# Memo Wizard vs Ring Sizer

The clearest difference is ads: Memo Wizard at none against Ring Sizer's shown. Memo Wizard also leads on update cadence (every 5 days vs fortnightly) and device support (4 vs 1). Ring Sizer's advantage is iOS requirement (16.6 vs 18.1). On price and in-app purchases there is nothing between them.

Both are free to download. Memo Wizard sells 5 in-app purchases, starting at $5.99 per 7 days and Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Memo Wizard ships an update every 5 days, Ring Sizer fortnightly. The most recent releases landed on September 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Memo Wizard | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 50 MB | 62 MB |
| Requires iOS | 18.1 | **16.6** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pawel Wichniewicz](https://appshunter.io/developer/1621815287) | [Mastertex Fab](https://appshunter.io/developer/1857166298) |

## What reviewers say

### Memo Wizard

[App page](https://appshunter.io/ios/app/memo-wizard/id6738702004)

**Features:** Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plan Pro (Weekly) | $5.99 | per 7 days |
| Plan Pro (Monthly) | $12.99 | per month |
| Small Pack of Credits | $1.99 | one-time |
| Medium Pack of Credits | $9.99 | one-time |
| Big Pack of Credits | $19.99 | one-time |


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-finger-size/id6788002855)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MeasureRing One Week | $4.99 | per 7 days |
| MeasureRing One Year | $19.99 | per year |


## Frequently asked questions

### Is Memo Wizard free?

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

### Is Ring Sizer free?

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

### Do Memo Wizard or Ring Sizer have ads?

Ring Sizer shows ads; Memo Wizard does not.

### Which is updated more often, Memo Wizard or Ring Sizer?

Memo Wizard ships an update every 5 days, and Ring Sizer fortnightly. Most recently, Memo Wizard was updated on September 26, 2026 and Ring Sizer on October 12, 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.*