# Abacus vs Engineering & Tech Animations

The clearest difference is price: Abacus at $2.99 against Engineering & Tech Animations's $15.99. Engineering & Tech Animations's advantage is iOS requirement (12.0 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Abacus costs $2.99 and Engineering & Tech Animations $15.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 9 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Abacus | Engineering & Tech Animations |
| --- | --- | --- |
| Price | **$2.99** | $15.99 |
| Positive reviews | 15.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | Every 9 months |
| Monetization | Paid | — |
| Size | 12 MB | 30 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [俊 姜](https://appshunter.io/developer/974809005) | [Willie van Schalkwyk](https://appshunter.io/developer/1016415734) |

## 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


### Engineering & Tech Animations

[App page](https://appshunter.io/ios/app/engineering-and-tech-animations/id1412547939)

**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 Engineering & Tech Animations free?

Engineering & Tech Animations costs $15.99, with no in-app purchases.

### Do Abacus or Engineering & Tech Animations have ads?

Neither Abacus nor Engineering & Tech Animations shows ads.

### Which is updated more often, Abacus or Engineering & Tech Animations?

Abacus ships an update every 9 months, and Engineering & Tech Animations every 9 months. Most recently, Abacus was updated on November 2, 2026 and Engineering & Tech Animations on November 2, 2026.

---

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