# SMS Junk Filter vs KeyFlow AI

The clearest difference is rating: KeyFlow AI at 5.0 against SMS Junk Filter's 3.2. SMS Junk Filter's advantage is ratings volume (16 vs 1) and update cadence (every 9 days vs every 3 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SMS Junk Filter sells 1 in-app purchase, starting at $7.99 per year and KeyFlow AI sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

KeyFlow AI holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: SMS Junk Filter has 16 ratings behind it against 1, so its average is the more settled of the two.

SMS Junk Filter ships an update every 9 days, KeyFlow AI every 3 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SMS Junk Filter | KeyFlow AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (16 ratings)](https://appshunter.io/ios/app/sms-junk-filter/id1248160670/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keyflow-ai/id6758787816/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 30 MB | 19 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [RADSense Software](https://appshunter.io/developer/465965041) | [Lumozz](https://appshunter.io/developer/1875045168) |

## What reviewers say

### SMS Junk Filter

[App page](https://appshunter.io/ios/app/sms-junk-filter/id1248160670)

Automatically filters unwanted SMS and MMS messages using AI and a community-powered spam reporting system. Create custom rules to block or allow specific messages and avoid notifications from spam, phishing, and malicious links.

**Highlights:** Automatic SMS spam filtering, AI-powered filtering engine, Customizable blocking rules, Cloud-based spam reporting, Phishing and malicious link detection, Apple Watch notification avoidance

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SMS Junk Filter | $7.99 | per year |


### KeyFlow AI

[App page](https://appshunter.io/ios/app/keyflow-ai/id6758787816)

Enhance your writing with an AI-powered keyboard. Instantly rewrite messages in different tones, fix grammar, translate languages, and dictate with accurate transcription. Save frequently used phrases and replay past actions seamlessly within any app.

**Highlights:** Rewrite messages with different tones, Instant spelling and grammar correction, Translate to over 50 languages, Whisper-powered dictation, Save and reuse text snippets, Replay recent actions

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeyFlow Pro | $4.99 | per month |
| KeyFlow Pro | $39.99 | per year |
| KeyFlow BYOK Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is SMS Junk Filter free?

SMS Junk Filter is free to download, with in-app purchases available.

### Is KeyFlow AI free?

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

### Which has better reviews, SMS Junk Filter or KeyFlow AI?

KeyFlow AI is rated higher. SMS Junk Filter averages 3.2 out of 5 from 16 ratings, while KeyFlow AI averages 5.0 from 1 ratings.

### Do SMS Junk Filter or KeyFlow AI have ads?

Neither SMS Junk Filter nor KeyFlow AI shows ads.

### Which is updated more often, SMS Junk Filter or KeyFlow AI?

SMS Junk Filter ships an update every 9 days, and KeyFlow AI every 3 weeks. Most recently, SMS Junk Filter was updated on October 21, 2026 and KeyFlow AI on October 24, 2026.

---

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