Comparison

NFC Read Write vs Sewio Finder

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

Head to head
About

NFC Read Write

Easily read and write NFC tags using your iPhone. Securely store encrypted records or unencrypted data like URLs, text, and contact information. Connect to Wi-Fi networks instantly without sharing passwords.

Highlights
  • Read and write NFC tags
  • Write encrypted NFConnect records
  • Write unencrypted NDEF data
  • Store URLs, text, phone numbers, and more
  • Join WiFi networks without passwords
  • Supports various NFC tag types
Read full description

Read and Write NFC tags and inlays with iPhone built-in NFC. Write secure encrypted NFConnect records using Serialio.com NFConnect tags or inlays. Don't have NFC NFConnect tags or inlays? No problem. Write NFConnect records (un-encrypted) to any NDEF tag with sufficient memory. For encrypted NFConnect records In-App-Purchase option enables to write encrypted NFConnect records to many tag types that support NDEF. Use tags and inlays with NFConnect records to join WiFi network without giving out your WiFi password. Now your visitors, friends, business associates, etc. can connect to your WiFi network without knowing your WiFi password. Writes NDEF (NFC Data Exchange Format) data to all the NFC tag types shown above: tags, badges, wristbands, keyfobs, cups, plates, PPE (personal protection equipment), etc. Store URL/URI, Plain TEXT, Phone number, SMS, GEO Location, Email, Application, Business Card, and more. Also write RAW data (not formatted like NDEF). Note: NDEF/RAW data can be used by apps like iScanBrowser, Cloud-In-Hand stratus-io Attendance, Mobile Grid, SerialMagic Keys. Contact serialio.com for more information and to purchase NFC-RFID tags, inlays, wireless readers, software applications Starting with iPhone-11 and iOS 13, iPhone built-in NFC supports reading and writing many types of NFC tags and inlays. Some example NFC tag types are ISO-14443A(*1,2,4) tags like NXP NTAG213, NTAG215, NTAG216, Mifare Classic EV1, Mifare Ultralight (aka Mifare UL), Mifare DESFire, Mifare Plus-SE, Mifare Plus-S, Mifare Plus-X, my-d move - SLE66R01P, FM11RF08, ISO-14443B(*4) tags like AT88RF020, SR176, SRIX512, SRIX4K, and Sony FeliCa(*4) tags, and ISO-15693 tags like ICODE SLI, SLI-X, SLI-X2, Tag-It HF-I Plus. *1 NFC Forum Tag Type 1 *2 NFC Forum Tag Type 2 *3 NFC Forum Tag Type 3 *4 NFC Forum Tag Type 4

About

Sewio Finder

Features
Read full description

This application as a part of myRTLS ecosystem, connects to your RTLS Studio instance and makes it possible to find the location of your Sewio Trackables.

Screenshots

NFC Read Write4 screens
Sewio Finder4 screens

Verdict

The call

The clearest difference is in-app purchases: Sewio Finder at none against NFC Read Write's 4. Sewio Finder also leads on update cadence (every 3 weeks vs every 4 months) and device support (3 vs 1). On price, ads and iOS requirement 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. NFC Read Write sells 4 one-off in-app purchases. Sewio Finder asks for nothing beyond the download.

UpkeepUpdate frequency

NFC Read Write ships an update every 4 months, Sewio Finder every 3 weeks. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
NFC Read Write versus Sewio Finder: the parameters behind the verdict, then further details
ParameterNFC Read WriteSewio Finder
PriceFreeFree
Rating4.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size5 MB34 MB
Age rating4+4+
DeveloperSerialio Ltd.Sewio Networks s.r.o.

In-app purchases

4 purchases

NFC Read Write

One-time4
  • Scanning more tags$9.99
  • Unlock SmartPoster writing$24.99
  • NDEF Text language$24.99
Show 1 more
  • MQTT Support$199.99
None

Sewio Finder

No in-app purchases

Questions

Is NFC Read Write free?
NFC Read Write is free to download, with in-app purchases available.
Is Sewio Finder free?
Sewio Finder is free to download, with no in-app purchases.
Do NFC Read Write or Sewio Finder have ads?
Neither NFC Read Write nor Sewio Finder shows ads.
Which is updated more often, NFC Read Write or Sewio Finder?
NFC Read Write ships an update every 4 months, and Sewio Finder every 3 weeks. Most recently, NFC Read Write was updated on October 17, 2026 and Sewio Finder on October 13, 2026.

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