# BTMSR vs Tag

The clearest difference is iOS requirement: Tag at 15.1 against BTMSR's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. BTMSR sells 2 in-app purchases, starting at $4.99 per month and Tag sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

BTMSR ships an update every 8 days, Tag weekly. The most recent releases landed on October 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BTMSR | Tag |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Size | 1 MB | 35 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TCool LTD.](https://appshunter.io/developer/1711330864) | [Meraki Dimension, Lda.](https://appshunter.io/developer/1315439032) |

## What reviewers say

### BTMSR

[App page](https://appshunter.io/ios/app/btmsr-postech/id6745852846)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BTMSR Monthly Membership | $4.99 | per month |
| BTMSR Annual Membership | $19.99 | per year |


### Tag

[App page](https://appshunter.io/ios/app/tag-nfc-reader-and-writer/id6759090078)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $4.99 | per 7 days |
| Lifetime Pro | $12.99 | one-time |


## Frequently asked questions

### Is BTMSR free?

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

### Is Tag free?

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

### Do BTMSR or Tag have ads?

Neither BTMSR nor Tag shows ads.

### Which is updated more often, BTMSR or Tag?

BTMSR ships an update every 8 days, and Tag weekly. Most recently, BTMSR was updated on October 30, 2026 and Tag on October 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.*