# Helitrends vs Wyeth BPA

The clearest difference is in-app purchases: Wyeth BPA at none against Helitrends's 4. Wyeth BPA also leads on iOS requirement (13.0 vs 17.6). Helitrends's advantage is update cadence (every 4 weeks vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. Helitrends sells 3 in-app purchases, starting at $9.99 per month. Wyeth BPA asks for nothing beyond the download.

Helitrends ships an update every 4 weeks, Wyeth BPA every 12 months. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Helitrends | Wyeth BPA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (20 ratings)](https://appshunter.io/ios/app/helitrends/id1471892720/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 12 months |
| Monetization | Freemium | — |
| Size | 51 MB | 23 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Helitrends Sp. z o. o.](https://appshunter.io/developer/1471892719) | [Proof Authentication Corporation](https://appshunter.io/developer/1604240795) |

## What reviewers say

### Helitrends

[App page](https://appshunter.io/ios/app/helitrends/id1471892720)

This app helps helicopter pilots, mechanics, and operators monitor engine performance. It calculates power checks, records engine data, and tracks trends for proactive maintenance. Compatible with various helicopter models and configurations.

**Highlights:** Automatic engine power checks, Effortless data recording, Engine condition trend monitoring, Versatile compatibility with helicopter configurations, Automatic synchronization across users, Real-time engine health monitoring, Alerts for negative results

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly Access | $9.99 | per month |
| Unlimited Annual Access | $59.99 | per year |
| Unlimited Annual Access | $59.99 | per year |


### Wyeth BPA

[App page](https://appshunter.io/ios/app/wyeth-bpa/id1644756975)

**In-app purchases:** none


## Frequently asked questions

### Is Helitrends free?

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

### Is Wyeth BPA free?

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

### Do Helitrends or Wyeth BPA have ads?

Neither Helitrends nor Wyeth BPA shows ads.

### Which is updated more often, Helitrends or Wyeth BPA?

Helitrends ships an update every 4 weeks, and Wyeth BPA every 12 months. Most recently, Helitrends was updated on October 18, 2026 and Wyeth BPA on October 19, 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.*