# Appian vs RapidSuite ETB

The clearest difference is review sentiment: RapidSuite ETB at 100% against Appian's 23%. RapidSuite ETB also leads on rating (5.0 vs 3.6) and iOS requirement (8.0 vs 18.0). Appian's advantage is update cadence (fortnightly vs every 8 months) and ratings volume (41 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RapidSuite ETB holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Appian has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 23% of Appian's written reviews are positive against 100% of RapidSuite ETB's.

Appian ships an update fortnightly, RapidSuite ETB every 8 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Appian | RapidSuite ETB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (41 ratings)](https://appshunter.io/ios/app/appian/id417065205/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rapidsuite-etb/id655217301/reviews)** |
| Number of ratings | **41** | 1 |
| Positive reviews | 23.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 8 months |
| Monetization | Free | Free |
| Size | 126 MB | 24 MB |
| Requires iOS | 18.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Appian Corporation](https://appshunter.io/developer/412880252) | [Halliburton](https://appshunter.io/developer/401718908) |

## 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


### RapidSuite ETB

[App page](https://appshunter.io/ios/app/rapidsuite-etb/id655217301)

This engineering tool provides calculators for designing and executing horizontal completion operations. It assists with stage selection, port configuration, pressure estimation, and displacement calculations for oil and gas resource development.

**Highlights:** Baffle Selector for stage and ball seat sizing, Port Configurator for stimulation optimization, Differential Pressure Estimator, Displacement Calculator for stage volumes, Offline functionality, Email results for recordkeeping

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Appian free?

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

### Is RapidSuite ETB free?

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

### Which has better reviews, Appian or RapidSuite ETB?

RapidSuite ETB is rated higher. Appian averages 3.6 out of 5 from 41 ratings, while RapidSuite ETB averages 5.0 from 1 ratings.

### Do Appian or RapidSuite ETB have ads?

Neither Appian nor RapidSuite ETB shows ads.

### Which is updated more often, Appian or RapidSuite ETB?

Appian ships an update fortnightly, and RapidSuite ETB every 8 months. Most recently, Appian was updated on September 8, 2026 and RapidSuite ETB 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.*