# Curveseries vs BidFX Trader

The clearest difference is update cadence: BidFX Trader at every 5 weeks against Curveseries's every 5 months. Curveseries's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 18.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Curveseries ships an update every 5 months, BidFX Trader every 5 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Curveseries | BidFX Trader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 7 MB | 31 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chang Ching Chng](https://appshunter.io/developer/1239780941) | [BidFX](https://appshunter.io/developer/1474061265) |

## What reviewers say

### Curveseries

[App page](https://appshunter.io/ios/app/curveseries/id1239780942)

**Features:** macOS Compatibility

**In-app purchases:** none


### BidFX Trader

[App page](https://appshunter.io/ios/app/bidfx-trader/id1474061266)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Curveseries free?

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

### Is BidFX Trader free?

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

### Do Curveseries or BidFX Trader have ads?

Neither Curveseries nor BidFX Trader shows ads.

### Which is updated more often, Curveseries or BidFX Trader?

Curveseries ships an update every 5 months, and BidFX Trader every 5 weeks. Most recently, Curveseries was updated on October 29, 2026 and BidFX Trader on October 25, 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.*