# Biosearch vs Seritag NFC Encoder

The clearest difference is in-app purchases: Biosearch at none against Seritag NFC Encoder's 3. Seritag NFC Encoder's advantage is update cadence (every 11 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Seritag NFC Encoder sells 3 one-off in-app purchases. Biosearch asks for nothing beyond the download.

Biosearch ships an update monthly, Seritag NFC Encoder every 11 days. The most recent releases landed on October 9, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Biosearch | Seritag NFC Encoder |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 107 MB | 34 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scaffold Digital Ltd](https://appshunter.io/developer/1407243594) | [TabDesk Ltd](https://appshunter.io/developer/1709292571) |

## What reviewers say

### Biosearch

[App page](https://appshunter.io/ios/app/biosearch/id1560367615)

**In-app purchases:** none


### Seritag NFC Encoder

[App page](https://appshunter.io/ios/app/seritag-nfc-encoder/id6739066343)

This utility app allows users to read, write, and lock various NFC tags. It can scan tags to retrieve encoded data like URLs or text, identify unique chip IDs, and determine if a chip is locked or writable.

**Highlights:** Read NFC tag data (URL, text), Get NFC chip Unique ID, Check if NFC chip is locked, Check if NFC chip is writable, Write data to NFC tags, Lock NFC tags

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Password Features: 5 Tags | $1.99 | one-time |
| Password Features: 25 Tags | $4.99 | one-time |
| Password Features: 100 Tags | $14.99 | one-time |


## Frequently asked questions

### Is Biosearch free?

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

### Is Seritag NFC Encoder free?

Seritag NFC Encoder is free to download, with in-app purchases available.

### Do Biosearch or Seritag NFC Encoder have ads?

Neither Biosearch nor Seritag NFC Encoder shows ads.

### Which is updated more often, Biosearch or Seritag NFC Encoder?

Biosearch ships an update monthly, and Seritag NFC Encoder every 11 days. Most recently, Biosearch was updated on October 9, 2026 and Seritag NFC Encoder 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.*