# KeepCalling International vs AIChE Engage

The clearest difference is in-app purchases: AIChE Engage at none against KeepCalling International's 15. KeepCalling International's advantage is update cadence (every 3 weeks vs every 21 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KeepCalling International sells 14 one-off in-app purchases. AIChE Engage asks for nothing beyond the download.

KeepCalling International ships an update every 3 weeks, AIChE Engage every 21 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | KeepCalling International | AIChE Engage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (19K ratings)](https://appshunter.io/ios/app/keepcalling-international/id518708790/reviews)** | — |
| Number of ratings | **19K** | — |
| Positive reviews | 39.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 21 months |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 6 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Miron Enterprises, LLC](https://appshunter.io/developer/518708793) | [AIChE](https://appshunter.io/developer/726639920) |

## What reviewers say

### KeepCalling International

[App page](https://appshunter.io/ios/app/keepcalling-international/id518708790)

Make affordable international calls, send mobile recharges, and get travel eSIMs with this app. Enjoy high-quality VoIP calls, instant top-ups to over 160 countries, and seamless data plans for your trips abroad. Stay connected globally without expensive roaming fees.

**Highlights:** Low-rate international calls, Mobile recharge for 160+ countries, Travel eSIM data plans, High-quality VoIP calls, Integrated contacts, Speed dial, Set Caller ID

**Features:** Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $5 Voice Credit | $5.99 | one-time |
| $6 Voice Credit | $5.99 | one-time |
| £4 Voice Credit | $5.99 | one-time |
| €4.5 Voice Credit | $5.99 | one-time |
| ¥500 Voice Credit | $5.99 | one-time |
| R$15 Voice Credit | $5.99 | one-time |
| Prepaid 10 CAD credit | $8.99 | one-time |
| Prepaid 10 EUR credit | $11.99 | one-time |
| $10 Voice Credit | $11.99 | one-time |
| Prepaid 20 CAD credit | $17.99 | one-time |
| $20 Voice Credit | $23.99 | one-time |
| Prepaid 20 GBP credit | $29.99 | one-time |
| Prepaid 50 AUD credit | $39.99 | one-time |
| Prepaid 50 CAD credit | $44.99 | one-time |

**What reviewers like**

- 🚀 Great first call
- 🚀 Easy to use app
- 🚀 Affordable, fast, and excellent sound
- 🚀 Seamless integration with iOS
- 🚀 Reliable service

**What reviewers complain about**

- 🐛 Busy for what
- 🐛 Hard to connect
- 🐛 Worst app ever, don't waste your money
- 🐛 Drops my calls every time
- 🐛 App is not working properly

**Reported bugs**

- Prompt doesn't work
- Can't find number

**Requested features**

- Add ability to add minutes/call time from within the app


### AIChE Engage

[App page](https://appshunter.io/ios/app/aiche-engage/id1164180188)

**In-app purchases:** none


## Frequently asked questions

### Is KeepCalling International free?

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

### Is AIChE Engage free?

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

### Do KeepCalling International or AIChE Engage have ads?

Both KeepCalling International and AIChE Engage show ads.

### Which is updated more often, KeepCalling International or AIChE Engage?

KeepCalling International ships an update every 3 weeks, and AIChE Engage every 21 months. Most recently, KeepCalling International was updated on November 1, 2026 and AIChE Engage on October 26, 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.*