# PrimeVolt vs TekPass Keep

The clearest difference is in-app purchases: PrimeVolt at none against TekPass Keep's 1. PrimeVolt also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TekPass Keep sells 1 one-off in-app purchase. PrimeVolt asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on June 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | PrimeVolt | TekPass Keep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Size | 19 MB | 17 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Asian Power Devices Inc](https://appshunter.io/developer/1214788661) | [evermore](https://appshunter.io/developer/417924068) |

## What reviewers say

### PrimeVolt

[App page](https://appshunter.io/ios/app/primevolt/id1291653570)

**Features:** macOS Compatibility

**In-app purchases:** none


### TekPass Keep

[App page](https://appshunter.io/ios/app/tekpass-keep/id1665119184)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 啟用完整功能 360 天 | $11.99 | one-time |


## Frequently asked questions

### Is PrimeVolt free?

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

### Is TekPass Keep free?

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

### Do PrimeVolt or TekPass Keep have ads?

Neither PrimeVolt nor TekPass Keep shows ads.

### Which is updated more often, PrimeVolt or TekPass Keep?

PrimeVolt ships an update every 6 weeks, and TekPass Keep every 6 weeks. Most recently, PrimeVolt was updated on June 22, 2026 and TekPass Keep on September 16, 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.*