# K2 Sim vs Trader Backtesting

The clearest difference is in-app purchases: K2 Sim at none against Trader Backtesting's 2. K2 Sim also leads on ads (none vs shown). Trader Backtesting's advantage is update cadence (every 2 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Trader Backtesting sells 2 in-app purchases, starting at $4.99 per month. K2 Sim asks for nothing beyond the download.

K2 Sim ships an update every 2 weeks, Trader Backtesting every 2 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | K2 Sim | Trader Backtesting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/k2-sim/id6757589750/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 6 MB | 100 MB |
| Requires iOS | **16.0** | 16.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [MIKYAS SULTAN BUSIRA](https://appshunter.io/developer/1867656807) | [TraderBacktesting OU](https://appshunter.io/developer/1896050767) |

## What reviewers say

### K2 Sim

[App page](https://appshunter.io/ios/app/k2-sim/id6757589750)

Explore market charts and study trading ideas with historical data. Analyze price action and strategy behavior over time to learn how patterns have performed. This tool is for educational and research purposes only, not for live trading or financial advice.

**Highlights:** Explore market charts, Study trading ideas, Use historical market data, View price action, Review strategy behavior, Learn pattern performance

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

**In-app purchases:** none


### Trader Backtesting

[App page](https://appshunter.io/ios/app/trader-backtesting/id6765725763)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trader Backtesting Premium Monthly | $4.99 | per month |
| Trader Backtesting Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is K2 Sim free?

K2 Sim is free to download, with no in-app purchases.

### Is Trader Backtesting free?

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

### Do K2 Sim or Trader Backtesting have ads?

Trader Backtesting shows ads; K2 Sim does not.

### Which is updated more often, K2 Sim or Trader Backtesting?

K2 Sim ships an update every 2 weeks, and Trader Backtesting every 2 days. Most recently, K2 Sim was updated on October 7, 2026 and Trader Backtesting on October 9, 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.*