# Cost Split Payments vs Cosum

The clearest difference is update cadence: Cosum at every 5 days against Cost Split Payments's fortnightly. Cost Split Payments's advantage is iOS requirement (16.0 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cost Split Payments sells 4 in-app purchases, starting at $4.99 per 7 days and Cosum sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Cost Split Payments ships an update fortnightly, Cosum every 5 days. The most recent releases landed on October 24, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Cost Split Payments | Cosum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (11 ratings)](https://appshunter.io/ios/app/cost-split-payments-settle-up/id6541750436/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 77 MB |
| Requires iOS | **16.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nadiia Martyniuk](https://appshunter.io/developer/1757187452) | [OGUZHAN OZGOKCE](https://appshunter.io/developer/6783226039) |

## What reviewers say

### Cost Split Payments

[App page](https://appshunter.io/ios/app/cost-split-payments-settle-up/id6541750436)

Effortlessly manage shared expenses with friends, roommates, or travel buddies. This app automates calculations, tracks debts, and categorizes spending, making financial coordination simple and stress-free. Enjoy offline functionality for tracking expenses anytime, anywhere.

**Highlights:** Create and manage groups, Log expenses with details, Automatic expense calculations, Track and settle debts, Customizable expense categories, Offline expense tracking

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| 6 Month | $8.99 | per 6 months |
| Yearly Plan | $17.99 | per year |
| 1 Month | $31.99 | per month |


### Cosum

[App page](https://appshunter.io/ios/app/cosum-split-bills-and-expenses/id6798811181)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is Cost Split Payments free?

Cost Split Payments is free to download, with in-app purchases available.

### Is Cosum free?

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

### Do Cost Split Payments or Cosum have ads?

Neither Cost Split Payments nor Cosum shows ads.

### Which is updated more often, Cost Split Payments or Cosum?

Cost Split Payments ships an update fortnightly, and Cosum every 5 days. Most recently, Cost Split Payments was updated on October 24, 2026 and Cosum on September 30, 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.*