# Ontoto Connect vs PredictRain

The clearest difference is in-app purchases: Ontoto Connect at none against PredictRain's 3. Ontoto Connect also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PredictRain sells 3 in-app purchases, starting at $6.99 per month. Ontoto Connect asks for nothing beyond the download.

Ontoto Connect ships an update monthly, PredictRain every 3 weeks. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Ontoto Connect | PredictRain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (67 ratings)](https://appshunter.io/ios/app/predictrain/id6457883197/reviews)** |
| Number of ratings | — | **67** |
| Positive reviews | — | 70.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 66 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ontoto Pty Ltd](https://appshunter.io/developer/1219863934) | [PredictWind Limited](https://appshunter.io/developer/477048590) |

## What reviewers say

### Ontoto Connect

[App page](https://appshunter.io/ios/app/ontoto-connect/id1491266704)

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

**In-app purchases:** none


### PredictRain

[App page](https://appshunter.io/ios/app/predictrain/id6457883197)

Get ultra-precise rain forecasts with AI-powered predictions and real-time radar data. Receive instant alerts for incoming rain and plan your outdoor activities with confidence using accumulated rainfall data and historical trends.

**Highlights:** AI-powered 4-hour rain forecasts, Real-time rain radar, Instant rain alerts, Accumulated rainfall tracking, Multi-model forecast comparison, Lightning tracker

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PredictRain Pro Monthly | $6.99 | per month |
| PredictRain | $12.00 | per 3 months |
| PredictRain Pro Annual | $29.00 | per year |


## Frequently asked questions

### Is Ontoto Connect free?

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

### Is PredictRain free?

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

### Do Ontoto Connect or PredictRain have ads?

Neither Ontoto Connect nor PredictRain shows ads.

### Which is updated more often, Ontoto Connect or PredictRain?

Ontoto Connect ships an update monthly, and PredictRain every 3 weeks. Most recently, Ontoto Connect was updated on October 5, 2026 and PredictRain on October 17, 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.*