# Indus by Sarvam vs Fabius

The clearest difference is in-app purchases: Indus by Sarvam at none against Fabius's 3. Indus by Sarvam also leads on ratings volume (36 vs 1). Fabius's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Fabius sells 3 one-off in-app purchases. Indus by Sarvam asks for nothing beyond the download.

Fabius holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Indus by Sarvam has 36 ratings behind it against 1, so its average is the more settled of the two.

Indus by Sarvam ships an update every 8 days, Fabius every 9 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Indus by Sarvam | Fabius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (36 ratings)](https://appshunter.io/ios/app/indus-by-sarvam/id6758622680/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fabius/id6806862609/reviews)** |
| Number of ratings | **36** | 1 |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 9 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 90 MB | 69 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Sarvam](https://appshunter.io/developer/1874000555) | [Subhi Mukbel](https://appshunter.io/developer/6806046893) |

## What reviewers say

### Indus by Sarvam

[App page](https://appshunter.io/ios/app/indus-by-sarvam/id6758622680)

This AI assistant helps simplify your day by providing quick answers, drafting messages, and researching topics. It understands Indian languages and allows for voice input, making interactions natural and efficient. Built in India, it prioritizes local data security and privacy.

**Highlights:** Natural language chat, Voice input for questions, Web research and summarization, Multi-language support, Indian data privacy focus

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

**In-app purchases:** none


### Fabius

[App page](https://appshunter.io/ios/app/fabius/id6806862609)

Design personalized AI agents with unique personalities, instructions, and tools. Upload documents and images to provide agents with specific knowledge for grounded answers. Collaborate with others in shared workspaces and connect to channels like Telegram.

**Highlights:** Custom AI agent design, Personalized agent personalities, Document and image knowledge integration, Team collaboration with roles, Telegram bot integration, Private by design, no tracking

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,400 Credits | $4.99 | one-time |
| 6,200 Credits | $19.99 | one-time |
| 17,000 Credits | $49.99 | one-time |


## Frequently asked questions

### Is Indus by Sarvam free?

Indus by Sarvam is free to download, with no in-app purchases.

### Is Fabius free?

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

### Which has better reviews, Indus by Sarvam or Fabius?

Fabius is rated higher. Indus by Sarvam averages 4.8 out of 5 from 36 ratings, while Fabius averages 5.0 from 1 ratings.

### Do Indus by Sarvam or Fabius have ads?

Neither Indus by Sarvam nor Fabius shows ads.

### Which is updated more often, Indus by Sarvam or Fabius?

Indus by Sarvam ships an update every 8 days, and Fabius every 9 days. Most recently, Indus by Sarvam was updated on October 31, 2026 and Fabius on October 31, 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.*