# Appian vs GatherNow by Certain

The clearest difference is rating: GatherNow by Certain at 4.7 against Appian's 3.7. GatherNow by Certain also leads on iOS requirement (16.6 vs 18.0). Appian's advantage is monetization model (free vs ad-supported) and ratings volume (40 vs 6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

GatherNow by Certain holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Appian has 40 ratings behind it against 6, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Appian | GatherNow by Certain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (40 ratings)](https://appshunter.io/ios/app/appian/id417065205/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/gathernow-by-certain/id1301552692/reviews)** |
| Number of ratings | **40** | 6 |
| Positive reviews | 23.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 139 MB | 44 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appian Corporation](https://appshunter.io/developer/412880252) | [Certain Inc.](https://appshunter.io/developer/813791820) |

## What reviewers say

### Appian

[App page](https://appshunter.io/ios/app/appian/id417065205)

This app provides mobile access to business processes and enterprise data, allowing users to monitor, collaborate, and act on the go. It offers features like task management, collaborative feeds, and offline form processing for a connected mobile workforce.

**Highlights:** Mobile access to Appian platform, Task management, Collaborative activity feed, Enterprise data discovery, Offline forms processing, Access to enterprise reports and analytics

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

**In-app purchases:** none


### GatherNow by Certain

[App page](https://appshunter.io/ios/app/gathernow-by-certain/id1301552692)

Discover and manage your upcoming conferences, events, and team gatherings. Connect with other attendees, access essential logistics like schedules and maps, and engage socially within the app.

**Highlights:** Network with attendees, Access event logistics, View schedules and maps, Participate socially, Find upcoming events

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

**In-app purchases:** none


## Frequently asked questions

### Is Appian free?

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

### Is GatherNow by Certain free?

GatherNow by Certain is free to download, with no in-app purchases.

### Which has better reviews, Appian or GatherNow by Certain?

GatherNow by Certain is rated higher. Appian averages 3.7 out of 5 from 40 ratings, while GatherNow by Certain averages 4.7 from 6 ratings.

### Do Appian or GatherNow by Certain have ads?

Neither Appian nor GatherNow by Certain shows ads.

### Which is updated more often, Appian or GatherNow by Certain?

Appian ships an update every 2 weeks, and GatherNow by Certain every 2 weeks. Most recently, Appian was updated on October 24, 2026 and GatherNow by Certain on October 24, 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.*