# ATOM vs Petelle

The clearest difference is in-app purchases: Petelle at none against ATOM's 19. ATOM's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ATOM sells 19 in-app purchases, starting at $0.99 per month. Petelle asks for nothing beyond the download.

ATOM ships an update every 2 months, Petelle monthly. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ATOM | Petelle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/atom/id1501313647/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 4.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 254 MB | 66 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ATOM tech Inc.](https://appshunter.io/developer/1487907066) | [Yuuya Miyamoto](https://appshunter.io/developer/1889103471) |

## What reviewers say

### ATOM

[App page](https://appshunter.io/ios/app/atom/id1501313647)

Control and manage your ATOM series smart devices from a single application. This app allows for centralized operation and management of various smart home products.

**Highlights:** Control ATOM series smart devices, Manage smart devices, Centralized operation, Single application interface

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

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ViewSay Lite · 月額 · 1台 | $0.99 | per month |
| ViewSay Lite · 月額 · 2台 | $1.99 | per month |
| モーション検知録画（Lite） · 月額 · 1台 | $1.99 | per month |
| モーション検知録画（Lite） · 月額 · 2台 | $2.99 | per month |
| ViewSay Lite · 月額 · 4台 | $3.99 | per month |
| モ一ション検知無制限録画（14日）（1台） | $3.99 | per month |
| ViewSay Lite · 月額 · 5台 | $5.99 | per month |
| ViewSay Lite · 月額 · 6台 | $6.99 | per month |
| ViewSay Lite · 月額 · 7台 | $7.99 | per month |
| モ一ション検知無制限録画（14日）（2台） | $7.99 | per month |
| ViewSay Lite · 月額 · 8台 | $8.99 | per month |
| モ一ション検知無制限録画（14日）（3台） | $11.99 | per month |
| モ一ション検知無制限録画（14日）（4台） | $14.99 | per month |
| モ一ション検知無制限録画（14日）（5台） | $19.99 | per month |
| モ一ション検知無制限録画（14日）（6台） | $24.99 | per month |
| モ一ション検知無制限録画（14日）（8台） | $29.99 | per month |
| モ一ション検知無制限録画（14日）（7台） | $29.99 | per month |
| モ一ション検知無制限録画（14日）（10台） | $39.99 | per month |
| モ一ション検知無制限録画（14日）（9台） | $39.99 | per month |


### Petelle

[App page](https://appshunter.io/ios/app/petelle/id6761358071)

**In-app purchases:** none


## Frequently asked questions

### Is ATOM free?

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

### Is Petelle free?

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

### Do ATOM or Petelle have ads?

Petelle shows ads; ATOM does not.

### Which is updated more often, ATOM or Petelle?

ATOM ships an update every 2 months, and Petelle monthly. Most recently, ATOM was updated on October 19, 2026 and Petelle on October 2, 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.*