# Metabolism Sim vs Relay Smart Agent

The clearest difference is review sentiment: Metabolism Sim at 57% against Relay Smart Agent's 0%. Metabolism Sim also leads on rating (3.2 vs 1.2) and iOS requirement (10.0 vs 15.0). Relay Smart Agent's advantage is device support (3 vs 1). On price, ratings volume, update cadence 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.

Metabolism Sim holds the better App Store score, 3.2 against 1.2. Both are backed by a comparable volume of ratings — 71 and 33 respectively. Written reviews point the same way: 57% of Metabolism Sim's written reviews are positive against 0% of Relay Smart Agent's.

Metabolism Sim ships an update every 3 months, Relay Smart Agent every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Metabolism Sim | Relay Smart Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (71 ratings)](https://appshunter.io/ios/app/metabolism-sim/id992862964/reviews)** | [1.2 (33 ratings)](https://appshunter.io/ios/app/relay-smart-agent/id1374371214/reviews) |
| Number of ratings | **71** | 33 |
| Positive reviews | **57.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 132 MB | 9 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amplify Education, Inc.](https://appshunter.io/developer/433704168) | [Lightspeed Solutions, LLC](https://appshunter.io/developer/367422071) |

## What reviewers say

### Metabolism Sim

[App page](https://appshunter.io/ios/app/metabolism-sim/id992862964)

This application simulates human metabolism, designed to complement a science curriculum. It requires a valid Amplify login and license provided by a school to function.

**Highlights:** Metabolism simulation, Science curriculum integration, Requires Amplify login, School-provided license needed

**In-app purchases:** none


### Relay Smart Agent

[App page](https://appshunter.io/ios/app/relay-smart-agent/id1374371214)

This application offers web filtering and safety features for iOS devices, ensuring CIPA compliance for schools. It provides on and off-campus protection and reports on student activity, acting as a hardware-free cloud solution.

**Highlights:** CIPA compliant web filtering, On/off campus safety, Student activity reporting, Hardware-free cloud solution, Anytime, anywhere filtering

**In-app purchases:** none


## Frequently asked questions

### Is Metabolism Sim free?

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

### Is Relay Smart Agent free?

Relay Smart Agent is free to download, with no in-app purchases.

### Which has better reviews, Metabolism Sim or Relay Smart Agent?

Metabolism Sim is rated higher. Metabolism Sim averages 3.2 out of 5 from 71 ratings, while Relay Smart Agent averages 1.2 from 33 ratings.

### Do Metabolism Sim or Relay Smart Agent have ads?

Neither Metabolism Sim nor Relay Smart Agent shows ads.

### Which is updated more often, Metabolism Sim or Relay Smart Agent?

Metabolism Sim ships an update every 3 months, and Relay Smart Agent every 2 months. Most recently, Metabolism Sim was updated on November 6, 2026 and Relay Smart Agent on November 2, 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.*