# Orpheo vs MOMENTO®

The clearest difference is review sentiment: MOMENTO® at 100% against Orpheo's 0%. MOMENTO® also leads on update cadence (every 4 weeks vs every 6 months). Orpheo's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 16.0). 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.

Orpheo ships an update every 6 months, MOMENTO® every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Orpheo | MOMENTO® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (10 ratings)](https://appshunter.io/ios/app/momento/id1485796812/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 112 MB | 36 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CCEI](https://appshunter.io/developer/468677300) | [Galatea USA](https://appshunter.io/developer/1260100273) |

## What reviewers say

### Orpheo

[App page](https://appshunter.io/ios/app/orpheo/id1235085282)

This app helps regulate pH and ORP levels, ideal for liquid chlorine treatment systems. An optional chamber simplifies installation by combining measurement and injection.

**Highlights:** pH regulation, ORP regulation, Liquid chlorine treatment integration, Optional ZeliaPod measuring chamber, Flow sensor integration

**Features:** macOS Compatibility

**In-app purchases:** none


### MOMENTO®

[App page](https://appshunter.io/ios/app/momento/id1485796812)

This app allows users to write to NFC tags using their iPhone, enabling personalized messages, videos, and promotions. It transforms ordinary interactions with products and environments into memorable experiences for businesses and consumers alike.

**Highlights:** Write to NFC tags, Personalize messages, Create custom promotions, Interactive product experiences, Business and consumer use

**In-app purchases:** none


## Frequently asked questions

### Is Orpheo free?

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

### Is MOMENTO® free?

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

### Do Orpheo or MOMENTO® have ads?

Neither Orpheo nor MOMENTO® shows ads.

### Which is updated more often, Orpheo or MOMENTO®?

Orpheo ships an update every 6 months, and MOMENTO® every 4 weeks. Most recently, Orpheo was updated on November 2, 2026 and MOMENTO® on November 3, 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.*