# Smart Schedule Planner vs AtomCalendar

The clearest difference is in-app purchases: Smart Schedule Planner at none against AtomCalendar's 5. AtomCalendar's advantage is iOS requirement (15.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AtomCalendar sells 5 in-app purchases, starting at $3.99 per month. Smart Schedule Planner asks for nothing beyond the download.

Smart Schedule Planner ships an update every 10 days, AtomCalendar weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Smart Schedule Planner | AtomCalendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Size | 10 MB | 92 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Prince Boateng](https://appshunter.io/developer/1886775119) | [Aotter Inc.](https://appshunter.io/developer/597484493) |

## What reviewers say

### Smart Schedule Planner

[App page](https://appshunter.io/ios/app/smart-schedule-planner/id6786545258)

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

**In-app purchases:** none


### AtomCalendar

[App page](https://appshunter.io/ios/app/atomcalendar-lucky-planner/id6805333475)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 進階方案月繳 | $3.99 | per month |
| 進階方案年繳 | $39.99 | per year |
| 100 點原子點數 | $2.99 | one-time |
| 300 點原子點數 | $9.99 | one-time |
| 1,000 點原子點數 | $29.99 | one-time |


## Frequently asked questions

### Is Smart Schedule Planner free?

Smart Schedule Planner is free to download, with no in-app purchases.

### Is AtomCalendar free?

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

### Do Smart Schedule Planner or AtomCalendar have ads?

Neither Smart Schedule Planner nor AtomCalendar shows ads.

### Which is updated more often, Smart Schedule Planner or AtomCalendar?

Smart Schedule Planner ships an update every 10 days, and AtomCalendar weekly. Most recently, Smart Schedule Planner was updated on October 25, 2026 and AtomCalendar on October 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.*