# Thetis Tools vs OnSolve

The clearest difference is update cadence: OnSolve at monthly against Thetis Tools's every 7 months. OnSolve also leads on iOS requirement (12.4 vs 14.0). 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.

Thetis Tools ships an update every 7 months, OnSolve monthly. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Thetis Tools | OnSolve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.9 (32 ratings)](https://appshunter.io/ios/app/onsolve/id1487868963/reviews)** |
| Number of ratings | — | **32** |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | — | Free |
| Size | 50 MB | 71 MB |
| Requires iOS | 14.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thetis srl](https://appshunter.io/developer/397584184) | [OnSolve](https://appshunter.io/developer/1279335965) |

## What reviewers say

### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


### OnSolve

[App page](https://appshunter.io/ios/app/onsolve/id1487868963)

This app delivers critical communications directly to your mobile device. It's designed for organizations to send urgent updates and routine business information to employees, partners, and customers. Stay informed about important events that could impact operations, assets, and safety.

**Highlights:** Critical communication delivery, Push notifications for updates, Supports employees, partners, customers, Urgent and routine message delivery, Real-time event alerts

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thetis Tools free?

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

### Is OnSolve free?

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

### Do Thetis Tools or OnSolve have ads?

Neither Thetis Tools nor OnSolve shows ads.

### Which is updated more often, Thetis Tools or OnSolve?

Thetis Tools ships an update every 7 months, and OnSolve monthly. Most recently, Thetis Tools was updated on September 10, 2026 and OnSolve on September 15, 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.*