Comparison

Magnetometer ∞ vs T

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

Head to head
About

Magnetometer ∞

Visualize magnetic fields in real-time with precision charts and monitor X, Y, Z axis readings. Ideal for scientific research, education, and field work, this app offers professional-grade accuracy and an intuitive interface for easy data interpretation.

Highlights
  • Real-time magnetic field visualization
  • X, Y, Z axis readings in microteslas
  • Scientific research tool
  • Educational aid
  • Field work companion
  • Intuitive interface
Read full description

Magnetometer Visualizer - Explore the invisible magnetic world - Visualize magnetic fields in real-time with precision charts - Monitor X, Y, Z axis readings in microteslas (µT) - Perfect for scientific research, education, and field work - Professional-grade accuracy for reliable measurements - Clean, intuitive interface for easy data interpretation Whether you're a researcher, student, or professional, unlock the power of magnetic field analysis with stunning real-time visualization. Privacy Policy: https://apps.fawkeswei.com/magnetometer/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

T

Features
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Point your camera at a Magic card and T-scan tells you which printing it is and what it is worth. It reads the set code at the bottom of the card, so it works in every language Magic is printed in — Japanese, Korean, Chinese, Russian, Spanish and the rest — and that part works with no connection at all. WHAT IT DOES • Recognises a card from the code at the bottom, offline, across 538,000 printings in 19 languages. • Shows the price of the exact printing you are holding, not an average. • When it cannot tell which printing you have, it says so and shows a range. It never invents a number. • Keeps your list on the phone: what you own, what you want. • Syncs with T-deck: the cards you scan land in your collection there, and cards you already own on T-deck show up in your list. Corrections you make on T-deck to a card you already have here do not come back yet. WHAT IT IS NOT No ads. No trackers. Nothing sold to anyone. T-scan reads prices from two markets. Card images and data come from Scryfall. T-scan is unofficial Fan Content permitted under the Wizards of the Coast Fan Content Policy, and is not approved or endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast LLC.

Screenshots

Magnetometer ∞2 screens
T4 screens

Verdict

The call

The clearest difference is in-app purchases: T at none against Magnetometer ∞'s 2. T also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, device support 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. Magnetometer ∞ sells 2 in-app purchases, starting at $1.99 per 7 days. T asks for nothing beyond the download.

UpkeepUpdate frequency

Magnetometer ∞ ships an update every 2 weeks, T every 5 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Magnetometer ∞ versus T: the parameters behind the verdict, then further details
ParameterMagnetometer ∞T
PriceFreeFree
Rating4.4 (59 ratings) — better—
Number of ratings59 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size16 MB2 MB
Age rating4+9+
DeveloperFawkes WeiMarco Brignoli

In-app purchases

2 purchases

Magnetometer ∞

Subscriptions1
  • Weekly$1.997 Days
One-time1
  • Lifetime$9.99
None

T

No in-app purchases

Questions

Is Magnetometer ∞ free?
Magnetometer ∞ is free to download, with in-app purchases available.
Is T free?
T is free to download, with no in-app purchases.
Do Magnetometer ∞ or T have ads?
Magnetometer ∞ shows ads; T does not.
Which is updated more often, Magnetometer ∞ or T?
Magnetometer ∞ ships an update every 2 weeks, and T every 5 days. Most recently, Magnetometer ∞ was updated on November 8, 2026 and T on October 31, 2026.

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