# Croc Watch vs Simply Read Notes

The clearest difference is in-app purchases: Croc Watch at none against Simply Read Notes's 8. Croc Watch also leads on update cadence (every 9 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simply Read Notes sells 8 in-app purchases, starting at $0.99 per 7 days. Croc Watch asks for nothing beyond the download.

Croc Watch ships an update every 9 days, Simply Read Notes every 3 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Croc Watch | Simply Read Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simply-read-notes/id6505057767/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 50 MB | 101 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Voluntary Nature Conservancy Inc.](https://appshunter.io/developer/1575187210) | [Frederic Nagler](https://appshunter.io/developer/1693577034) |

## What reviewers say

### Croc Watch

[App page](https://appshunter.io/ios/app/croc-watch/id1598145012)

Contribute to crocodile research and conservation by collecting and submitting data on crocodile sightings in India. Your observations help build a vital database for scientific study and species protection.

**Highlights:** Citizen science participation, Crocodile data collection, Support conservation efforts, Build research database, Report crocodile sightings

**In-app purchases:** none


### Simply Read Notes

[App page](https://appshunter.io/ios/app/simply-read-notes/id6505057767)

Master music notation with this comprehensive educational tool. It offers guided learning and customizable exercises to improve your sight-reading skills across various clefs and difficulty levels. Daily challenges and progress tracking help you become an ace note reader.

**Highlights:** Guided learning program, Customizable manual exercises, Multiple clef support, Daily challenges, Progressive difficulty adaptation, Three language options for notes

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription Weekly | $0.99 | per 7 days |
| Pro Subscription Monthly | $2.99 | per month |
| Pro Subscription Yearly | $29.99 | per year |
| Small Gem Pack | $0.99 | one-time |
| Raise Gem Limit | $2.99 | one-time |
| Medium Gem Pack | $4.99 | one-time |
| Large Gem Pack | $9.99 | one-time |
| Full version | $9.99 | one-time |


## Frequently asked questions

### Is Croc Watch free?

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

### Is Simply Read Notes free?

Simply Read Notes is free to download, with in-app purchases available.

### Do Croc Watch or Simply Read Notes have ads?

Neither Croc Watch nor Simply Read Notes shows ads.

### Which is updated more often, Croc Watch or Simply Read Notes?

Croc Watch ships an update every 9 days, and Simply Read Notes every 3 months. Most recently, Croc Watch was updated on October 3, 2026 and Simply Read Notes 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.*