# Your Peak Flow vs Plumb's | Standards

The clearest difference is price: Plumb's | Standards at Free against Your Peak Flow's $2.99. Plumb's | Standards also leads on rating (4.9 vs 2.0) and review sentiment (56% vs 29%). On update cadence, ads, in-app purchases and device support there is nothing between them.

Plumb's | Standards is free to download; Your Peak Flow costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Plumb's | Standards holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Plumb's | Standards has 3.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 29% of Your Peak Flow's written reviews are positive against 56% of Plumb's | Standards's.

Your Peak Flow ships an update every 6 weeks, Plumb's | Standards every 3 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | Your Peak Flow | Plumb's | Standards |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/your-peak-flow/id1544967818/reviews) | **[4.9 (3.4K ratings)](https://appshunter.io/ios/app/plumbs-standards/id1556729700/reviews)** |
| Number of ratings | 1 | **3.4K** |
| Positive reviews | 28.6% of reviews | **55.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Paid** | Subscription |
| Size | 41 MB | 62 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Suited Technologies GmbH](https://appshunter.io/developer/1564707135) | [Brief Media](https://appshunter.io/developer/1018418856) |

## What reviewers say

### Your Peak Flow

[App page](https://appshunter.io/ios/app/your-peak-flow/id1544967818)

This app serves as a digital asthma diary, securely storing your lung function values locally on your device. Easily export your data as an Excel file to share with your doctor. Set up to three daily reminders to ensure consistent tracking of your peak flow.

**Highlights:** Digital asthma diary, Local data storage, Excel data export, Doctor sharing option, Daily tracking reminders

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Plumb's | Standards

[App page](https://appshunter.io/ios/app/plumbs-standards/id1556729700)

This app provides trusted veterinary clinical decision support, integrating comprehensive drug information and treatment guidance. It offers tools for diagnosis, treatment, and client education, designed for veterinary professionals.

**Highlights:** Veterinary drug and dosing information, Drug interaction checker, Conversion calculator, Diagnosis and treatment monographs, Management algorithms, Differential diagnosis lists, Client education handouts

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Super helpful
- 👍 Excellent resource
- 👍 Very helpful and easy to use
- 👍 Worth the price
- 👍 Amazing app

**What reviewers complain about**

- 🐛 Signing in issues
- 🐛 Impossible to get an answer from Support
- 💰 Disappointed - Careful before purchasing!
- 🐛 No calculator
- 🐛 Imposible to renew

**Reported bugs**

- Signing in issues
- Crashing
- Login/password reset problems
- Compatibility issues on iPad

**Requested features**

- Add calculator function
- Improve renewal/subscription management


## Frequently asked questions

### Is Your Peak Flow free?

Your Peak Flow costs $2.99, with no in-app purchases.

### Is Plumb's | Standards free?

Plumb's | Standards is free to download, with no in-app purchases.

### Which has better reviews, Your Peak Flow or Plumb's | Standards?

Plumb's | Standards is rated higher. Your Peak Flow averages 2.0 out of 5 from 1 ratings, while Plumb's | Standards averages 4.9 from 3.4K ratings.

### Do Your Peak Flow or Plumb's | Standards have ads?

Neither Your Peak Flow nor Plumb's | Standards shows ads.

### Which is updated more often, Your Peak Flow or Plumb's | Standards?

Your Peak Flow ships an update every 6 weeks, and Plumb's | Standards every 3 weeks. Most recently, Your Peak Flow was updated on October 27, 2026 and Plumb's | Standards on October 27, 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.*