# Coinpi vs Reverse Efficient Frontier App

The clearest difference is update cadence: Coinpi at every 3 weeks against Reverse Efficient Frontier App's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Coinpi sells 1 one-off in-app purchase and Reverse Efficient Frontier App sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Coinpi ships an update every 3 weeks, Reverse Efficient Frontier App every 10 months. The most recent releases landed on September 29, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Coinpi | Reverse Efficient Frontier App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 10 months |
| Size | 26 MB | 34 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alder Dario Velasquez Obando](https://appshunter.io/developer/1805461885) | [Aula Dluseyi Olowiwee](https://appshunter.io/developer/1773135198) |

## What reviewers say

### Coinpi

[App page](https://appshunter.io/ios/app/coinpi-expense-tracker/id6743998300)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coinpi + | $1.99 | one-time |


### Reverse Efficient Frontier App

[App page](https://appshunter.io/ios/app/reverse-efficient-frontier-app/id6748159202)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $99.99 | per year |


## Frequently asked questions

### Is Coinpi free?

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

### Is Reverse Efficient Frontier App free?

Reverse Efficient Frontier App is free to download, with in-app purchases available.

### Do Coinpi or Reverse Efficient Frontier App have ads?

Neither Coinpi nor Reverse Efficient Frontier App shows ads.

### Which is updated more often, Coinpi or Reverse Efficient Frontier App?

Coinpi ships an update every 3 weeks, and Reverse Efficient Frontier App every 10 months. Most recently, Coinpi was updated on September 29, 2026 and Reverse Efficient Frontier App on September 10, 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.*