Comparison

IamThermowatt vs OKTap

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

Head to head
About

IamThermowatt

Features
Read full description

IamThermowatt allows you to find out if the thermostats and the heating elements are original, just holding your smartphone on the NFC logo printed on the carton box. NFC is a microchip device and the most innovative technological solution that replaces other easily reproducible solutions such as QR-codes or holograms. The unique β€œembedded” NFC tags are applied directly on the boxes, equipped with a serial number (which cannot be reproduced and cannot be falsified) and can be easily read by wholesalers and by their retailers through smartphone where IamThermowatt is installed. Fight the counterfeiting with Thermowatt!

About

OKTap

Create NFC cards that perform specific iOS actions with a single tap. Share contact details, Wi-Fi access, or open websites. Designed for simplicity and user control, it requires no background scanning or tracking.

Highlights
  • Create NFC cards for actions
  • Share contact details
  • Offer Wi-Fi access
  • Open websites or links
  • User-initiated taps
  • One action per card
  • No background scanning
Read full description

Tap once. Do one thing. OkTap is a simple utility for creating NFC cards that trigger familiar iOS actions with a single tap. Use OkTap to program NFC cards for: β€’ Sharing your contact details β€’ Offering Wi-Fi access β€’ Opening a website or link How it works 1. Choose what you want the card to do 2. Tap your iPhone to an NFC card 3. The card is ready β€” no app required to use it Each card contains one predefined action and works using standard iOS system behavior. When someone taps the card, their device handles the action just like it would any normal NFC interaction. Designed for clarity and control β€’ User-initiated taps only β€’ One action per card β€’ No background scanning β€’ No tracking or analytics OkTap doesn’t automate your device β€” it simply helps you set up NFC cards that work the way iOS already expects them to. A small tool. A clear action. No surprises. NFC writing requires a compatible iPhone.

Screenshots

IamThermowatt3 screens
OKTap4 screens

Verdict

The call

The clearest difference is in-app purchases: IamThermowatt at none against OKTap's 1. IamThermowatt also leads on iOS requirement (15.0 vs 17.0). OKTap's advantage is update cadence (every 5 months vs every 15 months). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. OKTap sells 1 one-off in-app purchase. IamThermowatt asks for nothing beyond the download.

UpkeepUpdate frequency

IamThermowatt ships an update every 15 months, OKTap every 5 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard3 real differences Β· 5 level
IamThermowatt versus OKTap: the parameters behind the verdict, then further details
ParameterIamThermowattOKTap
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 15 monthsEvery 5 months β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
Monetizationβ€”Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 β€” better17.0
Further details β€” not scored
Size68 MB4 MB
Age rating4+4+
DeveloperThermowatt SpAEDUCACION GLOBAL, INC

In-app purchases

None

IamThermowatt

No in-app purchases

1 purchases

OKTap

One-time1
  • Creator Pack$3.99

Questions

Is IamThermowatt free?
IamThermowatt is free to download, with no in-app purchases.
Is OKTap free?
OKTap is free to download, with in-app purchases available.
Do IamThermowatt or OKTap have ads?
Neither IamThermowatt nor OKTap shows ads.
Which is updated more often, IamThermowatt or OKTap?
IamThermowatt ships an update every 15 months, and OKTap every 5 months. Most recently, IamThermowatt was updated on October 27, 2026 and OKTap on October 28, 2026.

Other comparisons