# Loud Alarm Clock by BLITZ vs Flight parameters

The clearest difference is price: Loud Alarm Clock by BLITZ at Free against Flight parameters's $2.99. Loud Alarm Clock by BLITZ also leads on update cadence (every 8 days vs every 3 weeks). Flight parameters's advantage is in-app purchases (none vs 17) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Loud Alarm Clock by BLITZ is free to download; Flight parameters costs $2.99 up front. Loud Alarm Clock by BLITZ sells 17 in-app purchases, starting at $0.99 per 7 days. Flight parameters asks for nothing beyond the download.

Loud Alarm Clock by BLITZ ships an update every 8 days, Flight parameters every 3 weeks. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Loud Alarm Clock by BLITZ | Flight parameters |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.5 (1.7K ratings)](https://appshunter.io/ios/app/loud-alarm-clock-by-blitz/id1418149747/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 1 MB |
| Requires iOS | 15.6 | **15.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Infinite Wave Media, LLC](https://appshunter.io/developer/495187294) | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) |

## What reviewers say

### Loud Alarm Clock by BLITZ

[App page](https://appshunter.io/ios/app/loud-alarm-clock-by-blitz/id1418149747)

This app provides extremely loud and customizable alarm sounds to ensure heavy sleepers wake up on time. Users can personalize alarms with their own music, choose from a wide variety of intense sound effects, and adjust clock displays. It offers advanced settings for multiple alarms, recurring schedules, and offline functionality.

**Highlights:** Unmatched loudness for heavy sleepers, Personalized music alarm options, Volume-boosted sound effects, Extensive collection of alarm tones, Customizable clock display themes, Multiple and recurring alarm settings, Offline functionality

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Loud Alarm Clock Pro Weekly | $0.99 | per 7 days |
| Loud Alarm Clock Pro | $0.99 | per month |
| Loud Alarm Clock Pro Annual | $9.99 | per year |
| Car Alarm Xtrm | $0.99 | one-time |
| EAS Beep | $0.99 | one-time |
| Barking Dog | $0.99 | one-time |
| Class Is Out | $0.99 | one-time |
| Progressive | $0.99 | one-time |
| Rain On Metal | $0.99 | one-time |
| Rooster Call | $0.99 | one-time |
| Scream | $0.99 | one-time |
| Sound Grenade | $0.99 | one-time |
| Chalkboard | $0.99 | one-time |
| Angry Parrot | $0.99 | one-time |
| Retro | $0.99 | one-time |
| All Sounds | $3.99 | one-time |
| Lifetime | $29.99 | one-time |

**What reviewers like**

- 🔊 Loud and effective alarms
- 👍 Easy to use
- 💤 Wakes heavy sleepers
- 🎶 Good selection of alarm sounds

**What reviewers complain about**

- 🔋 Drains battery when left open
- 🔍 Tiny minute display
- 🚫 Ads disrupt alarm
- 🔒 Requires app to be open and unlocked

**Reported bugs**

- Alarms not going off as scheduled
- Alarms randomly turning off
- Inconsistent alarm settings

**Requested features**

- Ability to adjust alarm volume
- Option to dim screen brightness
- Allow setting multiple alarms without issues
- Compatibility with Bluetooth speakers


### Flight parameters

[App page](https://appshunter.io/ios/app/flight-parameters/id1623908949)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Loud Alarm Clock by BLITZ free?

Loud Alarm Clock by BLITZ is free to download, with in-app purchases available.

### Is Flight parameters free?

Flight parameters costs $2.99, with no in-app purchases.

### Do Loud Alarm Clock by BLITZ or Flight parameters have ads?

Loud Alarm Clock by BLITZ shows ads; Flight parameters does not.

### Which is updated more often, Loud Alarm Clock by BLITZ or Flight parameters?

Loud Alarm Clock by BLITZ ships an update every 8 days, and Flight parameters every 3 weeks. Most recently, Loud Alarm Clock by BLITZ was updated on October 21, 2026 and Flight parameters on October 20, 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.*