RS3 NFC Setup vs NFC ReWriter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RS3 NFC Setup
Configure an NFC reader for various card types like iClass, PROX, and MiFare. Easily adjust settings such as card hold time, output format (decimal/HEX), and Wiegand bits. Settings are saved directly to the device's flash memory.
- NFC reader setup
- Supports iClass, PROX, ICODE, MiFare, AWID
- Configure card hold time
- Set output format (decimal/HEX)
- Control Wiegand bits
- Setup delimiters
- Persistent settings storage
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This app REQUIRES the idChamp Bluetooth Smart (BLE) NFC reader/scanner with firmware 2.0 or later, and iOS 9.0.2 It's used for setup for NFC for iClass, PROX, ICODE, MiFare, AWID, & More. Quickly and easily change settings. Select card type for ISO15693 & ISO14444A CSN, iClass CSN, Tag-It CSN, my-d CSN (Infineon), I-Code CSN (Philips, NXP), etag CSN (Secura Key), MiFare Ultralight CSN (Philips, NXP), I-tag CSN (IBM), DESFire CSN, Advant CSN (Legic), HID iClass ID, Secura Key -01, ReadyKey Pro UID, Radio Key (Secura Key -02), Nexwatch (Honeywell), NexKey, Quadrakey, KeyMate, 2Smart Key (Honeywell), Keri UID, Pyramid (Farpointe Data) PSC-1 26 Bit, Keri PSC-1 26 bit, Farpointe Data (Pyramid) PSC-1 26 bit, Keri NXT UID, ioProx (Kantech), Indala ECR Custom, Indala ASP+ Custom, Indala ASP+ UID (Motorola), Indala ASP Custom, Indala ASP UID (Motorola), Indala ASP 26 bit (Motorola), ID Teck, HiTag 2, HiTag 2 Alternate, HiTag 1 & S, HiTag 1 & S Alternate, HID Prox UID, HID Prox, GProx-II UID, EM 410x Alternate, Rosslare, EM 410x, DIGITAG, Paradox, CDVI, CASI-RUSCO (GE Security, UTC), Russwin UID, Cardax UID, Awid Setup card hold time (determine how long card must be present for read) Setup output format between decimal and HEX, control Wiegand bits output format, strip leading and trailing bits, enable/disable FAC (Facility Access Code), Reverse / Invert Wiegand bits, and more. Setup delimiters for character(s) sent before and after each scan for using the RS3 NFC reader in keyboard simulation mode. Settings are stored in RS3 unit flash memory so settings are persistent.
NFC ReWriter
Easily write NDEF messages to NFC tags. This open-source tool also allows for custom transceive commands using a built-in toolkit.
- Write NDEF messages to NFC tags
- Write custom transceive commands
- Open-source project
- React-Native based
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NFC ReWriter is an open source project built on-top-of React-Native. This app could help you easily write NDEF message to NFC Forum tag. Also let you write custom transceive commands in TOOLKIT.
Screenshots
Verdict
The clearest difference is rating: NFC ReWriter at 4.7 against RS3 NFC Setup's 1.0. NFC ReWriter also leads on update cadence (every 2 months vs every 5 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NFC ReWriter holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
RS3 NFC Setup ships an update every 5 months, NFC ReWriter every 2 months. Both last shipped on November 11, 2026.
| Parameter | RS3 NFC Setup | NFC ReWriter |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 9 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Serialio Ltd. | revteltech |
Customer experience
RS3 NFC Setup
NFC ReWriter
In-app purchases
RS3 NFC Setup
No in-app purchases
NFC ReWriter
No in-app purchases









