# SmartPayroll vs IRD Tax Calc

The clearest difference is update cadence: SmartPayroll at every 3 months against IRD Tax Calc's every 14 months. SmartPayroll also leads on iOS requirement (7.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SmartPayroll ships an update every 3 months, IRD Tax Calc every 14 months. The most recent releases landed on October 13, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SmartPayroll | IRD Tax Calc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | Free | — |
| Size | 61 MB | 17 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SmartPayroll](https://appshunter.io/developer/975779688) | [TXTVault](https://appshunter.io/developer/501285606) |

## What reviewers say

### SmartPayroll

[App page](https://appshunter.io/ios/app/smartpayroll/id975779689)

Automate payroll for small to medium New Zealand businesses. This secure system handles employee payments, deductions, and tax filings, saving time and reducing hassle. The mobile app allows for easy pay run approvals and due date tracking.

**Highlights:** Automated payroll processing, Direct employee wage payments, Deduction management (PAYE, KiwiSaver), Tax filing with Inland Revenue, Pay run due date tracking, Mobile pay run approval

**Features:** macOS Compatibility

**In-app purchases:** none


### IRD Tax Calc

[App page](https://appshunter.io/ios/app/ird-tax-calc/id1177670898)

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartPayroll free?

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

### Is IRD Tax Calc free?

IRD Tax Calc is free to download, with no in-app purchases.

### Do SmartPayroll or IRD Tax Calc have ads?

Neither SmartPayroll nor IRD Tax Calc shows ads.

### Which is updated more often, SmartPayroll or IRD Tax Calc?

SmartPayroll ships an update every 3 months, and IRD Tax Calc every 14 months. Most recently, SmartPayroll was updated on October 13, 2026 and IRD Tax Calc 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.*