# Fibo - Fibonacci Calculator — Support and resistance tool

> Calculates Fibonacci retracement levels for technical analysis support and resistance. (iPhone/iPad app by Maria Fernanda de Barros e Azevedo.)

- Source: https://appshunter.io/ios/app/fibo-fibonacci-calculator/id1441449211 (this page in markdown: same URL + `.md`)
- Developer: [Maria Fernanda de Barros e Azevedo](https://appshunter.io/developer/1441449210)
- Category: Finance, Utilities
- Price: $1.99
- Rating: 3.80/5 from 30 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 11 MB
- Languages: English
- Released: 2018-11-28
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fibo-fibonacci-calculator/id1441449211/reviews.md

## What is Fibo?

Easy calculate Fibonacci retracement levels. Just provide high-low value interval and get the current value ratio and levels (23.6%, 38.2%, 50%, 61.8%, 76.4%).

What is a 'Fibonacci Retracement'?
A Fibonacci retracement is a term used in technical analysis that refers to areas of support (stops going lower) or resistance (stops going higher). Fibonacci retracement levels use horizontal lines to indicate areas of support or resistance at the key Fibonacci levels before the trend continues in the original direction. These levels are created by drawing a trendline between the high and low and then dividing the vertical distance by the key Fibonacci ratios of 23.6%, 38.2%, 50%, 61.8% and 100%.

## Key features

- Calculate Fibonacci retracement levels
- Determine support and resistance areas
- Input high-low value intervals
- View key Fibonacci ratios (23.6% to 76.4%)
- Supports iPhone and iPod

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/fibo-fibonacci-calculator/id1441449211/reviews.md

### 2/5 — Check price

*2022-11-21, version 1.1*

Showed a price of $1.99 billed for $4.99
Not worth $4.99

### 2/5 — Not really what I was looking for

*2021-04-15, version 1.1*

It really doesn’t have much information about how to trade that one stock after you get the number. I was thinking that you could just input a stock and will calculate it for you but no....You have to actually input your own numbers, and you have to pick your own time frame not from the app but from the particular stock chart! Ugh :(

## Frequently asked questions about Fibo

### What is Fibo used for?

Fibo is a calculator designed to help users determine Fibonacci retracement levels. These levels are used in technical analysis to identify potential areas of support and resistance in financial markets.

### How does Fibo calculate levels?

You provide the high-low value interval for a trading period. Fibo then uses key Fibonacci ratios such as 23.6%, 38.2%, 50%, 61.8%, and 76.4% to calculate these levels.

### What devices does Fibo support?

Fibo is compatible with iPhone and iPod devices, allowing users to perform calculations on the go.

### What is the age rating for Fibo?

Fibo has an age rating of 4+, making it suitable for a wide range of users interested in financial analysis tools.

### When was Fibo last updated?

The latest version of Fibo was released on December 6, 2018. The app was initially released on November 28, 2018.

### What is the price of Fibo?

Fibo is a paid application and costs $1.99. This one-time purchase grants you access to its Fibonacci calculation features.

### Does Fibo have ads?

The provided data does not specify if Fibo contains advertisements. As a paid app, it may be ad-free, but this is not explicitly stated.

### What is the user rating for Fibo?

Fibo has an average rating of 3.8 stars based on 30 user ratings. This indicates a generally positive reception from its users.

## Version history (last 2 releases)

### 1.1 — 2018-12-06

- Layout changes
- Bug fixes
- Welcome wizard

### 1.0 — 2018-11-28

No release notes.

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## More apps by Maria Fernanda de Barros e Azevedo

- [Tangle Patterns Mega Pack](https://appshunter.io/ios/app/tangle-patterns-mega-pack/id928918285)
- [Tangleverse: Keep your tangles](https://appshunter.io/ios/app/tangleverse-keep-your-tangles/id1575306991)

All apps by Maria Fernanda de Barros e Azevedo: https://appshunter.io/developer/1441449210

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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 2026-06-10.*