NFC Read Write vs Light Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NFC Read Write
Easily read and write NFC tags using your iPhone's built-in NFC capabilities. Securely lock tags with passwords and create encrypted records for seamless WiFi sharing or data storage. Supports a wide range of NDEF and RAW data formats.
- Read and write NFC tags
- Lock NFC tags with passwords
- Write secure encrypted NFConnect records
- Write un-encrypted NFConnect records to any NDEF tag
- Store URL, text, phone, SMS, GEO, email, business cards
- Write RAW data
- Supports various NFC tag types
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Read and Write NFC tags and inlays with iPhone built-in NFC. Lock NFC tags, and protect NFC tags with passwords (When supported by NFC tag type) 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
Light Meter
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Stop guessing where your plants will thrive. Point your camera at any spot to instantly read the brightness in real lux and foot-candles, then see exactly which houseplants belong there. KEY FEATURES • Instant readings — measure any windowsill, shelf or corner in lux and foot-candles • Match 12 popular houseplants against your exact light, from low-light pothos to sun-loving succulents • Save spots room by room and compare which window is brightest • Track how a spot brightens and fades across the day • Clear light categories: Low, Medium, Bright Indirect and Direct Sun • Works fully offline — no account, no ads, your data stays on your device HOW IT WORKS 1. Point your camera at the spot where a plant will live 2. Read the brightness instantly in lux and foot-candles 3. See matching plants and save the spot to a room FULL ACCESS Unlimited saved spots, room-by-room comparison and every plant match are unlocked with full access, available weekly, yearly or as a one-time lifetime purchase. Give every plant the light it deserves — download today. — LEGAL — Terms of Use: https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Support: tphuc.work@gmail.com
Screenshots
Verdict
The clearest difference is update cadence: Light Meter at every 2 months against NFC Read Write's every 6 months. On price, ads, in-app purchases 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
Both are free to download. NFC Read Write sells 4 one-off in-app purchases and Light Meter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
NFC Read Write ships an update every 6 months, Light Meter every 2 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | NFC Read Write | Light Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Serialio Ltd. | Phuc Pham |
In-app purchases
NFC Read Write
- Scanning more tags$9.99
- Unlock SmartPoster writing$24.99
- NDEF Text language$24.99
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- MQTT Support$199.99
Light Meter
- Lifetime Pro$29.99









