# RFIDify vs Sizewise

The clearest difference is in-app purchases: RFIDify at none against Sizewise's 1. RFIDify also leads on iOS requirement (13.0 vs 26.0). Sizewise's advantage is update cadence (every 3 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Sizewise sells 1 one-off in-app purchase. RFIDify asks for nothing beyond the download.

RFIDify ships an update every 4 months, Sizewise every 3 days. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RFIDify | Sizewise |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 18 MB | 1 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RFIDify LLC](https://appshunter.io/developer/1610067962) | [Anatoli Petrosyants](https://appshunter.io/developer/848828498) |

## What reviewers say

### RFIDify

[App page](https://appshunter.io/ios/app/rfidify/id1610067960)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sizewise

[App page](https://appshunter.io/ios/app/sizewise-ring-sizer-and-finder/id6821928240)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium Themes | $1.99 | one-time |


## Frequently asked questions

### Is RFIDify free?

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

### Is Sizewise free?

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

### Do RFIDify or Sizewise have ads?

Neither RFIDify nor Sizewise shows ads.

### Which is updated more often, RFIDify or Sizewise?

RFIDify ships an update every 4 months, and Sizewise every 3 days. Most recently, RFIDify was updated on October 27, 2026 and Sizewise on October 29, 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.*