# Shift Calendar Planner vs SisBom

The clearest difference is in-app purchases: SisBom at none against Shift Calendar Planner's 5. SisBom also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Shift Calendar Planner sells 4 in-app purchases, starting at $1.99 per month. SisBom asks for nothing beyond the download.

Shift Calendar Planner ships an update every 3 weeks, SisBom every 10 days. The most recent releases landed on September 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Shift Calendar Planner | SisBom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (27 ratings)](https://appshunter.io/ios/app/shift-calendar-planner/id6472920612/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Freemium | — |
| Size | 61 MB | 37 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bivis](https://appshunter.io/developer/1124507805) | [W27 Solucoes Ltda](https://appshunter.io/developer/1744973639) |

## What reviewers say

### Shift Calendar Planner

[App page](https://appshunter.io/ios/app/shift-calendar-planner/id6472920612)

Manage your work shifts, personal events, and time off with this intuitive calendar app. Track earnings, create payout reports, and receive schedule conflict alerts. Designed for professionals working rotating schedules.

**Highlights:** Automatic shift schedules, Earnings tracking, Payout reports, Time-off planning, Calendar synchronization, Home screen widgets, Cloud backup

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shift Calendar Monthly | $1.99 | per month |
| Shift Calendar Monthly | $2.99 | per month |
| Shift Calendar Annual | $15.99 | per year |
| Lifetime | $34.99 | one-time |


### SisBom

[App page](https://appshunter.io/ios/app/sisbom/id6760206222)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shift Calendar Planner free?

Shift Calendar Planner is free to download, with in-app purchases available.

### Is SisBom free?

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

### Do Shift Calendar Planner or SisBom have ads?

Neither Shift Calendar Planner nor SisBom shows ads.

### Which is updated more often, Shift Calendar Planner or SisBom?

Shift Calendar Planner ships an update every 3 weeks, and SisBom every 10 days. Most recently, Shift Calendar Planner was updated on September 26, 2026 and SisBom on September 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.*