# REN vs Bladderly

The clearest difference is in-app purchases: REN at none against Bladderly's 8. Bladderly's advantage is ratings volume (203 vs 4) and rating (4.5 vs 4.3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Bladderly sells 8 in-app purchases, starting at $4.99 per month. REN asks for nothing beyond the download.

Bladderly holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Bladderly has 203 ratings behind it against 4, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 5 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | REN | Bladderly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/ren-test/id1472075429/reviews) | **[4.5 (203 ratings)](https://appshunter.io/ios/app/bladderly-smart-bladder-diary/id1523268654/reviews)** |
| Number of ratings | 4 | **203** |
| Positive reviews | — | 78.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | **Free** | Subscription |
| Size | 58 MB | 124 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Bold Type LLC](https://appshunter.io/developer/1434471826) | [Soundable Health, Inc.](https://appshunter.io/developer/1455952390) |

## What reviewers say

### REN

[App page](https://appshunter.io/ios/app/ren-test/id1472075429)

This application connects to a medical device for participants in a clinical trial. It offers visual feedback during prescribed exercise routines. Access is restricted to individuals enrolled in the REN-## clinical trial.

**Highlights:** Connects to medical device, Visual exercise feedback, Prescribed exercise routines, Clinical trial participant use

**Features:** macOS Compatibility

**In-app purchases:** none


### Bladderly

[App page](https://appshunter.io/ios/app/bladderly-smart-bladder-diary/id1523268654)

This app simplifies bladder diary tracking, replacing paper logs with an easy-to-use digital experience. It helps users consistently record bathroom visits and timing to identify patterns, aiding in discussions with healthcare providers.

**Highlights:** Digital bladder diary replacement, Easy and consistent logging, Log bathroom visits and timing, Optional sound-assisted volume estimation, Clear, organized records, Privacy-focused design

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Monthly | $4.99 | per month |
| Monthly | $9.99 | per month |
| Annual | $24.99 | per year |
| Annual | $24.99 | per year |
| Annual | $69.99 | per year |
| PDF Export Once | $1.99 | one-time |
| 3-Day Pass | $4.99 | one-time |


## Frequently asked questions

### Is REN free?

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

### Is Bladderly free?

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

### Which has better reviews, REN or Bladderly?

Bladderly is rated higher. REN averages 4.3 out of 5 from 4 ratings, while Bladderly averages 4.5 from 203 ratings.

### Do REN or Bladderly have ads?

Neither REN nor Bladderly shows ads.

### Which is updated more often, REN or Bladderly?

REN ships an update every 5 weeks, and Bladderly every 5 weeks. Most recently, REN was updated on October 24, 2026 and Bladderly on October 24, 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.*