# COST Events vs OnSolve

The clearest difference is rating: COST Events at 4.0 against OnSolve's 1.9. OnSolve's advantage is ads (none vs shown) and update cadence (monthly vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

COST Events holds the better App Store score, 4.0 against 1.9. That said, the two scores are not equally well evidenced: OnSolve has 32 ratings behind it against 1, so its average is the more settled of the two.

COST Events ships an update every 5 months, OnSolve monthly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | COST Events | OnSolve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/cost-events/id919678163/reviews)** | [1.9 (32 ratings)](https://appshunter.io/ios/app/onsolve/id1487868963/reviews) |
| Number of ratings | 1 | **32** |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Ad-supported | **Free** |
| Size | 50 MB | 70 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Council On State Taxation](https://appshunter.io/developer/1513621416) | [OnSolve](https://appshunter.io/developer/1279335965) |

## What reviewers say

### COST Events

[App page](https://appshunter.io/ios/app/cost-events/id919678163)

This app provides attendees of state tax conferences with essential event information. Access schedules, session materials, speaker details, and networking opportunities in one place. Stay updated with breaking announcements and navigate event spaces easily.

**Highlights:** Conference Schedule, Session Materials, Attendee Roster, Speaker Information, Exhibitor Listing, Meeting Space Floor Plan, Breaking Announcements

**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 COST Events free?

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

### Is OnSolve free?

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

### Which has better reviews, COST Events or OnSolve?

COST Events is rated higher. COST Events averages 4.0 out of 5 from 1 ratings, while OnSolve averages 1.9 from 32 ratings.

### Do COST Events or OnSolve have ads?

COST Events shows ads; OnSolve does not.

### Which is updated more often, COST Events or OnSolve?

COST Events ships an update every 5 months, and OnSolve monthly. Most recently, COST Events was updated on October 9, 2026 and OnSolve 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.*