# iUFlow vs proudP

The clearest difference is in-app purchases: iUFlow at none against proudP's 13. iUFlow also leads on ads (none vs shown) and review sentiment (96% vs 79%). proudP's advantage is update cadence (every 11 days vs every 5 weeks) and chart position (#132 vs unranked). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. proudP sells 13 in-app purchases, starting at $19.99 per month. iUFlow asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for iUFlow against 4.7 for proudP. Both are backed by a comparable volume of ratings — 1.2K and 837 respectively. Written reviews are what separate them: 96% of iUFlow's written reviews are positive against 79% of proudP's.

iUFlow ships an update every 5 weeks, proudP every 11 days. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | iUFlow | proudP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/iuflow-voiding-bladder-diary/id935581221/reviews)** | [4.7 (837 ratings)](https://appshunter.io/ios/app/proudp-urine-flow-test/id1509008610/reviews) |
| Number of ratings | **1.2K** | 837 |
| Positive reviews | **96.4% of reviews** | 78.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#132** |
| Size | 32 MB | 94 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kesem Solutions Pty Ltd](https://appshunter.io/developer/1751494198) | [Soundable Health, Inc.](https://appshunter.io/developer/1455952390) |

## What reviewers say

### iUFlow

[App page](https://appshunter.io/ios/app/iuflow-voiding-bladder-diary/id935581221)

This app serves as a comprehensive bladder and bowel diary, allowing users to easily track toilet trips, fluid intake, and bowel movements. It offers automated recording and can function as a water reminder. Data can be shared with healthcare professionals for better treatment insights.

**Highlights:** Automated voiding/bladder diary, Track urine intake and output, Record bowel movements with Bristol chart, Water/urine reminder, Share diary with doctor, Optional uroflowmetry device integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💻 Easy to use
- 🔍 Helpful for tracking
- 📊 Useful reports
- 🤳 Convenient to use on phone
- 🆓 Free app

**What reviewers complain about**

- 🐛 Crashes or freezes
- 📈 Needs more data visualization
- ⚙️ Clunky interface
- 🕰️ Inconvenient time entry
- 🔒 Privacy concerns with personal info required

**Reported bugs**

- Diary data not syncing properly
- Inconsistent data display in reports
- Crashes when updating the app

**Requested features**

- Add Apple Watch support
- Allow editing of past entries
- Add bowel movement tracking
- Provide more measurement options (e.g. duration, guesstimate)
- Integrate with other health apps


### proudP

[App page](https://appshunter.io/ios/app/proudp-urine-flow-test/id1509008610)

**Currently charting:** #132 Top Grossing · Medical (US App Store)

This app allows men to discreetly measure their urine flow at home using their smartphone. It provides objective data and insights to help users understand their urinary health and prepare for conversations with their doctor.

**Highlights:** At-home urine flow testing, Acoustic AI measurement, Objective data insights, Symptom trend tracking, Printable reports for doctors, Privacy-focused

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Unlimited access | $19.99 | per month |
| Premium - Unlimited access | $19.99 | per month |
| Premium - Unlimited access | $19.99 | per month |
| Premium - Unlimited access | $99.99 | per year |
| Premium - Unlimited access | $119.99 | per year |
| Just 3 days - A perfect start | $2.99 | one-time |
| Check now (One-time purchase) | $9.99 | one-time |
| Quick Starter | $12.99 | one-time |
| Just 1 month - A perfect start | $19.99 | one-time |
| Basic Check-up | $23.99 | one-time |
| One-Time Test | $29.99 | one-time |
| Baseline Check | $49.99 | one-time |
| One-Time Test | $49.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Intuitive and accurate
- 📊 Helpful for tracking health data
- 💡 Innovative technology
- 🏥 Recommended by doctors

**What reviewers complain about**

- 🔒 Paywall to access full features
- 🔢 Inaccurate measurements
- 🚫 Not compatible with all devices
- 🚫 Only for men

**Reported bugs**

- App crashes on certain devices
- Recording issues with long pauses
- Inconsistent volume/flow measurements

**Requested features**

- Export data to PDF/Excel
- Comparison to healthy baselines
- Automatic interval tracking
- Apple Watch app
- More medication-related information


## Frequently asked questions

### Is iUFlow free?

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

### Is proudP free?

proudP is free to download, with in-app purchases available.

### Which has better reviews, iUFlow or proudP?

iUFlow is rated higher. iUFlow averages 4.7 out of 5 from 1.2K ratings, while proudP averages 4.7 from 837 ratings.

### Do iUFlow or proudP have ads?

proudP shows ads; iUFlow does not.

### Which is updated more often, iUFlow or proudP?

iUFlow ships an update every 5 weeks, and proudP every 11 days. Most recently, iUFlow was updated on October 22, 2026 and proudP on October 27, 2026.

---

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