# Vibrating Alarm Clock & Timer vs BDC

The clearest difference is in-app purchases: BDC at none against Vibrating Alarm Clock & Timer's 4. BDC also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). Vibrating Alarm Clock & Timer's advantage is update cadence (every 5 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Vibrating Alarm Clock & Timer sells 4 one-off in-app purchases. BDC asks for nothing beyond the download.

Vibrating Alarm Clock & Timer ships an update every 5 weeks, BDC every 4 months. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Vibrating Alarm Clock & Timer | BDC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (104 ratings)](https://appshunter.io/ios/app/vibrating-alarm-clock-and-timer/id1659194791/reviews)** | — |
| Number of ratings | **104** | — |
| Positive reviews | 64.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 185 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [manabu ueda](https://appshunter.io/developer/1606163236) | [MILESEUM INC.](https://appshunter.io/developer/1736446436) |

## What reviewers say

### Vibrating Alarm Clock & Timer

[App page](https://appshunter.io/ios/app/vibrating-alarm-clock-and-timer/id1659194791)

This app provides silent alerts using vibration for alarms and timers. It functions similarly to the native clock app, allowing for custom alarms and timers that continue running in the background. Enhance your experience with theme customization and ad removal through in-app purchases.

**Highlights:** Vibration-only alerts, Unlimited free alarm storage, Repeat alarms by day, Second-level timer precision, Background timer operation, Dark mode support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the app #1 | $0.49 | one-time |
| Support the app #2 | $0.99 | one-time |
| Support the app #3 | $1.99 | one-time |
| Ad-Free Plan(Lifetime) | $2.99 | one-time |


### BDC

[App page](https://appshunter.io/ios/app/bdc/id6479596132)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vibrating Alarm Clock & Timer free?

Vibrating Alarm Clock & Timer is free to download, with in-app purchases available.

### Is BDC free?

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

### Do Vibrating Alarm Clock & Timer or BDC have ads?

Vibrating Alarm Clock & Timer shows ads; BDC does not.

### Which is updated more often, Vibrating Alarm Clock & Timer or BDC?

Vibrating Alarm Clock & Timer ships an update every 5 weeks, and BDC every 4 months. Most recently, Vibrating Alarm Clock & Timer was updated on October 15, 2026 and BDC on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*