# Silver Ratio Calculator vs TripSync Pro

The clearest difference is in-app purchases: Silver Ratio Calculator at none against TripSync Pro's 3. Silver Ratio Calculator also leads on iOS requirement (10.0 vs 17). TripSync Pro's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. TripSync Pro sells 3 in-app purchases, starting at $2.99 per month. Silver Ratio Calculator asks for nothing beyond the download.

## The numbers

| Metric | Silver Ratio Calculator | TripSync Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | — |
| Size | 51 MB | 2 MB |
| Requires iOS | **10.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Koji Watanabe](https://appshunter.io/developer/1332653587) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Silver Ratio Calculator

[App page](https://appshunter.io/ios/app/silver-ratio-calculator/id1467476259)

**Features:** Vision Pro support

**In-app purchases:** none


### TripSync Pro

[App page](https://appshunter.io/ios/app/tripsync-pro/id6763983850)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TripSync Pro Monthly | $2.99 | per month |
| TripSync Pro Yearly | $19.99 | per year |
| TripSync Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Silver Ratio Calculator free?

Silver Ratio Calculator is free to download, with no in-app purchases.

### Is TripSync Pro free?

TripSync Pro is free to download, with in-app purchases available.

### Do Silver Ratio Calculator or TripSync Pro have ads?

Silver Ratio Calculator shows ads; TripSync Pro does not.

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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.*