# HIIT Dual Timer vs Air Cloud

The clearest difference is ads: HIIT Dual Timer at none against Air Cloud's shown. HIIT Dual Timer also leads on update cadence (every 5 days vs every 18 months) and monetization model (free vs ad-supported). Air Cloud's advantage is review sentiment (33% vs 0%). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HIIT Dual Timer ships an update every 5 days, Air Cloud every 18 months. The most recent releases landed on June 3, 2026 and July 21, 2026 respectively.

## The numbers

| Metric | HIIT Dual Timer | Air Cloud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/hiit-dual-timer/id1505262060/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 20 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BWorby Works](https://appshunter.io/developer/546372907) | [Seven MHF Italia SRL](https://appshunter.io/developer/1601637088) |

## What reviewers say

### HIIT Dual Timer

[App page](https://appshunter.io/ios/app/hiit-dual-timer/id1505262060)

This interval timer allows you to set custom durations for work and rest periods, and then repeat them for a specified number of rounds. It's designed for high-intensity interval training and other timed activities.

**Highlights:** Customizable work intervals, Customizable rest intervals, Set number of rounds, Simple start and go functionality, Ideal for HIIT workouts

**Features:** macOS Compatibility

**In-app purchases:** none


### Air Cloud

[App page](https://appshunter.io/ios/app/air-cloud/id1601637086)

Easily book appointments at salons, barbershops, and tattoo studios 24/7. An AI assistant guides you in choosing services and staff, confirming bookings via email and eliminating phone wait times. View your appointment history and details.

**Highlights:** AI-powered appointment booking, 24/7 booking availability, Service and staff recommendations, Email booking confirmation, Appointment history tracking, No booking fees

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Dual Timer free?

HIIT Dual Timer is free to download, with no in-app purchases.

### Is Air Cloud free?

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

### Do HIIT Dual Timer or Air Cloud have ads?

Air Cloud shows ads; HIIT Dual Timer does not.

### Which is updated more often, HIIT Dual Timer or Air Cloud?

HIIT Dual Timer ships an update every 5 days, and Air Cloud every 18 months. Most recently, HIIT Dual Timer was updated on June 3, 2026 and Air Cloud on July 21, 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.*