# phyphox vs イベント業務管理士2級対策 500問

The clearest difference is price: phyphox at Free against イベント業務管理士2級対策 500問's $3.99. phyphox also leads on iOS requirement (12.0 vs 15.1). イベント業務管理士2級対策 500問's advantage is update cadence (every 2 weeks vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

phyphox is free to download; イベント業務管理士2級対策 500問 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

phyphox ships an update every 3 months, イベント業務管理士2級対策 500問 every 2 weeks. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | phyphox | イベント業務管理士2級対策 500問 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.6 (276 ratings)](https://appshunter.io/ios/app/phyphox/id1127319693/reviews)** | — |
| Number of ratings | **276** | — |
| Positive reviews | 78.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 34 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RWTH Aachen University](https://appshunter.io/developer/371466796) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### phyphox

[App page](https://appshunter.io/ios/app/phyphox/id1127319693)

Unlock your phone's sensors for scientific exploration. Conduct pre-built experiments or create your own using accelerometers, magnetometers, and more. Analyze and export data in various formats for further study.

**Highlights:** Pre-defined experiments, Data export (CSV, TSV, Excel), Web-based remote control, Custom experiment editor, Access to phone sensors, Advanced analysis functions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Access to phone sensors
- 🔬 Useful for physics experiments
- 📊 Data logging and export
- 🆓 Free and no ads
- 🤔 Sparks curiosity

**What reviewers complain about**

- 🐛 Bugs and crashes
- 📉 Inconsistent performance
- 🔒 App locks/minimizes recording
- ❓ Units not always clear
- ⚠️ Potential for device damage

**Reported bugs**

- App crashes on older devices
- Barometer not working on iOS 17.4
- Network error: Generic error
- Sound measurement curve disappears
- App crashes frequently

**Requested features**

- Add infrasound detector
- More units of measurement (G-force, PSI, feet)
- NFC/RFID support
- In-app bug report feature
- Allow other sensors via USB-C


### イベント業務管理士2級対策 500問

[App page](https://appshunter.io/ios/app/2-500/id6789417159)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is phyphox free?

phyphox is free to download, with no in-app purchases.

### Is イベント業務管理士2級対策 500問 free?

イベント業務管理士2級対策 500問 costs $3.99, with no in-app purchases.

### Do phyphox or イベント業務管理士2級対策 500問 have ads?

Neither phyphox nor イベント業務管理士2級対策 500問 shows ads.

### Which is updated more often, phyphox or イベント業務管理士2級対策 500問?

phyphox ships an update every 3 months, and イベント業務管理士2級対策 500問 every 2 weeks. Most recently, phyphox was updated on October 20, 2026 and イベント業務管理士2級対策 500問 on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*