# Great Circle Tool vs iRandomer

The clearest difference is price: iRandomer at Free against Great Circle Tool's $2.99. iRandomer also leads on rating (4.8 vs 2.6). Great Circle Tool's advantage is ads (none vs shown) and update cadence (every 4 days vs every 4 months). On ratings volume, in-app purchases and device support there is nothing between them.

iRandomer is free to download; Great Circle Tool costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iRandomer holds the better App Store score, 4.8 against 2.6. Both are backed by a comparable volume of ratings — 5 and 5 respectively.

Great Circle Tool ships an update every 4 days, iRandomer every 4 months. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Great Circle Tool | iRandomer |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/great-circle-tool/id1176844036/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/irandomer/id1660338303/reviews)** |
| Number of ratings | 5 | 5 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 4 months |
| Monetization | Paid | **Ad-supported** |
| Size | 11 MB | 20 MB |
| Requires iOS | **9.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Learrocket Productions, LLC](https://appshunter.io/developer/1169376314) | [Daichi Kato](https://appshunter.io/developer/1658554826) |

## What reviewers say

### Great Circle Tool

[App page](https://appshunter.io/ios/app/great-circle-tool/id1176844036)

Calculate the shortest distance between two points on Earth's surface. Ideal for pilots, it estimates flight times based on aircraft speed. A valuable planning utility for aviation professionals.

**Highlights:** Great circle distance calculation, Airport to airport distance, Flight time estimation, Aircraft speed input, Pilot planning tool

**Features:** macOS Compatibility

**In-app purchases:** none


### iRandomer

[App page](https://appshunter.io/ios/app/irandomer/id1660338303)

Generate random numbers for various purposes like selecting winners or creating teams. Features include customizable ranges, duplicate settings, and iCloud saving. Supports dark mode and secure access with Face ID/Passcode.

**Highlights:** Customizable number ranges, Duplicate number control, Infinite number generation option, iCloud data saving, CSV and JSON export, Dark mode support, Face ID/Passcode protection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Great Circle Tool free?

Great Circle Tool costs $2.99, with no in-app purchases.

### Is iRandomer free?

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

### Which has better reviews, Great Circle Tool or iRandomer?

iRandomer is rated higher. Great Circle Tool averages 2.6 out of 5 from 5 ratings, while iRandomer averages 4.8 from 5 ratings.

### Do Great Circle Tool or iRandomer have ads?

iRandomer shows ads; Great Circle Tool does not.

### Which is updated more often, Great Circle Tool or iRandomer?

Great Circle Tool ships an update every 4 days, and iRandomer every 4 months. Most recently, Great Circle Tool was updated on October 7, 2026 and iRandomer on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*