# Substract vs iTrading Buddy

The clearest difference is ads: iTrading Buddy at none against Substract's shown. Substract's advantage is update cadence (every 2 days vs fortnightly) and iOS requirement (15.1 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Substract sells 2 in-app purchases, starting at $4.99 per month and iTrading Buddy sells 7 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Substract ships an update every 2 days, iTrading Buddy fortnightly. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Substract | iTrading Buddy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 52 MB | 21 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [GOKHAN DEMIRER](https://appshunter.io/developer/1879459035) | [Jorge Valbuena](https://appshunter.io/developer/891566393) |

## What reviewers say

### Substract

[App page](https://appshunter.io/ios/app/substract-track-subscriptions/id6759550619)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $29.99 | per year |


### iTrading Buddy

[App page](https://appshunter.io/ios/app/itrading-buddy/id6762100092)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Annual | $99.99 | per year |
| 50 AI Credits | $1.99 | one-time |
| 100 AI Credits | $3.99 | one-time |
| 250 AI Credits | $7.99 | one-time |
| 500 AI Credits | $14.99 | one-time |
| 1000 AI Credits | $29.99 | one-time |


## Frequently asked questions

### Is Substract free?

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

### Is iTrading Buddy free?

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

### Do Substract or iTrading Buddy have ads?

Substract shows ads; iTrading Buddy does not.

### Which is updated more often, Substract or iTrading Buddy?

Substract ships an update every 2 days, and iTrading Buddy fortnightly. Most recently, Substract was updated on October 10, 2026 and iTrading Buddy on October 13, 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.*