# Voltline vs Last Keep

Voltline and Last Keep are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Voltline sells 1 one-off in-app purchase and Last Keep sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Voltline | Last Keep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 13 MB | 22 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Olof Petterson](https://appshunter.io/developer/1808256024) | [慧辰 吴](https://appshunter.io/developer/1764726378) |

## What reviewers say

### Voltline

[App page](https://appshunter.io/ios/app/voltline-tower-defense/id6760507113)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Voltline PRO | $2.99 | one-time |


### Last Keep

[App page](https://appshunter.io/ios/app/last-keep/id6760607468)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Diamond | $0.99 | one-time |
| 9 Diamonds | $7.99 | one-time |


## Frequently asked questions

### Is Voltline free?

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

### Is Last Keep free?

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

### Do Voltline or Last Keep have ads?

Neither Voltline nor Last Keep shows ads.

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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.*