# WhatCall vs Vessel Offset Measurement Tool

The clearest difference is in-app purchases: Vessel Offset Measurement Tool at none against WhatCall's 5. Vessel Offset Measurement Tool also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. WhatCall sells 5 one-off in-app purchases. Vessel Offset Measurement Tool asks for nothing beyond the download.

## The numbers

| Metric | WhatCall | Vessel Offset Measurement Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (601 ratings)](https://appshunter.io/ios/app/whatcall/id1260967308/reviews)** | — |
| Number of ratings | **601** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 5 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Innovative Developers LTD](https://appshunter.io/developer/947764447) | [Sarah Grasty](https://appshunter.io/developer/1721269945) |

## What reviewers say

### WhatCall

[App page](https://appshunter.io/ios/app/whatcall/id1260967308)

This app allows you to bypass ringing and connect directly to someone's voicemail. It provides an instant missed call notification, giving you an excuse to have tried calling while avoiding actual conversation. It works globally on most networks, including landlines and mobiles.

**Highlights:** Instant voicemail connection, Missed call notification, Global network compatibility, Automatic dial code detection, Bypass ringing, Leave messages without conversation

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 credit pack | $2.99 | one-time |
| 12 credit pack | $5.99 | one-time |
| 20 credit pack | $7.99 | one-time |
| 30 credit pack | $9.99 | one-time |
| 40 credit pack | $12.99 | one-time |

**What reviewers like**

- 🚀 Works well
- 👍 Great app
- 🚀 Convenient
- 🚀 Indispensable
- 👍 Accessible to customers

**What reviewers complain about**

- 🐛 Doesn't work
- 🐛 Calls go directly to person, not voicemail
- 🐛 Stuck on 'connecting' screen
- 🐛 Won't leave voicemail
- 🐛 Takes credits but doesn't work

**Reported bugs**

- Calls go directly to person, not voicemail
- Stuck on 'connecting' screen
- Won't leave voicemail
- Takes credits but doesn't work
- Verification issues

**Requested features**

- Option to display 'unknown' or 'unverified' number
- Prerecorded voicemail feature


### Vessel Offset Measurement Tool

[App page](https://appshunter.io/ios/app/vessel-offset-measurement-tool/id6474274524)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WhatCall free?

WhatCall is free to download, with in-app purchases available.

### Is Vessel Offset Measurement Tool free?

Vessel Offset Measurement Tool is free to download, with no in-app purchases.

### Do WhatCall or Vessel Offset Measurement Tool have ads?

Neither WhatCall nor Vessel Offset Measurement Tool shows ads.

---

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