# Orenda vs Amano Pro

The clearest difference is ratings volume: Orenda at 478 against Amano Pro's 7. Amano Pro's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 82%). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Amano Pro holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Orenda has 478 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 82% of Orenda's written reviews are positive against 100% of Amano Pro's.

Orenda ships an update monthly, Amano Pro fortnightly. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Orenda | Amano Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (478 ratings)](https://appshunter.io/ios/app/orenda/id1171005221/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/amano-pro/id1606243562/reviews)** |
| Number of ratings | **478** | 7 |
| Positive reviews | 81.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 78 MB | 105 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hasa Inc.](https://appshunter.io/developer/1713193810) | [Amano Technologies, Inc.](https://appshunter.io/developer/1606243564) |

## What reviewers say

### Orenda

[App page](https://appshunter.io/ios/app/orenda/id1171005221)

This app helps you master pool chemistry by accurately calculating chemical dosages and balancing water based on the LSI. It offers a user-friendly experience for both novices and professionals, including a volume estimator and educational videos.

**Highlights:** Chemical dosing calculator, LSI water balancing, Pool volume estimator, User-friendly interface, Educational videos

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 💡 Helpful for pool maintenance
- 🚀 Simplifies pool chemistry
- 👍 Provides valuable information
- 👍 Great educational resources

**What reviewers complain about**

- 🐛 Issues with updating desired levels
- 🐛 Metric system not working properly
- 🐛 Difficult to input readings
- 🐛 Lack of history/logging functionality

**Reported bugs**

- Desired levels changing when inputting current values
- Metric system not functioning as expected
- Slider feature for inputting readings is slow and frustrating
- App not optimized for all iPhone screen sizes

**Requested features**

- Ability to save pool volume and desired levels
- Option to log pool history and track trends
- Integration with pool chemical monitors
- Ability to set custom chemical concentrations
- Support for more languages (e.g., Chinese)


### Amano Pro

[App page](https://appshunter.io/ios/app/amano-pro/id1606243562)

This app provides automated monitoring and alerts for commercial pool and spa water chemistry. It offers custom instructions to maintain proper balance, eliminating guesswork for water maintenance.

**Highlights:** Automated chemical alerts, Custom balancing instructions, Commercial pool/spa focus, Real-time water monitoring, Bacteria prevention

**In-app purchases:** none


## Frequently asked questions

### Is Orenda free?

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

### Is Amano Pro free?

Amano Pro is free to download, with no in-app purchases.

### Which has better reviews, Orenda or Amano Pro?

Amano Pro is rated higher. Orenda averages 4.7 out of 5 from 478 ratings, while Amano Pro averages 5.0 from 7 ratings.

### Do Orenda or Amano Pro have ads?

Neither Orenda nor Amano Pro shows ads.

### Which is updated more often, Orenda or Amano Pro?

Orenda ships an update monthly, and Amano Pro fortnightly. Most recently, Orenda was updated on October 26, 2026 and Amano Pro on October 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.*