# Relarm vs ColdStart

The clearest difference is rating: Relarm at 5.0 against ColdStart's 2.0. ColdStart's advantage is update cadence (daily vs monthly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Relarm sells 1 one-off in-app purchase and ColdStart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Relarm holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Relarm ships an update monthly, ColdStart daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Relarm | ColdStart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/relarm-5minute-interval-alarm/id6756233213/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/coldstart-engine-alarm-clock/id6787444544/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 55 MB | 39 MB |
| Requires iOS | 26.1 | 26.1 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuji Ishibashi](https://appshunter.io/developer/1832725336) | [Mehmet Cakmaz](https://appshunter.io/developer/6772245895) |

## What reviewers say

### Relarm

[App page](https://appshunter.io/ios/app/relarm-5minute-interval-alarm/id6756233213)

This app automates the creation of multiple alarms with customizable intervals and puzzle-based dismissal to prevent oversleeping. It offers persistent sounds, random playback, and theme options to help users wake up effectively.

**Highlights:** Automated batch alarm setup, Customizable interval and count, Puzzle unlock to dismiss alarms, Persistent alarm sounds, Random sound playback, Dark/Light mode themes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $2.99 | one-time |


### ColdStart

[App page](https://appshunter.io/ios/app/coldstart-engine-alarm-clock/id6787444544)

This alarm app replaces standard beeps with realistic engine sounds that escalate in intensity. It features a dark, cockpit-style interface with a live tachometer and offers various engine sounds as in-app purchases. The app prioritizes user privacy with no account or data collection.

**Highlights:** Realistic engine cranking sounds, Escalating alarm intensity, Live tachometer display, Pit stop snooze with countdown, In-app engine sound purchases, Privacy-focused, no data collection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Car Engines | $6.99 | one-time |


## Frequently asked questions

### Is Relarm free?

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

### Is ColdStart free?

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

### Which has better reviews, Relarm or ColdStart?

Relarm is rated higher. Relarm averages 5.0 out of 5 from 2 ratings, while ColdStart averages 2.0 from 1 ratings.

### Do Relarm or ColdStart have ads?

Neither Relarm nor ColdStart shows ads.

### Which is updated more often, Relarm or ColdStart?

Relarm ships an update monthly, and ColdStart daily. Most recently, Relarm was updated on November 5, 2026 and ColdStart 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.*