# AltLLM vs Substrack

The clearest difference is in-app purchases: Substrack at none against AltLLM's 3. Substrack also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AltLLM sells 3 one-off in-app purchases. Substrack asks for nothing beyond the download.

AltLLM ships an update every 2 weeks, Substrack every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AltLLM | Substrack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 6 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alt Research](https://appshunter.io/developer/1865837452) | [Baris Gunduz](https://appshunter.io/developer/6775582146) |

## What reviewers say

### AltLLM

[App page](https://appshunter.io/ios/app/altllm/id6758421273)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $25.99 | one-time |
| 39.99 Credits | $39.99 | one-time |
| Power | $199.99 | one-time |


### Substrack

[App page](https://appshunter.io/ios/app/substrack-payment-tracker/id6775582144)

**In-app purchases:** none


## Frequently asked questions

### Is AltLLM free?

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

### Is Substrack free?

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

### Do AltLLM or Substrack have ads?

Neither AltLLM nor Substrack shows ads.

### Which is updated more often, AltLLM or Substrack?

AltLLM ships an update every 2 weeks, and Substrack every 4 days. Most recently, AltLLM was updated on November 5, 2026 and Substrack 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.*