# Shabbat Alarm Clock vs JupiTerp

The clearest difference is in-app purchases: JupiTerp at none against Shabbat Alarm Clock's 4. JupiTerp also leads on ads (none vs shown) and rating (5.0 vs 4.8). Shabbat Alarm Clock's advantage is update cadence (every 4 days vs every 3 months) and ratings volume (473 vs 1). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Shabbat Alarm Clock sells 4 one-off in-app purchases. JupiTerp asks for nothing beyond the download.

JupiTerp holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Shabbat Alarm Clock has 473 ratings behind it against 1, so its average is the more settled of the two.

Shabbat Alarm Clock ships an update every 4 days, JupiTerp every 3 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Shabbat Alarm Clock | JupiTerp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (473 ratings)](https://appshunter.io/ios/app/shabbat-alarm-clock/id1485334479/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jupiterp/id6772866548/reviews)** |
| Number of ratings | **473** | 1 |
| Positive reviews | 90.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 162 MB | 44 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Gerber](https://appshunter.io/developer/1485334478) | [Justin Fournier](https://appshunter.io/developer/1747399728) |

## What reviewers say

### Shabbat Alarm Clock

[App page](https://appshunter.io/ios/app/shabbat-alarm-clock/id1485334479)

Schedule alarms to wake up for services and avoid missing shul. Customize ringtones with your own recordings or select from various sounds. Test notifications to ensure proper setup.

**Highlights:** Schedule alarms for Shabbat and Yom Tov, Record custom ringtones, Choose from various sound options, Test notification functionality, Repeat alarms (paid feature), Ad removal (paid feature)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Developer | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Enable Repeating Alarms | $2.99 | one-time |
| Remove Ads + Repeating Alarms | $4.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Reliable and dependable
- 🕰️ Helpful for Shabbat/holiday observance
- 💡 Unique features like record-your-own alarm
- 🕰️ Automatically turns off alarm after set time

**What reviewers complain about**

- 🐛 New update has poor interface and usability
- 🤖 Ads and in-app purchases
- 🔇 Alarms can be too quiet for some users

**Reported bugs**

- Alarms ringing without any set
- App not working at all for some users

**Requested features**

- Recurring/weekly alarm scheduling
- Ability to bypass silent mode
- More alarm sound options
- Improved visual design


### JupiTerp

[App page](https://appshunter.io/ios/app/jupiterp/id6772866548)

This app helps University of Maryland students plan their course schedules efficiently. It allows searching the full course catalog, filtering by various criteria, and visualizing the weekly schedule on a grid. Schedules can be saved and exported to a calendar.

**Highlights:** Search full UMD course catalog, Filter by department, GenEd, professor, View PlanetTerp/RateMyProfessors ratings, Live seat availability, Visual weekly schedule grid, Automatic time conflict detection, Export schedule to calendar

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

**In-app purchases:** none


## Frequently asked questions

### Is Shabbat Alarm Clock free?

Shabbat Alarm Clock is free to download, with in-app purchases available.

### Is JupiTerp free?

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

### Which has better reviews, Shabbat Alarm Clock or JupiTerp?

JupiTerp is rated higher. Shabbat Alarm Clock averages 4.8 out of 5 from 473 ratings, while JupiTerp averages 5.0 from 1 ratings.

### Do Shabbat Alarm Clock or JupiTerp have ads?

Shabbat Alarm Clock shows ads; JupiTerp does not.

### Which is updated more often, Shabbat Alarm Clock or JupiTerp?

Shabbat Alarm Clock ships an update every 4 days, and JupiTerp every 3 months. Most recently, Shabbat Alarm Clock was updated on November 3, 2026 and JupiTerp on October 31, 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.*