# Calculator & abacus training vs microbitIR

The clearest difference is in-app purchases: microbitIR at none against Calculator & abacus training's 1. microbitIR also leads on ads (none vs shown). Calculator & abacus training's advantage is iOS requirement (12.0 vs 17.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Calculator & abacus training sells 1 one-off in-app purchase. microbitIR asks for nothing beyond the download.

Calculator & abacus training ships an update every 2 months, microbitIR every 6 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Calculator & abacus training | microbitIR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 4 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kenji kiuchi](https://appshunter.io/developer/553473005) | [Atsushi Yamada](https://appshunter.io/developer/301497489) |

## What reviewers say

### Calculator & abacus training

[App page](https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812)

Enhance your math skills with calculation drills for abacus and calculator. Customize training sessions for addition, subtraction, multiplication, and division, with advanced options available after purchase. Challenge yourself in a mode where problems increase in difficulty.

**Highlights:** Abacus and calculator training, Customizable training modes, Addition, subtraction, multiplication, division, Progress tracking, Challenge mode with increasing difficulty, Up to 5-digit calculations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad & All function release | $9.99 | one-time |


### microbitIR

[App page](https://appshunter.io/ios/app/microbitir/id6443525690)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculator & abacus training free?

Calculator & abacus training is free to download, with in-app purchases available.

### Is microbitIR free?

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

### Do Calculator & abacus training or microbitIR have ads?

Calculator & abacus training shows ads; microbitIR does not.

### Which is updated more often, Calculator & abacus training or microbitIR?

Calculator & abacus training ships an update every 2 months, and microbitIR every 6 weeks. Most recently, Calculator & abacus training was updated on October 24, 2026 and microbitIR on October 27, 2026.

---

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