# WhatChat vs Tacit OA

WhatChat and Tacit OA are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

WhatChat ships an update every 2 weeks, Tacit OA every 3 weeks. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | WhatChat | Tacit OA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 68 MB | 154 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Cloud Speed Technology Limited Co.](https://appshunter.io/developer/1507745952) | [Jiu Tian Yun Technology (wuhan) Limited Company](https://appshunter.io/developer/1554438567) |

## What reviewers say

### WhatChat

[App page](https://appshunter.io/ios/app/whatchat/id1495009600)

**In-app purchases:** none


### Tacit OA

[App page](https://appshunter.io/ios/app/tacit-oa/id1554438565)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WhatChat free?

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

### Is Tacit OA free?

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

### Do WhatChat or Tacit OA have ads?

Neither WhatChat nor Tacit OA shows ads.

### Which is updated more often, WhatChat or Tacit OA?

WhatChat ships an update every 2 weeks, and Tacit OA every 3 weeks. Most recently, WhatChat was updated on September 20, 2026 and Tacit OA on September 8, 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.*