# Slapp Pro vs Srt.io

The clearest difference is price: Srt.io at Free against Slapp Pro's $4.99. Srt.io also leads on update cadence (every 4 days vs every 3 months). Slapp Pro's advantage is iOS requirement (15.0 vs 17.4). On ads, in-app purchases and device support there is nothing between them.

Srt.io is free to download; Slapp Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Slapp Pro ships an update every 3 months, Srt.io every 4 days. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Slapp Pro | Srt.io |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/slapp-pro/id1576185036/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 22 MB | 8 MB |
| Requires iOS | **15.0** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BalanceCG](https://appshunter.io/developer/1517122018) | [健 王](https://appshunter.io/developer/1558318494) |

## What reviewers say

### Slapp Pro

[App page](https://appshunter.io/ios/app/slapp-pro/id1576185036)

This app allows professionals to quickly add context to photos by 'slapping' custom tags onto them. It integrates with your device's photo albums for easy organization and retrieval, streamlining documentation for various industries.

**Highlights:** Custom tags for photo context, Seamless Photos album integration, Create or select albums within the app, Search photos by tags, Fast interface for on-the-go use, Import existing photos with tags, Optimized for iPhone, iPad, and macOS

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

**In-app purchases:** none


### Srt.io

[App page](https://appshunter.io/ios/app/srtio/id6502290949)

**In-app purchases:** none


## Frequently asked questions

### Is Slapp Pro free?

Slapp Pro costs $4.99, with no in-app purchases.

### Is Srt.io free?

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

### Do Slapp Pro or Srt.io have ads?

Neither Slapp Pro nor Srt.io shows ads.

### Which is updated more often, Slapp Pro or Srt.io?

Slapp Pro ships an update every 3 months, and Srt.io every 4 days. Most recently, Slapp Pro was updated on October 1, 2026 and Srt.io on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*