# WhatPay vs Simple Register

The clearest difference is update cadence: Simple Register at every 2 weeks against WhatPay's every 5 months. Simple Register also leads on device support (3 vs 1). WhatPay's advantage is iOS requirement (18.0 vs 26.5). On price, ads and in-app purchases there is nothing between them.

Both are free to download. WhatPay sells 1 one-off in-app purchase and Simple Register sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

WhatPay ships an update every 5 months, Simple Register every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | WhatPay | Simple Register |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (13 ratings)](https://appshunter.io/ios/app/simple-register/id6789787443/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 5 MB | 14 MB |
| Requires iOS | **18.0** | 26.5 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [PRABAKARAN RAVICHANDRAN](https://appshunter.io/developer/1851353838) | [Jennifer Hendrickson](https://appshunter.io/developer/1889177840) |

## What reviewers say

### WhatPay

[App page](https://appshunter.io/ios/app/whatpay-bills-and-subscriptions/id6756521274)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WhatPay Pro | $1.99 | one-time |


### Simple Register

[App page](https://appshunter.io/ios/app/simple-register/id6789787443)

This app provides a digital checkbook register for tracking personal finances. It allows users to quickly record transactions, manage bills, and reconcile statements without connecting to bank accounts. Designed for privacy, it offers local-only mode and optional biometric security.

**Highlights:** Digital checkbook register, Record payments, deposits, checks, transfers, Bill planning and reminders, Statement reconciliation, Multiple register support, Data export to CSV/PDF, Optional biometric security

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Full Unlock | $9.99 | one-time |
| Generous Tip | $9.99 | one-time |


## Frequently asked questions

### Is WhatPay free?

WhatPay is free to download, with in-app purchases available.

### Is Simple Register free?

Simple Register is free to download, with in-app purchases available.

### Do WhatPay or Simple Register have ads?

Neither WhatPay nor Simple Register shows ads.

### Which is updated more often, WhatPay or Simple Register?

WhatPay ships an update every 5 months, and Simple Register every 2 weeks. Most recently, WhatPay was updated on October 30, 2026 and Simple Register on November 5, 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.*