Comparison

RS3 NFC Setup vs Sign PDF Documents

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Sign PDF Documents

Easily sign, stamp, and scan documents directly from your mobile device. Create custom signatures and add official seals to PDFs and other files in seconds. Streamline your paperwork and maintain a paperless workflow anywhere, anytime.

Highlights
  • Sign documents instantly
  • Create custom signatures
  • Add stamps and seals
  • Scan documents with camera
  • Handle paperwork digitally
  • Paperless workflow
Features
Read full description

Sign PDF Documents - SignX makes signing documents faster, easier, and more secure, right from your device. Whether you’re approving contracts, signing forms, or sending official papers, Sign PDF Documents - SignX lets you do it all in seconds. Get more done! Key Features: Sign Documents Instantly: Add your digital signature to PDFs and other documents with just a tap. Create Your Custom Signature: Personalize your signature for a professional touch every time. Add Stamps and Seals: Easily insert official stamps or company seals to make your documents stand out. Scan Documents in Seconds: Turn any paper document into a digital file using your camera — perfect for signing and sharing on the go. With Sign PDF Documents - SignX, you can handle all your paperwork digitally — anywhere, anytime. Save time, stay organized, and keep your workflow paperless. Download Sign PDF Documents - SignX today and experience the fastest way to sign, stamp, and send your documents. Privacy Policy: https://sites.google.com/view/signx-privacypolicy/home Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RS3 NFC Setup4 screens
Sign PDF Documents4 screens

Verdict

The call

The clearest difference is rating: Sign PDF Documents at 4.3 against RS3 NFC Setup's 1.0. Sign PDF Documents also leads on update cadence (every 3 days vs every 5 months) and iOS requirement (13.0 vs 15.6). RS3 NFC Setup's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sign PDF Documents sells 2 in-app purchases, starting at $7.99 per 7 days. RS3 NFC Setup asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sign PDF Documents holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

RS3 NFC Setup ships an update every 5 months, Sign PDF Documents every 3 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 4 level
RS3 NFC Setup versus Sign PDF Documents: the parameters behind the verdict, then further details
ParameterRS3 NFC SetupSign PDF Documents
PriceFreeFree
Rating1.0 (2 ratings)4.3 (3 ratings) — better
Number of ratings23 — better
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size9 MB56 MB
Age rating4+4+
DeveloperSerialio Ltd.Imad Khan

Customer experience

RS3 NFC Setup

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Sign PDF Documents

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

RS3 NFC Setup

No in-app purchases

2 purchases

Sign PDF Documents

Subscriptions2
  • Weekly Premium3 Days trial$7.997 Days
  • Yearly Premium$24.991 Year

Questions

Is RS3 NFC Setup free?
RS3 NFC Setup is free to download, with no in-app purchases.
Is Sign PDF Documents free?
Sign PDF Documents is free to download, with in-app purchases available.
Which has better reviews, RS3 NFC Setup or Sign PDF Documents?
Sign PDF Documents is rated higher. RS3 NFC Setup averages 1.0 out of 5 from 2 ratings, while Sign PDF Documents averages 4.3 from 3 ratings.
Do RS3 NFC Setup or Sign PDF Documents have ads?
Neither RS3 NFC Setup nor Sign PDF Documents shows ads.
Which is updated more often, RS3 NFC Setup or Sign PDF Documents?
RS3 NFC Setup ships an update every 5 months, and Sign PDF Documents every 3 days. Most recently, RS3 NFC Setup was updated on November 2, 2026 and Sign PDF Documents on November 5, 2026.

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