# O3 vs AI Expense Tracker & Budget

The clearest difference is in-app purchases: O3 at none against AI Expense Tracker & Budget's 3. O3 also leads on iOS requirement (15.2 vs 18.0). AI Expense Tracker & Budget's advantage is update cadence (weekly vs every 12 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. AI Expense Tracker & Budget sells 3 in-app purchases, starting at $4.99 per 7 days. O3 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for O3 against 5.0 for AI Expense Tracker & Budget. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

O3 ships an update every 12 months, AI Expense Tracker & Budget weekly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | O3 | AI Expense Tracker & Budget |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/o3/id1365145779/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ai-expense-tracker-and-budget/id1506783728/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 46.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 25 MB |
| Requires iOS | **15.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Delta Intelligent Building Technologies (Canada) Inc.](https://appshunter.io/developer/1039551888) | [SIarhei Tarasenka](https://appshunter.io/developer/1505953828) |

## What reviewers say

### O3

[App page](https://appshunter.io/ios/app/o3/id1365145779)

Control your smart home environment with this app. Create custom profiles for different activities to manage HVAC, lighting, and blinds. Optimize energy usage and personalize your space for comfort and productivity.

**Highlights:** Activity-based room profiles, Energy-saving eco modes, HVAC control, Lighting dimming, Blind adjustment, Bluetooth connectivity

**In-app purchases:** none


### AI Expense Tracker & Budget

[App page](https://appshunter.io/ios/app/ai-expense-tracker-and-budget/id1506783728)

This AI-powered app helps you manage your finances by tracking expenses, planning budgets, and analyzing spending habits. It offers features like voice input, receipt scanning, and multi-currency support to simplify financial management.

**Highlights:** AI expense tracking and analysis, Voice input for transactions, AI receipt scanning, Multi-currency and multi-wallet support, Savings goals and debt tracking, Recurring bill reminders, Category spending limits

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Subscription | $4.99 | per 7 days |
| Weekly Subscription | $4.99 | per 7 days |
| 1 Year Subscription | $29.99 | per year |


## Frequently asked questions

### Is O3 free?

O3 is free to download, with no in-app purchases.

### Is AI Expense Tracker & Budget free?

AI Expense Tracker & Budget is free to download, with in-app purchases available.

### Which has better reviews, O3 or AI Expense Tracker & Budget?

O3 and AI Expense Tracker & Budget are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do O3 or AI Expense Tracker & Budget have ads?

Neither O3 nor AI Expense Tracker & Budget shows ads.

### Which is updated more often, O3 or AI Expense Tracker & Budget?

O3 ships an update every 12 months, and AI Expense Tracker & Budget weekly. Most recently, O3 was updated on November 2, 2026 and AI Expense Tracker & Budget on November 3, 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.*