# KPlayerAir vs Build SRT

The clearest difference is price: KPlayerAir at Free against Build SRT's $2.99. KPlayerAir also leads on iOS requirement (13.0 vs 17.6). Build SRT's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

KPlayerAir is free to download; Build SRT costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KPlayerAir ships an update monthly, Build SRT every 5 weeks. The most recent releases landed on September 12, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | KPlayerAir | Build SRT |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/build-srt/id6504424008/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | — | Paid |
| Size | 5 MB | 25 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 9+ | 4+ |
| Developer | [BoHoon Kim](https://appshunter.io/developer/406178499) | [韩 明洁](https://appshunter.io/developer/399378149) |

## What reviewers say

### KPlayerAir

[App page](https://appshunter.io/ios/app/kplayerair/id1146726064)

**In-app purchases:** none


### Build SRT

[App page](https://appshunter.io/ios/app/build-srt/id6504424008)

This utility converts spoken audio from videos into standard SRT subtitle files. It supports importing videos from your device and offers efficient sound extraction for subtitle generation. The generated SRT files are universally compatible and easily shareable.

**Highlights:** Speech-to-text transcription, Import videos from Photos and Files, Extract audio for SRT generation, Universal SRT file format, Share SRT files easily

**In-app purchases:** none


## Frequently asked questions

### Is KPlayerAir free?

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

### Is Build SRT free?

Build SRT costs $2.99, with no in-app purchases.

### Do KPlayerAir or Build SRT have ads?

KPlayerAir shows ads; Build SRT does not.

### Which is updated more often, KPlayerAir or Build SRT?

KPlayerAir ships an update monthly, and Build SRT every 5 weeks. Most recently, KPlayerAir was updated on September 12, 2026 and Build SRT on August 14, 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.*