# elec tools vs Flyback Transformer Designer

The clearest difference is in-app purchases: elec tools at none against Flyback Transformer Designer's 1. elec tools also leads on update cadence (every 6 days vs every 2 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Flyback Transformer Designer sells 1 in-app purchase, starting at $29.99 per year. elec tools asks for nothing beyond the download.

elec tools ships an update every 6 days, Flyback Transformer Designer every 2 months. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | elec tools | Flyback Transformer Designer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Size | 21 MB | 8 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [德绪 郑](https://appshunter.io/developer/1886307616) | [建忠 徐](https://appshunter.io/developer/1871049057) |

## What reviewers say

### elec tools

[App page](https://appshunter.io/ios/app/elec-tools/id6760829645)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flyback Transformer Designer

[App page](https://appshunter.io/ios/app/flyback-transformer-designer/id6771727431)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual subscription | $29.99 | per year |


## Frequently asked questions

### Is elec tools free?

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

### Is Flyback Transformer Designer free?

Flyback Transformer Designer is free to download, with in-app purchases available.

### Do elec tools or Flyback Transformer Designer have ads?

Neither elec tools nor Flyback Transformer Designer shows ads.

### Which is updated more often, elec tools or Flyback Transformer Designer?

elec tools ships an update every 6 days, and Flyback Transformer Designer every 2 months. Most recently, elec tools was updated on September 13, 2026 and Flyback Transformer Designer on September 23, 2026.

---

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