# Trigonometry Portal AR vs Fibonacci Sequence

The clearest difference is price: Fibonacci Sequence at Free against Trigonometry Portal AR's $1.99. Fibonacci Sequence also leads on update cadence (every 4 days vs every 37 months) and device support (4 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Fibonacci Sequence is free to download; Trigonometry Portal AR costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trigonometry Portal AR ships an update every 37 months, Fibonacci Sequence every 4 days. The most recent releases landed on June 1, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Trigonometry Portal AR | Fibonacci Sequence |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/trigonometry-portal-ar/id1358343863/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 33 MB | 1 MB |
| Requires iOS | **12.0** | 13.3 |
| Devices | iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) |

## What reviewers say

### Trigonometry Portal AR

[App page](https://appshunter.io/ios/app/trigonometry-portal-ar/id1358343863)

Explore trigonometry concepts in an augmented reality environment. This app creates virtual rooms where you can interact with information about key terms and ideas from the high school curriculum. Walk around, tap on objects, and hear definitions read aloud.

**Highlights:** Augmented reality exploration, Virtual trigonometry rooms, Interactive information access, Siri-read aloud definitions, Scrollable term lists

**Features:** macOS Compatibility

**In-app purchases:** none


### Fibonacci Sequence

[App page](https://appshunter.io/ios/app/fibonacci-sequence/id1660404184)

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry Portal AR free?

Trigonometry Portal AR costs $1.99, with no in-app purchases.

### Is Fibonacci Sequence free?

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

### Do Trigonometry Portal AR or Fibonacci Sequence have ads?

Neither Trigonometry Portal AR nor Fibonacci Sequence shows ads.

### Which is updated more often, Trigonometry Portal AR or Fibonacci Sequence?

Trigonometry Portal AR ships an update every 37 months, and Fibonacci Sequence every 4 days. Most recently, Trigonometry Portal AR was updated on June 1, 2026 and Fibonacci Sequence on October 20, 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.*