VibraPad vs Alfredo Backer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VibraPad
Learn the fundamentals of vibration analysis for machinery monitoring and diagnostics. Build virtual systems from a library of components, analyze sound signals via your device's microphone, and generate detailed reports. Optional external hardware enhances vibration data acquisition.
- Machine component library
- Drag-and-drop system assembly
- Sound signal acquisition via mic
- External accelerometer data support
- Live signal monitoring (time/frequency)
- Fundamental frequency calculator
- Report generation and email
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VibraPad is an educational App to teach the basics of vibration analysis for rotating machinery monitoring, diagnostics and maintenance. It contains a library of machines including motor, pump, fan, blower, gearbox, belt derive, and bearings. The user can easily construct a system by connecting the components from the library, define the specification for each part of the system, and see the fundamental frequencies of the system in details and also on the vibration signal spectrum. The App can acquire the vibration signal through an extra hardware that can be purchased separately. However, without the extra hardware, the user can still acquire the sound signal of the machine through the mic of the iPad and the signal will be shown in the time- and frequency-domain. The harmonics of the machine frequencies can be also shown on the frequency signal. Features: - A library of machine components: motor, pump, fan, blower, gearbox, bearings, and belt drive -easy touch and drag-based assembly of the system using the library components - acquiring the sound signal of the machine through the iPad built-in Mic - Capability of the external accelerometer data acquiring if purchased with the extra hardware (contact Motionics for more info) - Live monitoring of the acquired (sound or vibration) signal in time and frequency - Zoom option for the signal in time and frequency domains - Fundamental frequency calculator for all machine components in the library - Report generation for all the machine components with fundamental frequencies - Report E-mail option - Automatic higher peak finder for the frequency signal ******** Note *********** The App requires external hardware to operate, please contact us for more information
Alfredo Backer
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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
Verdict
The clearest difference is price: Alfredo Backer at Free against VibraPad's $119.99. VibraPad's advantage is iOS requirement (9.0 vs 16.0). On update cadence, 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
Alfredo Backer is free to download; VibraPad costs $119.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VibraPad ships an update every 4 months, Alfredo Backer every 8 months. The most recent releases landed on June 5, 2026 and September 18, 2026 respectively.
| Parameter | VibraPad | Alfredo Backer |
|---|---|---|
| Price | $119.99 | Free — better |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Motionics, LLC | Externato Alfredo Backer Ltda |
In-app purchases
VibraPad
No in-app purchases
Alfredo Backer
No in-app purchases
Questions
Is VibraPad free?
Is Alfredo Backer free?
Do VibraPad or Alfredo Backer have ads?
Which is updated more often, VibraPad or Alfredo Backer?
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