten, IBS symptoms, bowel habits and stress levels. The Diary will also guide you through step 2 of the diet - FODMAP reintroduction. - The ability to adjust units of measurement (metric or imperial) and activate colour blindness assistance.

About

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.

Highlights
  • Daily symptom tracking
  • Bowel movement frequency
  • Stooling habit recording
  • Constipation assessment
  • Clinical trial data collection
  • Patient-reported outcomes
Features
Read full description

©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

Monash FODMAP Diet4 screens
Constipation Diary4 screens

Verdict

The call

The clearest difference is price: Constipation Diary at Free against Monash FODMAP Diet's $7.99. Constipation Diary also leads on iOS requirement (13.0 vs 17). Monash FODMAP Diet's advantage is rating (4.2 vs 2.3) and review sentiment (50% vs 17%). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Constipation Diary is free to download; Monash FODMAP Diet costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Monash FODMAP Diet holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: Monash FODMAP Diet has 2.6K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 50% of Monash FODMAP Diet's written reviews are positive against 17% of Constipation Diary's.

UpkeepUpdate frequency

Monash FODMAP Diet ships an update every 10 days, Constipation Diary every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard8 real differences · 3 level
Monash FODMAP Diet versus Constipation Diary: the parameters behind the verdict, then further details
ParameterMonash FODMAP DietConstipation Diary
Price$7.99Free — better
Rating4.2 (2.6K ratings) — better2.3 (7 ratings)
Positive reviews49.9% of reviews — better16.7% of reviews
Number of ratings2.6K — better7
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#1 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS1713.0 — better
Further details — not scored
Size30 MB11 MB
Age rating12+17+
DeveloperMonash UniversityAmalesh Sanku

Customer experience

Monash FODMAP Diet

All ratings2,586 ratings
Positive78.2%
Neutral5.6%
Negative16.2%
Written reviews682 reviews
Positive49.9%
Neutral13.9%
Negative36.2%

Constipation Diary

All ratings7 ratings
Positive28.6%
Neutral0.0%
Negative71.4%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Bugs and requests

Monash FODMAP Diet

Reported bugs

3 issues
  • Crashes when trying to access food diary
  • Search function not working consistently
  • Incorrect or contradictory food ratings

Requested features

5 requests
  • Ability to add custom foods and recipes
  • Sync diary and data across devices
  • More advanced filtering and sorting options
  • Barcode scanning for packaged foods
  • Integration with other diet/health tracking apps

Constipation Diary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Monash FODMAP Diet

No in-app purchases

None

Constipation Diary

No in-app purchases

Questions

Is Monash FODMAP Diet free?
Monash FODMAP Diet costs $7.99, with no in-app purchases.
Is Constipation Diary free?
Constipation Diary is free to download, with no in-app purchases.
Which has better reviews, Monash FODMAP Diet or Constipation Diary?
Monash FODMAP Diet is rated higher. Monash FODMAP Diet averages 4.2 out of 5 from 2.6K ratings, while Constipation Diary averages 2.3 from 7 ratings.
Do Monash FODMAP Diet or Constipation Diary have ads?
Neither Monash FODMAP Diet nor Constipation Diary shows ads.
Which is updated more often, Monash FODMAP Diet or Constipation Diary?
Monash FODMAP Diet ships an update every 10 days, and Constipation Diary every 2 months. Most recently, Monash FODMAP Diet was updated on November 6, 2026 and Constipation Diary on November 2, 2026.

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