# Rate Ruler vs Dollar in Mexico

The clearest difference is in-app purchases: Rate Ruler at none against Dollar in Mexico's 4. Rate Ruler also leads on ads (none vs shown) and update cadence (every 2 days vs monthly). Dollar in Mexico's advantage is iOS requirement (14.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Dollar in Mexico sells 4 in-app purchases, starting at $0.99 per month. Rate Ruler asks for nothing beyond the download.

Rate Ruler ships an update every 2 days, Dollar in Mexico monthly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Rate Ruler | Dollar in Mexico |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/dollar-in-mexico/id6462698144/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 64 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Aprillio](https://appshunter.io/developer/1687463408) | [MoviliXa SAS](https://appshunter.io/developer/731013254) |

## What reviewers say

### Rate Ruler

[App page](https://appshunter.io/ios/app/rate-ruler/id6449024582)

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

**In-app purchases:** none


### Dollar in Mexico

[App page](https://appshunter.io/ios/app/dollar-in-mexico/id6462698144)

Track the daily official exchange rate for USD to MXN with historical data and notifications. Features an integrated calculator and currency behavior summaries. View graphs and equivalence tables for easy financial planning.

**Highlights:** Daily official exchange rate (FIX), Historical data since 1991, Currency behavior summary, Daily notifications, Exchange rate calculator, Graphs for last 20, 40, 60 days

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium one month | $0.99 | per month |
| Premium 3 months | $2.49 | per 3 months |
| Premium 6 months | $3.99 | per 6 months |
| Premium one year | $6.99 | per year |


## Frequently asked questions

### Is Rate Ruler free?

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

### Is Dollar in Mexico free?

Dollar in Mexico is free to download, with in-app purchases available.

### Do Rate Ruler or Dollar in Mexico have ads?

Dollar in Mexico shows ads; Rate Ruler does not.

### Which is updated more often, Rate Ruler or Dollar in Mexico?

Rate Ruler ships an update every 2 days, and Dollar in Mexico monthly. Most recently, Rate Ruler was updated on October 21, 2026 and Dollar in Mexico on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*