# Plumb BillPay vs Null Island

The clearest difference is update cadence: Null Island at every 2 weeks against Plumb BillPay's every 4 weeks. Plumb BillPay's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Plumb BillPay against 5.0 for Null Island. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Plumb BillPay ships an update every 4 weeks, Null Island every 2 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Plumb BillPay | Null Island |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/plumb-billpay/id6447216735/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/null-island/id6754407865/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 42 MB | 39 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Think Plumb, LLC](https://appshunter.io/developer/1680620162) | [NullPoint LLC](https://appshunter.io/developer/1848218345) |

## What reviewers say

### Plumb BillPay

[App page](https://appshunter.io/ios/app/plumb-billpay/id6447216735)

This app simplifies bill management for clients and their advisors. It offers a secure platform to approve bills, track payment status, and communicate with the service team. Enjoy a seamless and intuitive financial experience with bank-level security.

**Highlights:** Bill approval workflow, Bill payment status tracking, Intuitive dashboard, Bill upload options, Expense detail access, Communication with support

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

**In-app purchases:** none


### Null Island

[App page](https://appshunter.io/ios/app/null-island/id6754407865)

This app provides court-grade evidence for tax audits by compiling location data, travel records, and expense receipts. It is designed to support defensible location records and resolve audits confidently and quickly.

**Highlights:** Court-grade tax audit evidence, Supports tax domicile and residency, Income allocation and UBT tracking, Proprietary location algorithms, Corroborates residency with travel and expenses, Audit-ready evidence output, Concierge-style user support

**In-app purchases:** none


## Frequently asked questions

### Is Plumb BillPay free?

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

### Is Null Island free?

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

### Which has better reviews, Plumb BillPay or Null Island?

Plumb BillPay and Null Island are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Plumb BillPay or Null Island have ads?

Neither Plumb BillPay nor Null Island shows ads.

### Which is updated more often, Plumb BillPay or Null Island?

Plumb BillPay ships an update every 4 weeks, and Null Island every 2 weeks. Most recently, Plumb BillPay was updated on October 24, 2026 and Null Island on October 21, 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.*