# Backplain vs Ai

The clearest difference is in-app purchases: Ai at none against Backplain's 2. Backplain's advantage is iOS requirement (15.1 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Backplain sells 2 in-app purchases, starting at $9.99 per month. Ai asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 12, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Backplain | Ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/backplain-compare-ai/id6474154184/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 6 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Backplain Inc.](https://appshunter.io/developer/1719066654) | [Michal Jach](https://appshunter.io/developer/1474348197) |

## What reviewers say

### Backplain

[App page](https://appshunter.io/ios/app/backplain-compare-ai/id6474154184)

Access over 30 AI models in one app to get faster, better answers. Compare responses from multiple AI engines side-by-side to instantly find the smartest solution. Boost productivity for research, writing, coding, and more.

**Highlights:** Access 30+ AI models, Side-by-side response comparison, Boost productivity, Affordable subscription, Private and secure

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backplain Pro Monthly | $9.99 | per month |
| Backplain Pro Yearly | $99.99 | per year |


### Ai

[App page](https://appshunter.io/ios/app/ai-open-source-ai-assistant/id6755691873)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Backplain free?

Backplain is free to download, with in-app purchases available.

### Is Ai free?

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

### Do Backplain or Ai have ads?

Neither Backplain nor Ai shows ads.

### Which is updated more often, Backplain or Ai?

Backplain ships an update monthly, and Ai monthly. Most recently, Backplain was updated on October 12, 2026 and Ai on September 28, 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.*