# PeakflowLogger vs TrainCurve

The clearest difference is price: TrainCurve at Free against PeakflowLogger's $0.99. TrainCurve also leads on ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

TrainCurve is free to download; PeakflowLogger costs $0.99 up front. PeakflowLogger sells 1 one-off in-app purchase and TrainCurve sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PeakflowLogger ships an update weekly, TrainCurve fortnightly. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PeakflowLogger | TrainCurve |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 8 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 12+ | 17+ |
| Developer | [OT Consulting UG](https://appshunter.io/developer/1784934985) | [ENRIQUE VALEROS MURIANA](https://appshunter.io/developer/6778818504) |

## What reviewers say

### PeakflowLogger

[App page](https://appshunter.io/ios/app/peakflowlogger/id6741367258)

Easily log and monitor your peak flow measurements to manage asthma and respiratory health. Visualize trends with color-coded zones and receive daily reminders. Securely sync data with healthcare providers.

**Highlights:** Peak flow measurement logging, Trend analysis charts, Color-coded health zones, Multiple user profiles, Daily measurement reminders, iCloud sync and data sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### TrainCurve

[App page](https://appshunter.io/ios/app/traincurve-training-load/id6782075437)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrainCurve Pro Monthly | $4.99 | per month |
| TrainCurve Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is PeakflowLogger free?

PeakflowLogger costs $0.99, and also offers in-app purchases.

### Is TrainCurve free?

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

### Do PeakflowLogger or TrainCurve have ads?

PeakflowLogger shows ads; TrainCurve does not.

### Which is updated more often, PeakflowLogger or TrainCurve?

PeakflowLogger ships an update weekly, and TrainCurve fortnightly. Most recently, PeakflowLogger was updated on October 19, 2026 and TrainCurve 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.*