# iSum vs Offin

The clearest difference is rating: Offin at 5.0 against iSum's 4.1. Offin also leads on review sentiment (100% vs 83%). iSum's advantage is ratings volume (24 vs 1) and monetization model (free with in-app purchases vs paid). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. iSum sells 1 in-app purchase, starting at $2.99 per year and Offin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Offin holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: iSum has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of iSum's written reviews are positive against 100% of Offin's.

iSum ships an update fortnightly, Offin weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iSum | Offin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (24 ratings)](https://appshunter.io/ios/app/isum/id435350676/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/offin-offline-expense-tracker/id6791779529/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 82.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 1 MB | 38 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [ZEN PLUS LTD](https://appshunter.io/developer/317808580) | [RADIX IT TECH INC](https://appshunter.io/developer/6778635367) |

## What reviewers say

### iSum

[App page](https://appshunter.io/ios/app/isum/id435350676)

This finance app simplifies tracking expenses, time, and various metrics with a user-friendly interface. It offers customizable groups, in-depth insights, and easy data export. Manage finances, health, and more efficiently on your iPhone.

**Highlights:** Simplified and intuitive interface, Versatile tracking for expenses, time, and metrics, Customizable groups for organization, In-depth insights and trend overviews, CSV data export, Support for negative numbers in tracking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSum Annual Subscription | $2.99 | per year |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Straightforward and efficient
- 💡 Useful for tracking expenses and budgeting
- 🔒 Secure and private data storage
- ⭐ Great customer service and responsiveness

**What reviewers complain about**

- 🐛 Occasional crashes or data loss issues
- 🔒 Lack of password protection or security features
- 💰 Subscription model or paid upgrade concerns
- 📂 Limited number of categories or lists
- 🔄 Difficulty restoring previous purchases

**Reported bugs**

- Notes or descriptions disappearing after edits
- Incompatibility issues with newer iOS versions
- Incorrect date/time recording for entries

**Requested features**

- Add more category options
- Implement iCloud or cloud sync support
- Include a daily/weekly/monthly expense summary
- Allow customization of currency and date formats
- Provide a password protection or lock screen feature


### Offin

[App page](https://appshunter.io/ios/app/offin-offline-expense-tracker/id6791779529)

This app helps you track expenses and manage your budget privately on your iPhone. It uses on-device AI to categorize transactions from imported bank statements or voice input, eliminating the need for bank logins or subscriptions.

**Highlights:** On-device AI transaction categorization, Import bank statements (PDF/CSV), Apple Pay transaction logging, Voice input for transactions, Customizable categories and rules, Net worth, spending, and budget tracking, Offline functionality

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $9.99 | one-time |


## Frequently asked questions

### Is iSum free?

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

### Is Offin free?

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

### Which has better reviews, iSum or Offin?

Offin is rated higher. iSum averages 4.1 out of 5 from 24 ratings, while Offin averages 5.0 from 1 ratings.

### Do iSum or Offin have ads?

Neither iSum nor Offin shows ads.

### Which is updated more often, iSum or Offin?

iSum ships an update fortnightly, and Offin weekly. Most recently, iSum was updated on November 6, 2026 and Offin 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.*