# CS710S RFID Reader ObjC vs Marine Metrics

The clearest difference is in-app purchases: CS710S RFID Reader ObjC at none against Marine Metrics's 2. CS710S RFID Reader ObjC also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.4). Marine Metrics's advantage is update cadence (every 2 days vs every 7 months). On price and ads there is nothing between them.

Both are free to download. Marine Metrics sells 2 in-app purchases, starting at $2.99 per month. CS710S RFID Reader ObjC asks for nothing beyond the download.

CS710S RFID Reader ObjC ships an update every 7 months, Marine Metrics every 2 days. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CS710S RFID Reader ObjC | Marine Metrics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Size | 3 MB | 12 MB |
| Requires iOS | **15.6** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CSL](https://appshunter.io/developer/1225904973) | [Kurmudgeon](https://appshunter.io/developer/354937084) |

## What reviewers say

### CS710S RFID Reader ObjC

[App page](https://appshunter.io/ios/app/cs710s-rfid-reader-objc/id1664329679)

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

**In-app purchases:** none


### Marine Metrics

[App page](https://appshunter.io/ios/app/marine-metrics/id6807886638)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tides Pro Monthly | $2.99 | per month |
| Tides Pro Annual | $17.99 | per year |


## Frequently asked questions

### Is CS710S RFID Reader ObjC free?

CS710S RFID Reader ObjC is free to download, with no in-app purchases.

### Is Marine Metrics free?

Marine Metrics is free to download, with in-app purchases available.

### Do CS710S RFID Reader ObjC or Marine Metrics have ads?

Neither CS710S RFID Reader ObjC nor Marine Metrics shows ads.

### Which is updated more often, CS710S RFID Reader ObjC or Marine Metrics?

CS710S RFID Reader ObjC ships an update every 7 months, and Marine Metrics every 2 days. Most recently, CS710S RFID Reader ObjC was updated on October 25, 2026 and Marine Metrics on October 17, 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.*