# Phone Spam Pattern Blocker vs JSI One

The clearest difference is in-app purchases: JSI One at none against Phone Spam Pattern Blocker's 1. JSI One also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Phone Spam Pattern Blocker sells 1 one-off in-app purchase. JSI One asks for nothing beyond the download.

Phone Spam Pattern Blocker ships an update every 2 weeks, JSI One every 3 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Phone Spam Pattern Blocker | JSI One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (230 ratings)](https://appshunter.io/ios/app/phone-spam-pattern-blocker/id1389985517/reviews)** | — |
| Number of ratings | **230** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 201 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Apparent Logic, LLC](https://appshunter.io/developer/314496791) | [Công Ty TNHH Chứng Khoán Nhật Bản](https://appshunter.io/developer/1835855177) |

## What reviewers say

### Phone Spam Pattern Blocker

[App page](https://appshunter.io/ios/app/phone-spam-pattern-blocker/id1389985517)

Block unwanted calls by creating custom patterns, like area codes or prefixes, to instantly silence millions of numbers. This app offers a powerful, on-device solution to combat robocalls and scams without subscriptions. Start blocking for free and upgrade for unlimited protection.

**Highlights:** Block calls by area code, exchange, or prefix, Block millions of numbers with a single pattern, New blocking engine handles up to 500 million numbers, One-time purchase for Pro version, Free tier blocks up to 5 million numbers, 100% on-device processing for privacy

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phone Pattern Blocker Pro | $4.99 | one-time |

**What reviewers like**

- ✅ Effectively blocks spam and robocalls when configured correctly
- 💰 Completely free with no subscription fees
- 🎯 Pattern-based blocking allows blocking entire area codes and prefixes
- ⚡ Works immediately without delays
- 🔧 Simple and intuitive interface

**What reviewers complain about**

- 🐛 Calls still come through despite being blocked
- ❌ Inconsistent blocking functionality
- 😕 Confusing user interface and unclear instructions
- 📞 Blocks legitimate calls unintentionally
- ⚠️ Limited number of patterns that can be blocked

**Reported bugs**

- Premium/paid features show payment error despite being purchased
- App freezes and becomes unresponsive
- Blocked numbers still ring through to user
- App blocks all incoming and outgoing calls
- App doesn't appear in iOS Settings > Phone > Call Blocking

**Requested features**

- Support for 10-digit phone numbers (Vietnam and other countries)
- Ability to whitelist/safelist numbers with same prefix
- SMS/text message blocking capability
- Call blocking log with statistics
- Copy and paste functionality for entering numbers


### JSI One

[App page](https://appshunter.io/ios/app/jsi-one/id6751571648)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Phone Spam Pattern Blocker free?

Phone Spam Pattern Blocker is free to download, with in-app purchases available.

### Is JSI One free?

JSI One is free to download, with no in-app purchases.

### Do Phone Spam Pattern Blocker or JSI One have ads?

Neither Phone Spam Pattern Blocker nor JSI One shows ads.

### Which is updated more often, Phone Spam Pattern Blocker or JSI One?

Phone Spam Pattern Blocker ships an update every 2 weeks, and JSI One every 3 weeks. Most recently, Phone Spam Pattern Blocker was updated on October 26, 2026 and JSI One on October 28, 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.*