# e Sono Phone Probe vs PoCUS Pocket Trainer

The clearest difference is in-app purchases: e Sono Phone Probe at none against PoCUS Pocket Trainer's 3. PoCUS Pocket Trainer's advantage is update cadence (every 2 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PoCUS Pocket Trainer sells 3 in-app purchases, starting at $4.99 per 7 days. e Sono Phone Probe asks for nothing beyond the download.

e Sono Phone Probe ships an update every 5 months, PoCUS Pocket Trainer every 2 days. The most recent releases landed on October 28, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | e Sono Phone Probe | PoCUS Pocket Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 days** |
| Size | 1 MB | 1.2 GB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [3B Scientific](https://appshunter.io/developer/1407867777) | [Eltjo Haselhoff](https://appshunter.io/developer/1126280156) |

## What reviewers say

### e Sono Phone Probe

[App page](https://appshunter.io/ios/app/e-sono-phone-probe/id6743545381)

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

**In-app purchases:** none


### PoCUS Pocket Trainer

[App page](https://appshunter.io/ios/app/pocus-pocket-trainer/id6748582437)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-week subscription | $4.99 | per 7 days |
| One-month subscription | $9.99 | per month |
| One-year subscription | $19.99 | per year |


## Frequently asked questions

### Is e Sono Phone Probe free?

e Sono Phone Probe is free to download, with no in-app purchases.

### Is PoCUS Pocket Trainer free?

PoCUS Pocket Trainer is free to download, with in-app purchases available.

### Do e Sono Phone Probe or PoCUS Pocket Trainer have ads?

Neither e Sono Phone Probe nor PoCUS Pocket Trainer shows ads.

### Which is updated more often, e Sono Phone Probe or PoCUS Pocket Trainer?

e Sono Phone Probe ships an update every 5 months, and PoCUS Pocket Trainer every 2 days. Most recently, e Sono Phone Probe was updated on October 28, 2026 and PoCUS Pocket Trainer on October 19, 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.*