# Image Saliency vs Stop Donation Spam

The clearest difference is in-app purchases: Image Saliency at none against Stop Donation Spam's 2. Stop Donation Spam's advantage is ads (none vs shown) and update cadence (daily vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stop Donation Spam sells 2 in-app purchases, starting at $3.99 per 3 months. Image Saliency asks for nothing beyond the download.

Image Saliency ships an update fortnightly, Stop Donation Spam daily. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Image Saliency | Stop Donation Spam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.8 (44 ratings)](https://appshunter.io/ios/app/stop-donation-spam/id6736579999/reviews)** |
| Number of ratings | — | **44** |
| Positive reviews | — | 39.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Daily** |
| Monetization | — | Subscription |
| Size | 38 MB | 16 MB |
| Requires iOS | 17.7.2 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Marc Love](https://appshunter.io/developer/1772505990) |

## What reviewers say

### Image Saliency

[App page](https://appshunter.io/ios/app/image-saliency/id6511211544)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stop Donation Spam

[App page](https://appshunter.io/ios/app/stop-donation-spam/id6736579999)

This app helps you filter out unwanted political fundraising texts from your inbox. It uses intelligent detection and machine learning to identify and block these messages, offering a privacy-focused design and working towards permanent opt-outs.

**Highlights:** Specialized filtering for political spam texts, Intelligent detection using machine learning, Seamless integration with iOS Messages, Privacy-focused design, Working towards permanent removal from spam lists

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quarterly | $3.99 | per 3 months |
| Annual | $9.99 | per year |

**What reviewers like**

- 🚀 Works great
- 👍 Restores sanity to inbox
- 👍 Blocks a lot of spam
- 🙌 Life-changing

**What reviewers complain about**

- 🐛 Doesn't work as advertised
- 🐛 Fails to block spam
- 🕰️ Slow customer support
- 💰 Not worth the money

**Reported bugs**

- Doesn't filter any spam texts
- Requires multiple reinstalls to work
- Contradictory information on free trial

**Requested features**

- Ability to report spam numbers through the app
- Support for Mac OS


## Frequently asked questions

### Is Image Saliency free?

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

### Is Stop Donation Spam free?

Stop Donation Spam is free to download, with in-app purchases available.

### Do Image Saliency or Stop Donation Spam have ads?

Image Saliency shows ads; Stop Donation Spam does not.

### Which is updated more often, Image Saliency or Stop Donation Spam?

Image Saliency ships an update fortnightly, and Stop Donation Spam daily. Most recently, Image Saliency was updated on October 1, 2026 and Stop Donation Spam on October 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.*