# Stockfuse Lookback – Backtest Stock Portfolios

> Backtest stock portfolio performance and trading strategies historically. (iPhone/iPad app by Slope Labs LLC.)

- Source: https://appshunter.io/ios/app/stockfuse-lookback-backtest-stock-portfolios/id1153730257 (this page in markdown: same URL + `.md`)
- Developer: [Slope Labs LLC](https://appshunter.io/developer/825086900)
- Category: Finance, Business
- Price: Free
- Rating: 1.00/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 17 MB
- Languages: American English
- Released: 2016-09-18
- Data updated: 2026-06-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/stockfuse-lookback-backtest-stock-portfolios/id1153730257/reviews.md

## What is Stockfuse Lookback?

"Those who cannot remember the past are condemned to repeat it."

Lookback lets you backtest trading strategies and see how a portfolio of stocks would’ve performed historically. Enter a few holdings and with a single touch of a button, Lookback crunches the numbers and generates detailed historical returns and risk analytics, allowing you to make more informed investment decisions.

- Lookback supports stocks, ETFs, and ADRs listed on NYSE and NASDAQ.
- You can enter quantity either as number of shares or percentage of your overall portfolio.
- Short selling and leverage are automatically handled.
- You can customize your backtest horizons, ranging from the past three months to all the way back to the 1970s.
- See portfolio returns, volatility, Sharpe ratio, alpha, and beta at a glance.
- Lookback is built with Apple's new Swift 3 programming language and optimized for iOS 10.

## Key features

- Backtest trading strategies
- Analyze historical returns
- View risk analytics
- Supports stocks, ETFs, ADRs
- Customizable backtest horizons
- Calculates Sharpe ratio, alpha, beta

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/stockfuse-lookback-backtest-stock-portfolios/id1153730257/reviews.md

### 1/5 — BEST APP IDEA... that doesn’t work, sadly

*2021-07-01*

I have been looking for something like this forever and a day. Unfortunately, we all know that the App Store only shows apps that have sponsored the company and paid for higher hits so amazing apps like this very rarely show up in the search results. That being said, this is awesome. It is the cleanest most easy to use in her face I have ever seen. Unfortunately, it doesn’t work.Whatever stock quote server they are trying to pull data from, the connection is unsuccessful and the app is unable to calculate the portfolio.

### 1/5 — Doesn’t Work

*2020-07-05*

Installed this app on my iPhone but i was disappointed.  I’d guess that it needs some kind of data feed but there is no additional instructions .

### 2/5 — Data won’t run on app

*2020-01-19*

The actual historic data doesn’t work on this application.

### 5/5 — Elegant, intuitive, and effective

*2016-09-20*

This is an incredibly intuitive app for backtesting stock portfolios. The interface is very nice and super easy to use. It also has some very long-term indices, painting a much better picture of portfolio performance across economic environment.

## Frequently asked questions about Stockfuse Lookback

### What types of securities does Stockfuse Lookback support?

Stockfuse Lookback supports stocks, ETFs, and ADRs listed on the NYSE and NASDAQ. This allows for a broad range of assets to be included in your backtesting.

### How far back can I backtest my portfolio with Stockfuse Lookback?

You can customize your backtest horizons in Stockfuse Lookback, ranging from the past three months all the way back to the 1970s. This provides extensive historical data for analysis.

### Does Stockfuse Lookback handle short selling and leverage?

Yes, Stockfuse Lookback automatically handles short selling and leverage in its backtesting calculations. This ensures a more accurate representation of potential trading outcomes.

### What key financial metrics does Stockfuse Lookback provide?

Stockfuse Lookback provides key metrics such as portfolio returns, volatility, Sharpe ratio, alpha, and beta at a glance. These analytics help in understanding the risk and reward of your strategies.

### Is Stockfuse Lookback available on multiple devices?

Stockfuse Lookback is optimized for iOS devices, including iPhone, iPad, and iPod. It is built with Apple's Swift 3 programming language and supports iOS 10.

### How often is Stockfuse Lookback updated?

The latest version of Stockfuse Lookback is 1.2, last updated on January 17, 2017. The app was initially released on September 18, 2016.

### What is the user sentiment for Stockfuse Lookback?

Stockfuse Lookback has a rating of 1.0 stars from 4 ratings. This indicates a very low user satisfaction based on the available review data.

### Does Stockfuse Lookback have ads?

No, Stockfuse Lookback does not contain advertisements. The app is free to download and use without any ad interruptions.

## Version history (last 2 releases)

### 1.2 — 2017-01-17

This app has been updated by Apple to display the Apple Watch app icon.

This update includes bug fixes and performance enhancements.

### 1.0 — 2016-09-15

No release notes.

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## More apps by Slope Labs LLC

- [Stockfuse – Virtual Stock Market Game](https://appshunter.io/ios/app/stockfuse-virtual-stock-market-game/id930672169)

All apps by Slope Labs LLC: https://appshunter.io/developer/825086900

## Related topics

[slope labs llc](https://appshunter.io/ios/topics/slope-labs-llc)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*