# HotSteamer vs Post Watermark

The clearest difference is review sentiment: Post Watermark at 81% against HotSteamer's 0%. Post Watermark also leads on price (Free vs $4.99) and update cadence (monthly vs every 19 months). HotSteamer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Post Watermark is free to download; HotSteamer costs $4.99 up front. Post Watermark sells 2 in-app purchases, starting at $5.99 per month. HotSteamer asks for nothing beyond the download.

HotSteamer ships an update every 19 months, Post Watermark monthly. The most recent releases landed on August 29, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | HotSteamer | Post Watermark |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.5 (146 ratings)](https://appshunter.io/ios/app/post-watermark-share/id1500985494/reviews)** |
| Number of ratings | — | **146** |
| Positive reviews | 0.0% of reviews | **80.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 18 MB | 110 MB |
| Requires iOS | 15.0 | **14** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KOJI HARA](https://appshunter.io/developer/566940810) | [Dongwon Ahn](https://appshunter.io/developer/1500985493) |

## What reviewers say

### HotSteamer

[App page](https://appshunter.io/ios/app/hotsteamer/id1168405157)

Easily add realistic steam effects to your coffee, tea, and food photos. Enhance your social media content with visually appealing, warm imagery in just seconds. The app uses fluid simulation for realistic steam that can be adjusted and repositioned.

**Highlights:** Realistic steam simulation, Apply to camera preview or library photos, Adjust steam intensity, Reposition and resize steam, Record video with steam effects

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

**In-app purchases:** none


### Post Watermark

[App page](https://appshunter.io/ios/app/post-watermark-share/id1500985494)

Easily add custom watermarks to multiple images and videos before reposting them to Instagram. The app saves your repost history for quick access. It is not affiliated with Instagram and users are responsible for respecting intellectual property rights.

**Highlights:** Add watermarks to multiple images, Add watermarks to videos, Easy reposting to Instagram, Saves repost history, Free trial available

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $5.99 | per month |
| Premium yearly subscription | $49.99 | per year |


## Frequently asked questions

### Is HotSteamer free?

HotSteamer costs $4.99, with no in-app purchases.

### Is Post Watermark free?

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

### Do HotSteamer or Post Watermark have ads?

Post Watermark shows ads; HotSteamer does not.

### Which is updated more often, HotSteamer or Post Watermark?

HotSteamer ships an update every 19 months, and Post Watermark monthly. Most recently, HotSteamer was updated on August 29, 2026 and Post Watermark on October 19, 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.*