# iSum — Track money, numbers and time

> Intuitive iPhone app for tracking numbers, expenses, time, and more. (iPhone/iPad app by ZEN PLUS LTD.)

- Source: https://appshunter.io/ios/app/isum/id435350676 (this page in markdown: same URL + `.md`)
- Developer: [ZEN PLUS LTD](https://appshunter.io/developer/317808580)
- Category: Finance, Productivity
- Price: Free with in-app purchases (on sale, was $2.99)
- Rating: 4.10/5 from 24 App Store ratings · 173 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: American English
- Released: 2011-05-11
- Data updated: 2026-08-15
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/isum/id435350676/reviews.md

## What is iSum?

Embrace the simplicity of tracking numbers, expenses, time, and so much more with iSum, all from the convenience of your iPhone. Our latest update brings you an even more polished and user-friendly interface, making iSum not just a tool, but a delight to use.

What's New?
Experience our beautifully redesigned UI, crafted to near perfection for the most intuitive and seamless tracking experience on your phone.

Why iSum?

Simplified Design: An intuitive, user-friendly interface for effortless data management.
Versatile Tracking: Effortlessly manage everything from daily expenses to health metrics.
Smart Organization: Customize groups for your tracking needs with ease.
In-Depth Insights: Access total sums, monthly averages, and trend overviews.
Export with Ease: Conveniently export data as a CSV file, whenever needed.
Track Balances: Now including negative numbers for comprehensive financial management.
Secure & Accessible: Your data, safeguarded with top-notch security and accessible whenever you need it.

Download iSum today and experience the pinnacle of easy and efficient data management on your iPhone! #iSum #TrackingSimplified

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Simplified and intuitive interface
- Versatile tracking of expenses, time, and metrics
- Customizable group organization
- In-depth data insights and trend overviews
- CSV data export functionality
- Support for tracking negative numbers

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| iSum Annual Subscription | $2.99 | per year |


## What do users think of iSum?

Overall sentiment: positive

**Pros**

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

**Cons**

- 🐛 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

**Commonly reported bugs**

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

**Most 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

## Recent user reviews (10 of 173)

All indexed reviews: https://appshunter.io/ios/app/isum/id435350676/reviews.md

### 4/5 — Simple and easy

*2024-07-22, version 6.2.0*

I have used this app for a while now. It’s simple and easy to use.

### 5/5 — Previous Purchases Restored !

*2023-11-24*

I give credit to the developer for listening to  customer concerns regarding the removal of the ‘restore previous purchases’ option when the app went to a subscription format. I had used iSum for many years and it was a great app for tracking multiple accounts in an uncomplicated but functional manner.  I stopped using it when the restore previous purchase was removed and I did not want to purchase a subscription format. I was impressed that the developer emailed me that the latest update restored the previous purchase option. I look forward to using iSum again!

### 5/5 — Great service

*2023-11-20*

The dev changed something and I didn’t like it. I wrote him and he fixed it! Cool dude!

### 5/5 — Simple and useful

*2023-09-06*

I’ve been using this for years now, and it’s always been easy to use. I use it for keeping track of household expenses by the month, I like the fact it’s got few bells and whistles, just does a simple task well. I’ve now upgraded to premium, this is one of the most useful apps on my iPhone ! Thanks guys !

### 1/5 — I don’t recommend it

*2023-07-30*

I bought it some time ago ( one payment for life time to be used as many entries as I want ) , now you switch to subscription and you deprive me from adding new entries which I paid for, you can switch to subscription for new users and they will have the choice to buy it or not

### 5/5 — Great service

*2023-07-16*

The dev changed something and I didn’t like it. I wrote him and he fixed it! Cool dude!

### 5/5 — Still great

*2023-07-07*

This is a lovely, simple app which does one thing well: it lets you keep track of, for instance, sums of money you've spent and when, categorising them and letting you add notes.  You can do some analysis in the app but also export to spreadsheets.

For a long time I lived in slight fear that it was not being updated and would one day die.  Well, it's just got an update, so my fears have been assuaged.  There is now a very cheap subscription for the full functionality: fine.

### 1/5 — Previous Purchased Options Removed??

*2023-07-04*

Have used for several years but disappointed and annoyed that this update with its switch to a subscription actually removed  the multiple accounts option I previously purchased !!   I have other apps that changed to a subscription format but they retained functions users previously purchased — not a happy camper and won’t support this app any longer!

**Developer response:** Please update to the latest version, app now has the option for restoring previous purchases.

### 1/5 — Where the updates?

*2023-04-26, version 5.2*

I used to LOVE this app, but it just crashes now.  Please update!
Thanks

### 5/5 — Einfach

*2022-02-06*

Gute App, tut was sie soll. Nur etwas schade, dass sie keine gute iPad Unterstützung hat

## Frequently asked questions about iSum

### What can I track with iSum?

iSum allows you to track a wide variety of data, including daily expenses, time spent on activities, health metrics, and much more. Its versatile design makes it suitable for managing numerous aspects of your life where quantifiable data is important.

### How does iSum help me understand my data?

The app provides in-depth insights into your tracked information. You can view total sums, monthly averages, and trend overviews, helping you to better understand your spending habits, time allocation, or any other data you are monitoring.

### Can I export my data from iSum?

Yes, iSum offers convenient data export functionality. You can easily export your tracked data as a CSV file, which can then be used for further analysis in other applications or for record-keeping purposes.

### Is iSum available on other platforms?

Based on the provided information, iSum is designed for iPhone. The description specifically mentions its convenience on your iPhone and its availability through the Apple ecosystem.

### Does iSum support tracking negative numbers?

Yes, iSum now includes support for tracking negative numbers. This feature is particularly useful for comprehensive financial management, allowing you to accurately record debts or other negative balances.

## Version history (last 5 releases)

### 6.2.0 — 2024-01-15

User interface improvements and tweaks.

### 6.1.3 — 2023-12-16

Stability improvements and bug fixes.

### 6.1.2 — 2023-11-29

Stability improvements and bug fixes.

### 6.1.1 — 2023-11-24

Enhanced wording and updated app screenshots

### 6.1.0 — 2023-11-18

Experience our beautifully redesigned UI, crafted to near perfection for the most intuitive and seamless tracking experience on your phone.

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All apps by ZEN PLUS LTD: https://appshunter.io/developer/317808580

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*