# Acute Liver Failure Prognostic vs Constipation Diary

The clearest difference is rating: Acute Liver Failure Prognostic at 5.0 against Constipation Diary's 2.3. Constipation Diary's advantage is update cadence (every 2 months vs every 18 months) and iOS requirement (13.0 vs 26.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Acute Liver Failure Prognostic holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 7 respectively.

Acute Liver Failure Prognostic ships an update every 18 months, Constipation Diary every 2 months. The most recent releases landed on June 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Acute Liver Failure Prognostic | Constipation Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/acute-liver-failure-prognostic/id1144793436/reviews)** | [2.3 (7 ratings)](https://appshunter.io/ios/app/constipation-diary/id1438081421/reviews) |
| Number of ratings | 3 | **7** |
| Positive reviews | — | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 1 MB | 11 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Tung Tree LLC](https://appshunter.io/developer/893806160) | [Amalesh Sanku](https://appshunter.io/developer/1387171071) |

## What reviewers say

### Acute Liver Failure Prognostic

[App page](https://appshunter.io/ios/app/acute-liver-failure-prognostic/id1144793436)

This medical tool calculates the likelihood of transplant-free survival for patients with acute liver failure. It uses five data points to provide a percentage prediction, aiding in transplant listing decisions.

**Highlights:** Predicts 21-day transplant-free survival, Calculates likelihood of survival, Uses 5 key data points, Aids transplant listing decisions, Conservative survival prediction

**Features:** macOS Compatibility

**In-app purchases:** none


### Constipation Diary

[App page](https://appshunter.io/ios/app/constipation-diary/id1438081421)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Acute Liver Failure Prognostic free?

Acute Liver Failure Prognostic is free to download, with no in-app purchases.

### Is Constipation Diary free?

Constipation Diary is free to download, with no in-app purchases.

### Which has better reviews, Acute Liver Failure Prognostic or Constipation Diary?

Acute Liver Failure Prognostic is rated higher. Acute Liver Failure Prognostic averages 5.0 out of 5 from 3 ratings, while Constipation Diary averages 2.3 from 7 ratings.

### Do Acute Liver Failure Prognostic or Constipation Diary have ads?

Neither Acute Liver Failure Prognostic nor Constipation Diary shows ads.

### Which is updated more often, Acute Liver Failure Prognostic or Constipation Diary?

Acute Liver Failure Prognostic ships an update every 18 months, and Constipation Diary every 2 months. Most recently, Acute Liver Failure Prognostic was updated on June 24, 2026 and Constipation Diary on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*