# Monarch Bell Schedule vs Undecuple Calc

The clearest difference is in-app purchases: Undecuple Calc at none against Monarch Bell Schedule's 1. Undecuple Calc also leads on update cadence (every 2 weeks vs every 2 months). Monarch Bell Schedule's advantage is ads (none vs shown) and iOS requirement (11.0 vs 15.8.3). On price and device support there is nothing between them.

Both are free to download. Monarch Bell Schedule sells 1 one-off in-app purchase. Undecuple Calc asks for nothing beyond the download.

Monarch Bell Schedule ships an update every 2 months, Undecuple Calc every 2 weeks. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Monarch Bell Schedule | Undecuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (47 ratings)](https://appshunter.io/ios/app/monarch-bell-schedule/id1448130735/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 51 MB | 36 MB |
| Requires iOS | **11.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jonathon Cihlar](https://appshunter.io/developer/1698848904) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Monarch Bell Schedule

[App page](https://appshunter.io/ios/app/monarch-bell-schedule/id1448130735)

Track your class schedule with this utility app. Customize period names and lunch periods to match your school day. It highlights the current class and can handle special schedules like assemblies.

**Highlights:** Customizable period names, Lunch period selection, Highlights current class, Handles assembly schedules, Supports schedule anomalies

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monarch Bell Schedule Gold | Free | one-time |


### Undecuple Calc

[App page](https://appshunter.io/ios/app/undecuple-calc/id6742340933)

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

**In-app purchases:** none


## Frequently asked questions

### Is Monarch Bell Schedule free?

Monarch Bell Schedule is free to download, with in-app purchases available.

### Is Undecuple Calc free?

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

### Do Monarch Bell Schedule or Undecuple Calc have ads?

Undecuple Calc shows ads; Monarch Bell Schedule does not.

### Which is updated more often, Monarch Bell Schedule or Undecuple Calc?

Monarch Bell Schedule ships an update every 2 months, and Undecuple Calc every 2 weeks. Most recently, Monarch Bell Schedule was updated on October 12, 2026 and Undecuple Calc on October 5, 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.*