# Nuj Alarm Clock vs rotblock

The clearest difference is in-app purchases: Nuj Alarm Clock at none against rotblock's 10. Nuj Alarm Clock also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.0). rotblock's advantage is update cadence (weekly vs every 2 months). On price and ads there is nothing between them.

Both are free to download. rotblock sells 10 one-off in-app purchases. Nuj Alarm Clock asks for nothing beyond the download.

Nuj Alarm Clock ships an update every 2 months, rotblock weekly. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Nuj Alarm Clock | rotblock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (88 ratings)](https://appshunter.io/ios/app/nuj-alarm-clock/id1557053396/reviews)** | — |
| Number of ratings | **88** | — |
| Positive reviews | 93.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Freemium | — |
| Size | 71 MB | 37 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Snowble Inc.](https://appshunter.io/developer/1489073554) | [WMB GmbH](https://appshunter.io/developer/1873048332) |

## What reviewers say

### Nuj Alarm Clock

[App page](https://appshunter.io/ios/app/nuj-alarm-clock/id1557053396)

This alarm clock uses financial penalties to motivate users to get out of bed. Set alarms, challenges like scanning barcodes, and a penalty amount. If you fail to complete the challenge by the set time, the penalty is charged, often donated to charity. It features cloud-based cheat detection to prevent bypassing the alarm.

**Highlights:** Financial motivation for waking up, Barcode scanning challenges, Cloud-based cheat detection, Customizable penalties, Charitable donation options, Prevents turning off the alarm

**In-app purchases:** none

**What reviewers like**

- 💪 Impossible to cheat or bypass the alarm system
- 💰 Financial penalty is highly motivating
- 🎯 Effectively breaks snooze addiction
- 🔒 Cloud-based system prevents workarounds
- ⏰ Locks alarm one hour before to prevent tampering

**What reviewers complain about**

- 💳 $5/month subscription required for full functionality
- 💸 Subscription cost not clearly disclosed upfront
- 😤 Strict penalty policy with limited refund flexibility
- ⚙️ Setup requires additional shortcut configuration
- 🚫 Limited charity options available

**Reported bugs**

- Scanner fails to open despite app being active
- App freezes during barcode scanning process
- Alarm setup is confusing and unintuitive
- Shortcut configuration issues on some devices
- Deactivation process problematic when deleting app

**Requested features**

- Puzzle or math problems to ensure mental alertness
- More charity options for penalty donations
- Yearly subscription discount pricing
- Additional physical activity verification methods
- Customizable alarm sounds beyond shortcuts


### rotblock

[App page](https://appshunter.io/ios/app/rotblock-unlock-your-brain/id6820204035)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heart | $0.99 | one-time |
| Lightning | $0.99 | one-time |
| Lab coat | $1.99 | one-time |
| Owl | $2.99 | one-time |
| Dragon | $2.99 | one-time |
| Dog | $2.99 | one-time |
| Axolotl | $2.99 | one-time |
| Robot | $2.99 | one-time |
| Starter pack | $3.99 | one-time |
| All pets | $8.99 | one-time |


## Frequently asked questions

### Is Nuj Alarm Clock free?

Nuj Alarm Clock is free to download, with no in-app purchases.

### Is rotblock free?

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

### Do Nuj Alarm Clock or rotblock have ads?

Neither Nuj Alarm Clock nor rotblock shows ads.

### Which is updated more often, Nuj Alarm Clock or rotblock?

Nuj Alarm Clock ships an update every 2 months, and rotblock weekly. Most recently, Nuj Alarm Clock was updated on November 11, 2026 and rotblock on November 6, 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.*