# HIIT Dual Timer vs CyanoLakes

The clearest difference is rating: HIIT Dual Timer at 3.0 against CyanoLakes's 1.0. HIIT Dual Timer also leads on in-app purchases (none vs 2) and update cadence (every 5 days vs every 4 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. CyanoLakes sells 2 in-app purchases, starting at $4.99 per month. HIIT Dual Timer asks for nothing beyond the download.

HIIT Dual Timer holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

HIIT Dual Timer ships an update every 5 days, CyanoLakes every 4 months. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | HIIT Dual Timer | CyanoLakes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/hiit-dual-timer/id1505262060/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/cyanolakes/id1537355837/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 4 months |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BWorby Works](https://appshunter.io/developer/546372907) | [CyanoLakes](https://appshunter.io/developer/1537355839) |

## 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


### CyanoLakes

[App page](https://appshunter.io/ios/app/cyanolakes/id1537355837)

Receive near real-time forecasts and satellite imagery to avoid harmful algal blooms. Get trusted risk assessments based on WHO guidelines to plan your water activities with confidence. Daily updates are provided for blue-green algal risks, with options to track favorite lakes.

**Highlights:** Harmful algal bloom forecasts, Satellite imagery, WHO-based risk assessments, Daily water quality updates, Personalized lake watchlist, 10-day ahead forecasts (premium)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $4.99 | per month |
| Annual Premium Subscription | $34.99 | per year |


## Frequently asked questions

### Is HIIT Dual Timer free?

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

### Is CyanoLakes free?

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

### Which has better reviews, HIIT Dual Timer or CyanoLakes?

HIIT Dual Timer is rated higher. HIIT Dual Timer averages 3.0 out of 5 from 1 ratings, while CyanoLakes averages 1.0 from 1 ratings.

### Do HIIT Dual Timer or CyanoLakes have ads?

Neither HIIT Dual Timer nor CyanoLakes shows ads.

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

HIIT Dual Timer ships an update every 5 days, and CyanoLakes every 4 months. Most recently, HIIT Dual Timer was updated on October 10, 2026 and CyanoLakes on October 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.*