# Redmap vs myGrammar

The clearest difference is update cadence: myGrammar at every 4 days against Redmap's fortnightly. Redmap's advantage is iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Redmap ships an update fortnightly, myGrammar every 4 days. The most recent releases landed on September 28, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Redmap | myGrammar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/redmap/id720634088/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 30 MB | 40 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Condense Pty Ltd](https://appshunter.io/developer/1385358480) | [Launceston Church Grammar School](https://appshunter.io/developer/1710483446) |

## What reviewers say

### Redmap

[App page](https://appshunter.io/ios/app/redmap/id720634088)

Contribute to marine science by logging sightings of uncommon marine species in Australian waters. Expert scientists verify your observations, helping to map species distribution shifts in response to environmental changes. Explore species information and build your personal sighting map.

**Highlights:** Log uncommon marine species sightings, Expert scientific verification, Map species distribution changes, View species information and photos, Build personal sighting catalogue, Citizen science contribution

**In-app purchases:** none


### myGrammar

[App page](https://appshunter.io/ios/app/mygrammar/id6468743599)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Redmap free?

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

### Is myGrammar free?

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

### Do Redmap or myGrammar have ads?

Neither Redmap nor myGrammar shows ads.

### Which is updated more often, Redmap or myGrammar?

Redmap ships an update fortnightly, and myGrammar every 4 days. Most recently, Redmap was updated on September 28, 2026 and myGrammar 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.*