# Predictor vs RuleWatcher

The clearest difference is update cadence: Predictor at every 5 days against RuleWatcher's monthly. Predictor also leads on iOS requirement (13.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Predictor ships an update every 5 days, RuleWatcher monthly. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Predictor | RuleWatcher |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 35 MB | 86 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Tomoya Machiguchi](https://appshunter.io/developer/1779439777) | [OSINTech](https://appshunter.io/developer/1792384168) |

## What reviewers say

### Predictor

[App page](https://appshunter.io/ios/app/predictor-sns-for-future/id6738114527)

**Features:** macOS Compatibility

**In-app purchases:** none


### RuleWatcher

[App page](https://appshunter.io/ios/app/rulewatcher/id6740983878)

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

**In-app purchases:** none


## Frequently asked questions

### Is Predictor free?

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

### Is RuleWatcher free?

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

### Do Predictor or RuleWatcher have ads?

Neither Predictor nor RuleWatcher shows ads.

### Which is updated more often, Predictor or RuleWatcher?

Predictor ships an update every 5 days, and RuleWatcher monthly. Most recently, Predictor was updated on September 10, 2026 and RuleWatcher on September 18, 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.*