# Keystone vs Amco Pay

Keystone and Amco Pay are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Keystone ships an update every 3 months, Amco Pay every 2 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Keystone | Amco Pay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (48 ratings)](https://appshunter.io/ios/app/amco-pay/id6443395408/reviews)** |
| Number of ratings | — | **48** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 31 MB | 85 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Antell System S de RL de CV](https://appshunter.io/developer/1227463390) | [International Education Services](https://appshunter.io/developer/1039975546) |

## What reviewers say

### Keystone

[App page](https://appshunter.io/ios/app/keystone/id1492776590)

**Features:** macOS Compatibility

**In-app purchases:** none


### Amco Pay

[App page](https://appshunter.io/ios/app/amco-pay/id6443395408)

Facilitates quick, easy, and secure payments for educational systems. Manage your child's Amco learning system payments conveniently from your mobile device.

**Highlights:** Quick payments, Easy to use, Secure transactions, Mobile payment, Manage learning system payments

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Keystone free?

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

### Is Amco Pay free?

Amco Pay is free to download, with no in-app purchases.

### Do Keystone or Amco Pay have ads?

Neither Keystone nor Amco Pay shows ads.

### Which is updated more often, Keystone or Amco Pay?

Keystone ships an update every 3 months, and Amco Pay every 2 months. Most recently, Keystone was updated on October 4, 2026 and Amco Pay on October 1, 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.*