# interCalculator vs Thumb calculator

The clearest difference is ads: interCalculator at none against Thumb calculator's shown. Thumb calculator's advantage is update cadence (every 2 weeks vs every 18 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

interCalculator ships an update every 18 months, Thumb calculator every 2 weeks. The most recent releases landed on June 5, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | interCalculator | Thumb calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/intercalculator/id1550864236/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 54 MB | 35 MB |
| Requires iOS | **15.6** | 15.8.3 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [interfinity Limited](https://appshunter.io/developer/1774724445) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### interCalculator

[App page](https://appshunter.io/ios/app/intercalculator/id1550864236)

This utility app offers real-time calculations with optional haptic feedback and a dark mode. It supports unit conversions, number base conversions, and finding divisors for integers.

**Highlights:** Real-time results, Haptic feedback, Number base conversion, Divisor finder, Dark Mode, Customizable color scheme

**In-app purchases:** none


### Thumb calculator

[App page](https://appshunter.io/ios/app/thumb-calculator/id6499389948)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is interCalculator free?

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

### Is Thumb calculator free?

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

### Do interCalculator or Thumb calculator have ads?

Thumb calculator shows ads; interCalculator does not.

### Which is updated more often, interCalculator or Thumb calculator?

interCalculator ships an update every 18 months, and Thumb calculator every 2 weeks. Most recently, interCalculator was updated on June 5, 2026 and Thumb calculator on September 17, 2026.

---

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