# Optimal° vs Dalilak | دليلك

The clearest difference is update cadence: Dalilak | دليلك at every 2 months against Optimal°'s every 5 months. On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Optimal° against 5.0 for Dalilak | دليلك. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

Optimal° ships an update every 5 months, Dalilak | دليلك every 2 months. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Optimal° | Dalilak | دليلك |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (7 ratings)](https://appshunter.io/ios/app/optimal/id6473653236/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/dalilak/id6737205099/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 19 MB | 73 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Its Optimal LLC](https://appshunter.io/developer/1719356914) | [Emad Shejaeyah](https://appshunter.io/developer/1775257406) |

## What reviewers say

### Optimal°

[App page](https://appshunter.io/ios/app/optimal/id6473653236)

This app provides remote control and monitoring for a specific brand of tankless water heaters. Users can adjust temperature, track performance metrics, and receive diagnostic information for efficient hot water management.

**Highlights:** Set water heater output temperature, Monitor unit activity state, Track flow rate and energy consumption, View inlet and outlet water temperatures, Access diagnostics and error codes, Enable Vacation Mode

**In-app purchases:** none


### Dalilak | دليلك

[App page](https://appshunter.io/ios/app/dalilak/id6737205099)

Connects customers with skilled local service providers like technicians and handymen. Professionals can manage their work, gain visibility, and build their reputation.

**Highlights:** Find skilled technicians and professionals, Browse professional profiles and reviews, Easy and organized booking system, Direct communication with service providers, Professional profile creation for providers, Manage bookings and schedule, Increase visibility and income for professionals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Optimal° free?

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

### Is Dalilak | دليلك free?

Dalilak | دليلك is free to download, with no in-app purchases.

### Which has better reviews, Optimal° or Dalilak | دليلك?

Dalilak | دليلك is rated higher. Optimal° averages 4.9 out of 5 from 7 ratings, while Dalilak | دليلك averages 5.0 from 4 ratings.

### Do Optimal° or Dalilak | دليلك have ads?

Neither Optimal° nor Dalilak | دليلك shows ads.

### Which is updated more often, Optimal° or Dalilak | دليلك?

Optimal° ships an update every 5 months, and Dalilak | دليلك every 2 months. Most recently, Optimal° was updated on September 29, 2026 and Dalilak | دليلك on September 30, 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.*