# Abacus vs Circular Segment Calculator

The clearest difference is review sentiment: Abacus at 15% against Circular Segment Calculator's 0%. Abacus also leads on update cadence (every 9 months vs every 23 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Abacus costs $2.99 and Circular Segment Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Abacus ships an update every 9 months, Circular Segment Calculator every 23 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Abacus | Circular Segment Calculator |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/circular-segment-calculator/id1628037532/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **15.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 23 months |
| Monetization | Paid | Paid |
| Size | 12 MB | 1 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [俊 姜](https://appshunter.io/developer/974809005) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### Abacus

[App page](https://appshunter.io/ios/app/abacus-dancing-fingers/id1153561673)

This educational app combines ancient calculation wisdom with modern technology. It features a beautiful interface with large beads, supports decimal points and negative numbers, and offers multilingual support for a fun and engaging learning experience.

**Highlights:** Beautiful interface with large beads, Support for decimal points and negative numbers, 21-column abacus, Multilingual support (19 languages), Interactive calculation examples

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

**In-app purchases:** none


### Circular Segment Calculator

[App page](https://appshunter.io/ios/app/circular-segment-calculator/id1628037532)

Instantly calculate all six properties of any circular segment by entering just two values. Ideal for students, engineers, and makers needing quick, reliable geometry solutions on the go.

**Highlights:** Calculate radius, angle, arc length, chord length, height, and area, Two input modes: Angle & Radius or Chord & Height, Real-time results update as you type, Step-by-step formula explanations, Tap to copy results, Supports multiple units and dark mode

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

**In-app purchases:** none


## Frequently asked questions

### Is Abacus free?

Abacus costs $2.99, with no in-app purchases.

### Is Circular Segment Calculator free?

Circular Segment Calculator costs $2.99, with no in-app purchases.

### Do Abacus or Circular Segment Calculator have ads?

Neither Abacus nor Circular Segment Calculator shows ads.

### Which is updated more often, Abacus or Circular Segment Calculator?

Abacus ships an update every 9 months, and Circular Segment Calculator every 23 months. Most recently, Abacus was updated on October 8, 2026 and Circular Segment Calculator on October 2, 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.*