# AI Caption Generator vs Instant Automatic Subtitles

The clearest difference is update cadence: Instant Automatic Subtitles at every 10 days against AI Caption Generator's every 3 weeks. AI Caption Generator's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Caption Generator sells 6 in-app purchases, starting at $7.99 per 7 days and Instant Automatic Subtitles sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AI Caption Generator ships an update every 3 weeks, Instant Automatic Subtitles every 10 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AI Caption Generator | Instant Automatic Subtitles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/instant-automatic-subtitles/id6755148864/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 20 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eray Endes](https://appshunter.io/developer/1598523222) | [douglas santos](https://appshunter.io/developer/337456898) |

## What reviewers say

### AI Caption Generator

[App page](https://appshunter.io/ios/app/ai-caption-generator-postmate/id6502901728)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $7.99 | per 7 days |
| Yearly Plan | $29.99 | per year |
| Monthly Plan | $31.99 | per month |
| 2 Month Plan | $63.99 | per 2 months |
| 3 Month Plan | $95.99 | per 3 months |
| 6 Month Plan | $191.99 | per 6 months |


### Instant Automatic Subtitles

[App page](https://appshunter.io/ios/app/instant-automatic-subtitles/id6755148864)

This app converts audio and video files into accurate text transcripts and subtitles quickly. It prioritizes user privacy by processing all speech data directly on the device, offering offline functionality and multiple language support. Export your results in common formats for easy editing and sharing.

**Highlights:** Instant speech-to-text conversion, Accurate transcripts and subtitles, 100% on-device processing for privacy, Offline functionality, Video preview with synced subtitles, Export as .txt or .srt files

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | one-time |


## Frequently asked questions

### Is AI Caption Generator free?

AI Caption Generator is free to download, with in-app purchases available.

### Is Instant Automatic Subtitles free?

Instant Automatic Subtitles is free to download, with in-app purchases available.

### Do AI Caption Generator or Instant Automatic Subtitles have ads?

Neither AI Caption Generator nor Instant Automatic Subtitles shows ads.

### Which is updated more often, AI Caption Generator or Instant Automatic Subtitles?

AI Caption Generator ships an update every 3 weeks, and Instant Automatic Subtitles every 10 days. Most recently, AI Caption Generator was updated on November 8, 2026 and Instant Automatic Subtitles on October 30, 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.*