# AtomCall vs WattCall

The clearest difference is review sentiment: AtomCall at 82% against WattCall's 9%. AtomCall also leads on rating (4.3 vs 3.0) and in-app purchases (none vs 11). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WattCall sells 11 in-app purchases, starting at $4.99 per month. AtomCall asks for nothing beyond the download.

AtomCall holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: AtomCall has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of AtomCall's written reviews are positive against 9% of WattCall's.

AtomCall ships an update every 4 weeks, WattCall every 2 weeks. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | AtomCall | WattCall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (12 ratings)](https://appshunter.io/ios/app/atomcall/id1387386095/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/wattcall-global-calling/id6503596008/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | **81.8% of reviews** | 9.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 173 MB | 107 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [The Angel Organisation Ltd](https://appshunter.io/developer/1122556668) | [JUSI PTE.LTD.](https://appshunter.io/developer/1659814629) |

## What reviewers say

### AtomCall

[App page](https://appshunter.io/ios/app/atomcall/id1387386095)

This messenger app offers free, high-quality voice and video calls with minimal bandwidth usage. It allows users to connect with anyone globally, even those not on the app, at low rates and supports emergency calls.

**Highlights:** Free voice and video calls, Low bandwidth usage, Direct calling to any number, Low-cost international calls, Emergency call support, Data saving mode

**Features:** macOS Compatibility

**In-app purchases:** none


### WattCall

[App page](https://appshunter.io/ios/app/wattcall-global-calling/id6503596008)

Make international calls over Wi-Fi or cellular data without using your cell minutes. Enjoy clear, stable voice quality and features like call recording and conference calls. Reach over 230 countries and regions with this ad-free calling solution.

**Highlights:** International calls to 230+ countries, Ad-free calling experience, Clear and stable voice quality, Call recording functionality, Up to 8-way conference calls, Uses internet calls (VoIP)

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duo Voice Pro Monthly Premium | $4.99 | per month |
| Credits of $0.99 | $0.99 | one-time |
| Duo Voice Pro Credits 16500 | $0.99 | one-time |
| Duo Voice Pro Credits 13500 | $0.99 | one-time |
| Credits of $1.99 | $1.99 | one-time |
| Duo Voice Pro Credits 27000 | $1.99 | one-time |
| Credit of $4.99 | $4.99 | one-time |
| Duo Voice Pro Credits 67500 | $4.99 | one-time |
| Credits of $9.99 | $9.99 | one-time |
| Duo Voice Pro Credits 135000 | $9.99 | one-time |
| Duo Voice Pro Credits 300000 | $19.99 | one-time |


## Frequently asked questions

### Is AtomCall free?

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

### Is WattCall free?

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

### Which has better reviews, AtomCall or WattCall?

AtomCall is rated higher. AtomCall averages 4.3 out of 5 from 12 ratings, while WattCall averages 3.0 from 2 ratings.

### Do AtomCall or WattCall have ads?

Neither AtomCall nor WattCall shows ads.

### Which is updated more often, AtomCall or WattCall?

AtomCall ships an update every 4 weeks, and WattCall every 2 weeks. Most recently, AtomCall was updated on September 18, 2026 and WattCall on September 24, 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.*