# tadano calculator vs HELLO

The clearest difference is update cadence: HELLO at every 6 months against tadano calculator's every 27 months. tadano calculator's advantage is device support. On price, in-app purchases 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.

tadano calculator ships an update every 27 months, HELLO every 6 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | tadano calculator | HELLO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 27 months | **Every 6 months** |
| Size | 17 MB | 52 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [plusvision](https://appshunter.io/developer/1571455587) | [TADANO Ltd.](https://appshunter.io/developer/1436824453) |

## What reviewers say

### tadano calculator

[App page](https://appshunter.io/ios/app/tadano-calculator/id1584940548)

**Features:** macOS Compatibility

**In-app purchases:** none


### HELLO

[App page](https://appshunter.io/ios/app/hello-net-plus-for-evolt/id6474718802)

**In-app purchases:** none


## Frequently asked questions

### Is tadano calculator free?

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

### Is HELLO free?

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

### Which is updated more often, tadano calculator or HELLO?

tadano calculator ships an update every 27 months, and HELLO every 6 months. Most recently, tadano calculator was updated on October 30, 2026 and HELLO on October 30, 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.*