# Sankey App vs MONO

The clearest difference is price: MONO at Free against Sankey App's $4.99. MONO also leads on update cadence (daily vs every 2 months). Sankey App's advantage is iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

MONO is free to download; Sankey App costs $4.99 up front. Sankey App sells 1 one-off in-app purchase and MONO sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Sankey App ships an update every 2 months, MONO daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | Sankey App | MONO |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.6 (14 ratings)](https://appshunter.io/ios/app/mono-ai-expense-tracker/id6670716062/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 68.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Paid | **Freemium** |
| Size | 75 MB | 472 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Lukas Klein](https://appshunter.io/developer/1716534841) | [Chengdu Weisen Quwan Technology Co., Ltd](https://appshunter.io/developer/1755528939) |

## What reviewers say

### Sankey App

[App page](https://appshunter.io/ios/app/sankey-app/id6444832016)

Visualize your income and expenses with clear charts. Easily categorize transactions and manage your finances to stay informed about your spending habits and avoid missed payments.

**Highlights:** Income and expense visualization, Clear charts and diagrams, Intuitive user interface, Quick category assignment, Financial management, Payment tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sankey Pro | Free | one-time |


### MONO

[App page](https://appshunter.io/ios/app/mono-ai-expense-tracker/id6670716062)

Effortlessly track expenses using AI. Log transactions via text, screenshots, or photos, and get automatic categorization and smart reports. Manage subscriptions and multiple currencies with secure iCloud sync.

**Highlights:** AI-powered expense logging, Screenshot and photo recognition, Automatic categorization, Smart financial reports, Subscription management, Multi-currency support, iCloud sync

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium – Monthly Subscription | $2.99 | per month |
| Premium – Yearly Subscription | $9.99 | per year |
| Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is Sankey App free?

Sankey App costs $4.99, and also offers in-app purchases.

### Is MONO free?

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

### Do Sankey App or MONO have ads?

Neither Sankey App nor MONO shows ads.

### Which is updated more often, Sankey App or MONO?

Sankey App ships an update every 2 months, and MONO daily. Most recently, Sankey App was updated on October 25, 2026 and MONO on October 25, 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.*