Comparison

Physics Toolbox Magnetometer vs Alfredo Backer

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

Head to head
About

Physics Toolbox Magnetometer

This app transforms your iPhone into a precise scientific instrument for measuring, visualizing, and recording magnetic fields. Explore magnetic field vectors, magnitudes, and compass headings with real-time charts and digital readouts. Ideal for educational experiments, lab work, or curious exploration.

Highlights
  • Real-time magnetic field vector and magnitude display
  • Chart, digital, and compass viewing modes
  • Data recording and CSV export
  • Adjustable sample rate (1-100 Hz)
  • Signal filters for noise reduction
  • Detection of permanent and electromagnetic fields
Features
Read full description

Measure, visualize, and record magnetic fields with precision — right from your iPhone. Physics Toolbox Magnetometer displays the magnetic field vector in x, y, and z dimensions along with total magnitude in microteslas (µT) or gauss, giving you the data you need for serious lab work or casual exploration. Three ways to view your data: - Chart — real-time graph with toggleable axes, adjustable line width, and fullscreen mode - Digital — large numeric readout for quick at-a-glance measurements - Compass — live heading with True North and Magnetic North display Built for the lab and the field: - Record and export data as CSV for analysis in other software - Adjustable sample rate from 1 to 100 Hz - Signal filters to reduce noise - Detects permanent magnets, electromagnetic fields, and background geomagnetic field Classroom-ready experiments: The magnetometer is well-suited for determining the inverse-square law for a point-source magnet, measuring the magnetic field produced by a solenoid, or capturing the periodic field variations of audio speakers and magnetic plate stirrers. Whether you are a physics student, teacher, engineer, or curious mind, Physics Toolbox Magnetometer turns your device into a capable scientific instrument.

About

Alfredo Backer

Features
Read full description

Este é o aplicativo do Externato Alfredo Backer Desenvolvido para apresentar aos alunos, pais e responsáveis diversas funcionalidades, tais como: • As avaliações e faltas do ano ou semestre atual e passados, com envio de notificações e push quando as avaliações forem liberadas ou alteradas pela Instituição ou pelo professor. • Consulta financeira das parcelas atuais e vencidas, com a possibilidade de cópia da linha digitável para pagamento do boleto no aplicativo do banco de sua preferência. • Consulta do horário, sala e professor das disciplinas matriculadas, com possibilidade de adicionar lembrete do dia da aula. Envio de notificação caso tenha alteração de horário e sala. • Consulta Pedagógica com a possibilidade de filtrar por período da ocorrência. Envio de notificação no caso de nova informação pedagógica (ocorrências). • Consulta de Eventos com a possibilidade de adicionar lembretes de eventos futuros.

Screenshots

Physics Toolbox Magnetometer4 screens
Alfredo Backer4 screens

Verdict

The call

The clearest difference is in-app purchases: Alfredo Backer at none against Physics Toolbox Magnetometer's 1. On price, update cadence, 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. Physics Toolbox Magnetometer sells 1 one-off in-app purchase. Alfredo Backer asks for nothing beyond the download.

UpkeepUpdate frequency

Physics Toolbox Magnetometer ships an update every 13 months, Alfredo Backer every 8 months. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 9 level
Physics Toolbox Magnetometer versus Alfredo Backer: the parameters behind the verdict, then further details
ParameterPhysics Toolbox MagnetometerAlfredo Backer
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 13 monthsEvery 8 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.116.0 — better
Further details — not scored
Size17 MB55 MB
Age rating4+4+
DeveloperChrystian VieyraExternato Alfredo Backer Ltda

In-app purchases

1 purchases

Physics Toolbox Magnetometer

One-time1
  • Pro Upgrade$2.99
None

Alfredo Backer

No in-app purchases

Questions

Is Physics Toolbox Magnetometer free?
Physics Toolbox Magnetometer is free to download, with in-app purchases available.
Is Alfredo Backer free?
Alfredo Backer is free to download, with no in-app purchases.
Do Physics Toolbox Magnetometer or Alfredo Backer have ads?
Neither Physics Toolbox Magnetometer nor Alfredo Backer shows ads.
Which is updated more often, Physics Toolbox Magnetometer or Alfredo Backer?
Physics Toolbox Magnetometer ships an update every 13 months, and Alfredo Backer every 8 months. Most recently, Physics Toolbox Magnetometer was updated on September 23, 2026 and Alfredo Backer on September 18, 2026.

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